International Journal of Recent Advances in Mechanical Engineering (IJMECH) (original) (raw)

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7 th International Conference on Mechanical Engineering & Applications (MEAP 2024) will provide ... more 7
th International Conference on Mechanical Engineering & Applications (MEAP 2024) will provide
an excellent international forum for sharing knowledge and results in theory, methodology and applications
impacts and challenges of Mechanical Engineering. The conference documents practical and theoretical
results which make a fundamental contribution for the development of Mechanical Engineering. The aim
of the conference is to provide a platform to the researchers and practitioners from both academia as well
as industry to meet and share cutting-edge development in the field.

IJMECH, 2024

International Journal of Recent Advances in Mechanical Engineering (IJMECH) is a peer-reviewed, o... more International Journal of Recent Advances in Mechanical Engineering (IJMECH) is a peer-reviewed, open access journal that addresses the impacts and challenges of Mechanical Engineering. The journal documents practical and theoretical results which make a fundamental contribution for the development of Mechanical Engineering.

Wireilla Scientific Publication

Papers by International Journal of Recent Advances in Mechanical Engineering (IJMECH)

IJMECH, 2023

Fine holes are an important structural component of industrial components, and their inner surfac... more Fine holes are an important structural component of industrial components, and their inner surface quality is closely related to their function. In order to detect the quality of the inner surface of the fine hole, a special optical measurement system was investigated in this paper. A sight pipe is employed to guide the external illumination light into the fine hole and output the relevant images simultaneously. A flexible light array is introduced to suit the narrow space, and the effective field of view is analyzed. Besides, the arc surface projection error and manufacturing assembly error of the device are analyzed, then compensated or ignored if small enough. In the test of prefabricated circular defects with the diameter φ0.1mm, φ0.2mm,0.4mm distance distribution and the fissure defects with the width 0.3mm, the maximum measurement error
standard deviation are all about 10μm. The minimum diameter of the measured fine hole is 4mm and the depth can reach 47mm.

International Journal of Recent Advances in Mechanical Engineering (IJMECH), 2021

In this work, mathematical models were developed to correlate the working temperatures of a diese... more In this work, mathematical models were developed to correlate the working temperatures of a diesel engine with the load and the oil content of Jatropha curcas in diesel. A Lister Petter indirect injection engine was used and a blend of diesel with 5 and 10% jatropha oil. A Factorial Design was used to plan the experiments and the Response Surface Methodology (RSM) to develop the correlations. The models obtained are used to predict the temperatures of the exhaust gases of the cylinders and the temperatures of the coolant at the inlet and outlet of the radiator. The JCO content in the fuel did not cause significant changes in exhaust gas or coolant temperatures. The diesel mixture with 10% Jatropha curcas vegetable oil does not produce changes in the thermal behavior of the engine, so it can be used directly in this type of engine without making any modifications.

The feasibility of using solar photovoltaic (PV) as an alternative to power a waste water treatme... more The feasibility of using solar photovoltaic (PV) as an alternative to power a waste water treatment plant (WWTP) in Trinidad was investigated. The site data and power consumption of the Orangefield WWTP was used to size a PV system with and without grid tied and tracking and non-tracking options. Present day costing was determined and a simple payback period for Trinidad and Tobago was calculated. The analysis indicated a minimum and maximum payback period of 27 years and 97.4 years, respectively. Therefore, in Trinidad and Tobago, even the most cost effective PV system was not financially feasible. A comparative payback period for neighbouring countries of Barbados and St. Vincent, with three times higher power cost than Trinidad and Tobago, indicated that solar power is more attractive and feasible with a minimum and maximum payback period of 9.1 and 8.6 years and 32.8 and 31.2 years, respectively.

This paper focuses on experimentalstudies of intake port of a four cylinder diesel engine for dif... more This paper focuses on experimentalstudies of intake port of a four cylinder diesel engine for different vacuum pressures and valve lift positions. In this study, the cylinder head is experimented through a paddle wheel flow setup, which gives the flow coefficient and swirl number asoutput. Main scope of the work is to understand the flow behaviour through the intake port and finally to determine mean flow coefficient and mean swirl number for different valve lift ratios L/D, where L is valve lift and D is bore diameter. KEYWORDS Experimental study,Intake port, mean swirl number, mean flow coefficient, L/D ratio.

The work and study presented in this paper aims to investigate the effect of nose radius on surfa... more The work and study presented in this paper aims to investigate the effect of nose radius on surface roughness, in CNC turning of Aluminium (6061) in dry condition. The effect of cutting conditions (speed, feed and depth of cut) and tool geometry (nose radius) on surface roughness were studied and analysed. Design of Experiments (DOE) were conducted for the analysis of the influence of the turning parameter on the surface roughness by using Response Surface Methodology (RSM) and then followed by optimization of the results using Analysis of Variance (ANOVA) to minimize surface roughness. The nose radius was identified as the most significant parameter. Surface roughness value decreased with increase in nose radius.

IJMECH, 2020

Sound pollution is big problem now-a-days and it causes many health issues. Soundproofing can be ... more Sound pollution is big problem now-a-days and it causes many health issues. Soundproofing can be used to mitigate the effect of sound pollution, but it adds to the building cost. However, acoustic materials have low thermal conductivity and they may result in saving due to reduced use of electrical energy for heating/cooling of buildings. In the present work, the effectiveness of a commercially available acoustic material, made of Compressed Wood Fiber Cement Composites with a backing of Anti vibration Pad, as a thermal insulator is experimentally investigated. A CAD model of anti-vibration pad material was developed by scanning it with micro CT, converting grey scale data into binary scale by CTan software and extracting 3D- Model from binary data by using Scan IP software. The CAD model was imported into ANSYS workbench for determining thermal conductivity of the anti-vibration pad, which was experimentally validated. The thermal conductivity of composite material was then calculated by Fourier equation. A comprehensive CAD model of anti-vibration pad, composite material and brick-and-mortar wall was used to simulate the variations in room temperature with ambient temperature for one calendar year. The results show that acoustic insulation material also serves as a thermal insulator keeping the room nearly constant with varying ambient temperature.

IJMECH, 2020

International Journal of Recent advances in Mechanical Engineering (IJMECH) is a peer-reviewed, o... more International Journal of Recent advances in Mechanical Engineering (IJMECH) is a peer-reviewed, open access journal that addresses the impacts and challenges of Mechanical Engineering. The journal documents practical and theoretical results which make a fundamental contribution for the development of Mechanical Engineering. This journal aims to bring together researchers and practitioners in all Mechanical Engineering aspects, including (but not limited to):

AIRCCSE, 2019

The removal of macro-burrs formed after drilling has always been a difficult engineering problem,... more The removal of macro-burrs formed after drilling has always been a difficult engineering problem, especially on different-machined materials with through holes. This paper aims at presenting an investigation into hole exit characteristics of Ti6Al4V drilled. Plastic deformation at the end of the cutting process or blanking results into the forming of burr, whose degree of impact is mostly affected by the processing parameters, especially the axial feed. Series experiments were conducted to analysis the effect of processing parameter on formed burr. The volume of burr has great effect on work-piece quality and product cost, the burr height formed easily decreases because great attention from scholars and engineers has been paid to, while the burr width size despised naturally plays a great influence on product quality and machining cost. The new de-burring tool are designed and applied in experiment, the decrease in burr width is obviously found, so the removal of burrs becomes much little than that gotten in traditional tool. The resulting indicates a promising future of de-burring in practical application Journals.

AIRCC, 2018

Now the public traffics make the life more and more convenient. The amount of vehicles in large o... more Now the public traffics make the life more and more convenient. The amount of vehicles in large or medium sized cities is also in the rapid growth. In order to take full advantage of social resources and protect the environment, regional end-to-end public transport services are established by analyzing online travel data. The usage of computer programs for processing of the web page is necessary for accessing to a large number of the carpool data. In the paper, web crawlers are designed to capture the travel data from several large service sites. In order to maximize the access to traffic data, a breadth-first algorithm is used. The carpool data will be saved in a structured form. Additionally, the paper has provided a convenient method of data collecting to the program.

Wire EDM machines are developed to cut any type of material which have soft to hard behavior in p... more Wire EDM machines are developed to cut any type of material which have soft to hard behavior in present era. Material must have conductive in nature for this type of machine operation like metals, alloys etc. Wire EDM machine can cut complex design as well as simple design of cut by its nature, sometime very complex cut designs are also easily cut by this machine. The steady nature of parts being machined in wire electrical release machining is troublesome in light of the fact that the procedure parameters can't be controlled successfully. These are the greatest difficulties for the scientists and engineers. Producers endeavour to discover control variables to enhance the machining quality in view of their operational encounters, manuals or fizzled endeavours. Keeping in see the uses of material modern industrial steel (medium carbon steel), it has been chosen and has been machined on wire-cut EDM (Maxicut-e) of Electronica Machine Tools Limited. All experiments are carried out in CIPET, Jaipur. The target of the present work was to explore the impacts of the different WEDM process parameters on the machining quality and to acquire the ideal arrangements of process parameters with the goal that the nature of machined parts can be streamlined. The whole arrangement of investigations was done in a staged way. The analyses in each stage were rehashed three times. The Taguchi system has been utilized to explore the impacts of the WEDM procedure parameters and in this manner to foresee sets of ideal parameters for ideal quality attributes. The response surface approach (RSM) in conjunction with single piece and focus point configuration has been utilized to build up the observational models for reaction qualities. Development of mathematical models for cutting rate and cutting time using response surface methodology. MOGA optimization technique was also applied in this study for analysis and prediction of results.

Residual stresses generated in tool play a very important role during machining process .The func... more Residual stresses generated in tool play a very important role during machining process .The functional behavior of tool can be enhanced or affected by residual stresses. To understanding the residual stress imparted by machining is an important aspect of the overall quality of the part. The main objectives of this paper is develop a numerical approach to predict the near surface residual stresses in cutting tool and work piece resulting from turning of AISI 1006 and validate the model with ANN. The FEM Explicit dynamics is used for calculating the residual stress in real time environment. Total L16 experiments were designed by Taguchi method. Three input factors (depth of cut, cutting speed and rack angle) and two responses (stress and strain) selected for simulation work. Optimizations of process parameters were done using design of experiments (DOE) and analysis of variance (ANOVA) for some qualitative outcome. In this study model equations are also generated for further analysis using linear regression modeling technique using Minitab software. An artificial neural network model is using for the analysis and prediction the responses. On the basis of simulation work tool wear is dependent on rack angle.

Investigations were carried out to evaluate the performance of a low heat rejection (LHR) diesel ... more Investigations were carried out to evaluate the performance of a low heat rejection (LHR) diesel engine with air gap insulated piston with superni (an alloy of nickel) and air gap insulated liner with different operating conditions [normal temperature and pre-heated temperature] of mohr oil based bio-diesel (MOBD) with varied injection pressure and injection timing. Performance parameters and exhaust emissions of smoke and oxides of nitrogen (NOx) were determined at different magnitudes of brake mean effective pressure (BMEP). Combustion characteristics at peak load operation of the engine were measured with TDC (top dead centre) encoder, pressure transducer, console and special pressure-crank angle software package. Conventional engine (CE) showed marginal improvement in performance with biodiesel operation, while LHR engine showed improved performance at recommended injection timing of 27 o bTDC (before top dead centre) and recommended injection pressure of 190 bar. The performance of both version of the engine improved with advanced injection timing and at higher injection pressure when compared with CE with pure diesel operation. The optimum injection timing was 33 o bTDC for CE while it was 31 o bTDC with LHR engine with biodiesel operation. Peak brake thermal efficiency increased by 12.5%, smoke levels decreased by 48% and NOx levels increased by 35% with MOBD operation on LHR engine at its optimum injection timing, when compared with pure diesel operation on CE at 27 o bTDC.

International Journal of Recent advances in Mechanical Engineering (IJMECH), 2015

The purpose of current study is to analyze the performance of an open cycle gas turbine power pla... more The purpose of current study is to analyze the performance of an open cycle gas turbine power plant using the concepts of exergoeconomics. Exergoeconomic technique involves the use of Second law of thermodynamics and assigns monetary values to the thermodynamic quantity known as exergy. Analyses based on exergoeconomic criteria are done for the open cycle gas turbine power plant turbine. The methodology is illustrated using the example of a 25 MW open cycle gas turbine power plant. Optimization has been done for the open cycle gas turbine power plant as tradeoffs between the unit product cost of the compressor and combustion chamber as functions of compressor pressure ratio and unit product costs of combustion chamber and gas turbine as functions of turbine inlet temperature.

In this paper, bending analysis of a circular sandwich plate under distributed load with simply s... more In this paper, bending analysis of a circular sandwich plate under distributed load with simply supported and clamped boundary conditions is investigated. First, the governing equations of the circular sandwich plate are obtained and they are solved using the Bessel functions. Then in order to validate the correctness of analytical results, numerical finite element method is used and its results are presented in the forms of contours and graphs. The results indicate that under distributed load, maximum deflection happens at 0.3 of outside radius, away from centre, and minimum deflection occurs at the outer edge of the circular sandwich plate. The results from analytical and numerical methods are compared and it shows that analytical method provides an acceptable accuracy.

Today the maintenance and repair based on condition monitoring techniques of rotating equipment i... more Today the maintenance and repair based on condition monitoring techniques of rotating equipment is one of the most important tools to prevent stopping of production and reduce the cost of maintenance and repair and the vibration analysis according to the width of identifiable defects scope has a specific importance. In this paper, we discuss about rolling bearings defects detection with using of normalized Hilbert huang approach.

The decision on sequencing of operations, tool travel and machining time calculations is done in ... more The decision on sequencing of operations, tool travel and machining time calculations is done in microplanning. After a set of processes has been selected for all the features of part, the sequencing task begins by searching and analysing relationship between features. This is done by rule to detect geometrical interactions and the appropriate precedence relationship in knowledge base. For deciding sequence of operations precedence relationship among the different operations is developed using decision rules. CNC program is generated based on the process plan of a given component. The generated CNC program is then validated by simulation software before giving it to CNC machine.

Heat storage is a good energy saving option these days. Heat storage makes it possible to use the... more Heat storage is a good energy saving option these days. Heat storage makes it possible to use thermal energy at the required time. Solar water heaters for construction purposes and industrial purposes are the best source to maintain traditional energy sources and thus can maintain high quality energy and liquid or steel fuel due to the highest rise in their prices. In recent years, using solar energy has become remarkably cheap and especially noteworthy. The efficiency of natural solar water heater system depends on collector and reservoir setting, design and environmental factors such as solar intensity, ambient temperature and wind conditions. Also, the relative height of the tank and collector separation mainly affects the volume of the Siphon thermal flow rates, including both forward and reverse flow at night. In this pilot investigation, two parallel rectangular glass plates were connected to the hot water storage tank. The effect of the separation space between the plates (collectors) (D) was investigated and reported. The results reported that outlet temperature in case D= 15 cm for two plates decreased approximately 24% and 23% for two plates. Also, the heat radiated to the room decreased as the inner space between the two plates increased, and decreased to approximately 25% as compared to stack plates.

IJMECH, 2024

Wireilla Scientific Publication

IJMECH, 2023

International Journal of Recent Advances in Mechanical Engineering (IJMECH), 2021

IJMECH, 2020

AIRCCSE, 2019

AIRCC, 2018

International Journal of Recent advances in Mechanical Engineering (IJMECH), 2015

Internal combustion engines in now a days is the best available reliable source of power for all ... more Internal combustion engines in now a days is the best available reliable source of power for all domestic, large scale industrial and transportation applications. The major issue arises at the efficiency of these engines. Every attempt made to improve these engines tends to attain the maximum efficiency. The study is about the effects of air swirl in the cylinder on its performance. Here a single cylinder direct injection diesel engine is used for study. For obtaining different swirl intensities the following design parameters have been changed the piston crown, cylinder head and inlet duct. By changing the piston crown design the enhancement in the turbulence inside the cylinder is achieved. Also grooves are made to achieve the increase in swirl intensity for better mixing of fuel and air.

Due to the wear event and its impact on the metro system, studying the factors influencing this p... more Due to the wear event and its impact on the metro system, studying the factors influencing this phenomenon has been always regarded. Based on this paper, a better maintenance schedule can be resulted in terms of understanding of how deformation and displacement occur and conduct during the fleet operation. Indeed, first by implementing the field measurements, the precision profile evolution of wheel/rail can be discovered with mileage. Secondly, the worst profile evolution behaviours are modelled and the simulations will be approached to find the lateral/vertical displacements and their behaviours by logged distance. Moreover, for better analysis and comparison of the outcomes, contact theories have been also applied. Simulation results indicate that the maximum transverse displacement for rail and wheel occur on the rail's head and on the wheel's web on the S shape profile, respectively. The simulation presents about-16.7% and 7% changings in displacements by the logged distances.

Electrochemical discharge machining (ECDM) is a composite technology that combines electric disch... more Electrochemical discharge machining (ECDM) is a composite technology that combines electric discharge
machining (EDM) with electrochemical machining (ECM). In this study, ECDM was used for the
processing of honeycomb seal structures, and fluid dynamic simulation and experimental study were
conducted. A vortex effect was observed, hindering the electrolyte flow. Compared to other fluid supply
methods, a bilateral fluid supply can reduce vorticity and velocity, weakening the vortex effect. According
to the result and the current signals after discrete wavelet transformation (DWT), the higher voltage and
flow rate can increase total energy and exacerbate the vortex effect respectively, and strengthen the EDM
and ECM effect, resulting in more processing depth, over corrosion depth, and molten product height.
However, the higher electrolyte concentration can reduce the EDM effect, and enhance the ECM effect,
which leads to more over corrosion depth, less processing depth and molten product height. The research
results proved that ECDM has a good effect on processing honeycomb seal structures.

This paper presents an analysis of conical components in pressure vessels emphasizing their signi... more This paper presents an analysis of conical components in pressure vessels emphasizing their significance when utilized to transition between different diameters or slopes. It aims to propose enhancements to the
European Pressure Vessel Codes concerning conical components under internal pressure focused on improving safety, reliability, and compliance with industry regulations.

Wirella

International Journal of Recent Advances in Mechanical Engineering (IJMECH), 2021

At present, double layers bicycle garage and single layer bicycle garage are mostly used in the m... more At present, double layers bicycle garage and single layer bicycle garage are mostly used in the market,
and the double layer bicycle garage is also operate by manual adjustment. The purpose of this paper is to
design an intelligent bicycle garage with multiple combination units, which can set up an ideal number of
frames according to different locations and different needs, and according to the size of the local location,
several arrangement and combination can be selected, so our stereoscopic garage is more practical and
convenient. This design adopts the parking board, frame, sprocket chain mechanism, belt conveyer
mechanism and the horizontal movement mode similar to the sliding rail to complete the automatic
access bicycle. The vertical rise and fall are driven by four synchronous motors to drive the sprocket
chain drive, and the horizontal move is realized by belt wheel drive and auxiliary baffle. This stereo
garage can be flexibly according to people's needs in the garage to mobilize the bicycle, meet people take
the car at any time, parking at any time. Improve the use of space and beautify the city at the same time. It
has the advantages of high density, flexible layout, low cost, convenient use and good social benefits.

The function of this car is to provide convenience to the soldiers in the civil area warzone. Unl... more The function of this car is to provide convenience to the soldiers in the civil area warzone. Unlike other army vehicles, this car has broad tires which works well on the road. The car has four forward gears & four reverse gears. So after firing on the target the driver has no need to waste the time in turning the vehicle. As the differential is fixed in all other vehicles but in this project we placed a modified moving differential. Which changes its position between the forward and the reverse gear drive shafts. Hence provide convenience to the gear shifting. The car has chassis less construction. i.e., the body has directly mounted on the frame of the car with the help of fasteners. The car body is made up of fiberglass, we used the approach of clay modeling in the designing of the molds and the virtual design of the car body is designed under Catia V5. The parts of the car has been taken from the junkyard, the flushed cleaned, greased or oiled , fitted , modified if needed, tested and then painted and finally assembled in the vehicle.

Ceramic based coatings are routinely being engineered to protect metallic components from high te... more Ceramic based coatings are routinely being engineered to protect metallic components from high temperature environments in applications like gas turbines and jet engines. However, although a well-researched technology, detailed and realistic information on the effects of thermal barrier coatings (TBCs) in improving the performance of commercial diesel engines is either classified or inconsistent. Additional information by means of lab scale and analytical evaluation of TBCs prepared from 8%Y 2 O 3-ZrO 2 plasma sprayable powders (prepared in the laboratory by using organic binders), coated onto aluminium substrates, corroborated by simulation model is one part of this paper. The findings are supplemented by studying the influence of the TBCs on aluminium pistons in a single cylinder nine horsepower class diesel engine, thereby carrying out realistic performance of the engine involving parameters such as Power (Brake, Indicated and Frictional), thermal efficiency, fuel consumption, effects of ceramic insulation on emission and exhaust temperature and peak cylinder pressure, as the concluding part of the studies. KEYWORDS Y 2 O 3-stabilized Zirconia plasma sprayed TBCs, TBC coated piston, diesel engine performance, simulation model of TBCs on aluminium substrate.

Having access to high speed diving without the use of mechanical science and discovery centers ha... more Having access to high speed diving without the use of mechanical science and discovery centers have been considered. Production of simple, yet effective tool to reduce energy consumption and associated diver is very valuable. Assistant diver device that works with human muscle power, includes a pair of ballets. This system reduces the energy required to dive to less than half as the speed increases to 2 to 5 knot. Using numerical methods can answer a lot of questions and a simulation of the dynamic behavior of the device. In this article, modeling of fluid flow around the Diver helper of FLUENT software and using Dynamic Mesh have been done. Flow lines show an increase in the angle of the fins and causes development of vortices behind them. Pressure Cantor can also be used in the analysis of the fins. The drag coefficient ballet based on the device at various angles in a period is reported in charts.

Optimization of machining parameters is very valuable to maintain the accuracy of the components ... more Optimization of machining parameters is very valuable to maintain the accuracy of the components and obtain cost effective Machining.MRR (material removal rate) and surface roughness is playing primary role in manufacturing using contemporary CNC (computer numerical controlled) machines, in the case of mass manufacturing. In present study experimental and work is done for optimization of process parameters. In experimental work total 32 experiments are designed according DOE method " Mixed taguchi ". Three factors are selected for experimental work. Depth of cut, speed and feed rate is selected factors for experimental work. All experiments are carried out in CIPET, Jaipur. Two responses are find out in this work and are following: first one is material removal rate (MRR) and second response is surface roughness (Ra) measurement. An artificial neural network is 'Feed Forward Back Propagation' type model of developing the analysis and prediction of surface roughness and MRR with relationship between all input process parameters.

Material handling equipment plays an important role in the design and development of advance manu... more Material handling equipment plays an important role in the design and development of advance manufacturing systems (AMS) like flexible manufacturing systems. Material handling equipments affects the performance and productivity of these advance manufacturing systems. So it becomes very important to select a right kind of equipment while designing the high end manufacturing systems like FMS. In this paper an attempt has been made to select the most appropriate material handling equipment for the design and development of FMS. The proposed model has been build on the basis of material handling attributes and sub attributes which are critical for material handling equipment selection. KEYWORDS Analytical hierarchy process, material handling equipments, multi criteria decision making, optimization and flexible manufacturing systems.

The small scale industries (SSIs) play very important role in the Indian economy. SSIs contribute... more The small scale industries (SSIs) play very important role in the Indian economy. SSIs contribute in terms of industrial production, export, employment and creation of an entrepreneurial base for the country. In most of the SSIs in India, either traditionally designed tools are used or manual work is performed. Long hours work with traditionally designed tools and un-ergonomic work places can cause musculoskeletal disorders (MSDs) and other occupational health problems among workers. Workers well-being is highly associated with the productivity and cost benefits of small scale industries. This review paper aims to identify various MSDs and occupational health problems among workers in SSIs. The effects of ergonomic interventions for improved occupational healthas well as productivity enhancement and cost benefits of SSIs are also reviewed in paper.

Combined Cycle Power Plants (CCPPs) are imperative for power generation with the capability for d... more Combined Cycle Power Plants (CCPPs) are imperative for power generation with the capability for
deciphering power shortage during peak and off peak hours. To perk up the recital of the plant, foremost
locations of exergy losses are to be identified and analyzed. In the present work, exergetic analysis of a
CCPP is carried out using the computer programming tool Engineering Equation Solver (EES). The effects
of overall pressure ratio and turbine inlet temperature on the exergy destruction in the CPR are
investigated. The results obtained are compared with that of simple gas turbine cycle power plant. During
real time operation of CCPP exergy destruction in different components is associated with change in
overall pressure ratio and turbine inlet temperature (TIT). Out of the total exergy destruction in the cycle it
is the combustion chamber (CC) which is responsible for the maximum exergy destruction. Nearly 60% of
the total exergy is destroyed in CC. Results clearly show that with increase in complicacy of the power
plant structure, irreversibility of the processes can be improved.

Hand block textile printing is an important operation in small scale textile industries of India.... more Hand block textile printing is an important operation in small scale textile industries of India. Hand tool
mechanisms designed to reduce the various risk factors have rarely been studied. To make comfortable
handle design, musculoskeletal disorders prevalence investigation of workers associated with hand block
printing operation has been done. Data related to musculoskeletal discomfort were collected from 80
workers (age group 18-60 years) using questionnaire. Rapid upper limb assessment (RULA) technique was
applied for postural analysis. New hand block tool was designed using Autodesk Inventor 2014
(Educational Institute Version i.e. V5R12) and then analyzed with HyperMesh (Version 12.0) software.
Most of the workers reported that working with existing hand block tool is not comfortable. RULA
technique resulted as final score of arm and wrist for the working with existing hand block tool was found
out to be 5. After the modifications in hand block tool by using the ergonomics principles and
anthropometric data, RULA final score of arm and wrists for the working with developed hand block tool
was found out to be 3. The developed hand block tool has been revealed to be better than the existing one in
term of comfort level, it is improved 42.69% and production rate 29.62% increase as compared to the
existing hand block tool, it could offer an improved working facility and trim down unwanted workplace
injuries.

The enhancement of natural convection heat transfer using nanofluids from horizontal square cylin... more The enhancement of natural convection heat transfer using nanofluids from horizontal square cylinder
placed in a square enclosure is investigated numerically. Water-based Cu is used as the working nanofluid.
The investigation covered a range of Rayleigh numbers of 104
- 106
, nanoparticles volume fraction of
(0<ϕ≤0.2), enclosure width to cylinder height ratio, W/H of 2.5. The investigation includes the solution of
the governing equations in the Vorticity-Stream function space with the aid of a body fitted coordinate
system. Algebraic grid generation is used in the initial transformations, followed by an elliptic
transformation to complete the grid generation to computational domain. The resulting discretized system
of equations is solved using an ADI method. The built code is validated and the results showed an increase
in average Nusselt number with increasing the volume fraction of the nanoparticles for the whole range of
Rayleigh number. The isotherms are nearly similar when the volume fraction of nanoparticles is increased
from 0 to 0.2 for each Rayleigh number but a change in the streamlines is observed.

This paper presents the inverse kinematic analysis and parameters identification of a novel aeria... more This paper presents the inverse kinematic analysis and parameters identification of a novel aerial
manipulation system. This system consists of 2-link manipulator attached to the bottom of a quadrotor. This
new system presents a solution for the limitations found in the current quadrotor manipulation system. By
deriving the inverse kinematics, one can design the controller such that the desired end effector position and
orientation can be tracked. To study the feasibility of the proposed system, a quadrotor with high enough
payload to add the 2-link manipulator is designed and constructed. Experimental setup of the system is
introduced with an experiment to estimate the rotors parameters. Its parameters are identified to be used in
the simulation and controller design of the proposed system. System dynamics are derived briefly based on
Newton Euler Method. The controller of the proposed system is designed based on Robust Internal-loop
Compensator (RIC) and compared to Fuzzy Model Reference Learning Control (FMRLC) technique which
was previously designed and tested for the proposed system. These controllers are tested for provide system
stability and trajectory tracking under the effect of picking as well as placing a payload and under the effect
of changing the operating region. Simulation framework is implemented in MATLAB/SIMULINK
environment. The simulation results indicate the effectiveness of the inverse kinematic analysis and the
proposed control technique.

Simulation using CAE tools have been performed using three different models of leaf spring to fin... more Simulation using CAE tools have been performed using three different models of leaf spring to find out an
optimized model considering design and material optimization. To optimise the EN45A leaf spring
assembly the conventional flat profile has been changed to parabolic one. In which the thickness of the
leaves decreases from centre to edges. This change in design results into elimination of interleaf friction of
the mating leaves. For material optimization the material of leaf spring has been replaced from steel
(EN45A) to composite materials (GRP). The objective of this work is to produce an optimise model of leaf
spring with reduced weight, stresses and improved fatigue life for similar loading conditions.

This research work studies the basic influence of cutting process parameters used in single point... more This research work studies the basic influence of cutting process parameters used in single point cutting
tool based on machining operations. In this study design of experiment methodology is used for some
qualitative outcome. Taguchi method is used for experiment design. L16 orthogonal array is solved using
ANSYS Explicit Dynamics software. ANOVA analysis is performed using Minitab software. Results show
that most critical factor which affects stress generated during cutting operations are rake angle of tool and
feed rate. In this study model equations are also generated for further analysis using linear regression
modeling technique using Minitab software.

The aim of this paper is to study the performance of nozzle injector by changing its shape and fu... more The aim of this paper is to study the performance of nozzle injector by changing its shape and fuels. Diesel
injector orifice shape has an important role in defining the performance and emission characteristics of a
diesel engine. It assist in adequate blending and atomisation of the fuel. Cavitation phenomena occurring
inside the nozzle injector have an impact on the fluid flow dynamics which in turn affects the performance
and emission characteristics of diesel engines. Also to restrict the emission caused by diesel engine many
research is going on. In this paper, dimethyl ether (DME) is compared with diesel fuel by using CFD
software. And to improve the performance of injector a comparison of cylindrical and conical orifice diesel
injector has been done by using diesel and dimethyl ether. It has been observed that dimethyl ether with
cylindrical orifice nozzle injector has more cavitating effects than the diesel fuel. Due to this, better fuel air
mixing and atomisation of the fuel is achieved, that successively enhance the performance of the engine.
And the emission of soot, SOx and NOx is greatly reduced by using dimethyl ether as the fuel due to its
properties.

MECE , 2024

8th International Conference on Trends in Mechanical Engineering (MECE 2024) will act as a major ... more 8th International Conference on Trends in Mechanical Engineering (MECE 2024) will act as a major forum for the presentation of innovative ideas, approaches, developments, and research projects in the area advanced Artificial Intelligence. It will also serve to facilitate the exchange of information between researchers and industry professionals to discuss the latest issues and advancement in the research area. Core areas of AI and advanced multi-disciplinary and its applications will be covered during the conferences.

IJMECH, 2019

Scope & Topics International Journal of Recent Advances in Mechanical Engineering (IJMECH) is a p... more Scope & Topics
International Journal of Recent Advances in Mechanical Engineering (IJMECH) is a peer-reviewed, open access journal that addresses the impacts and challenges of Mechanical Engineering. The journal documents practical and theoretical results which make a fundamental contribution for the development of Mechanical Engineering

Thermal comfort is the major factor responsible for the refinement of ventilation of an office. I... more Thermal comfort is the major factor responsible for the refinement of ventilation of an office. Installation
of fans inside the room greatly affects the overall air circulation of the room. The effect of Evaporative
cooling with internal fans is simulated under various conditions for an office building located in Jaipur,
Rajasthan (India). Thermal comfort parameters are used for analysis: Cooling air speed. CFD studies
were carried out by using the ANSYS FLUENT 14.5 to find the effect of inlet air speed, presence of heat
source inside the building. For analysis, turbulence model (k-Ɛ model) was used. Under radiation model,
Rosseland model was used. Boundary conditions are given for the inlet, internal fans and outlet. All
experiments are designed using Taguchi methods and orthogonal array methods to get better overall
results.

Unit electricity generation cost from an energy resource such as coal with the help of energy con... more Unit electricity generation cost from an energy resource such as coal with the help of energy conversion
systems such as cogeneration cycle power plant (CGCPP) is dependent upon many of the factors such as (a)
system structure which is comprised of layout and design (b) system availability which is further dependent
upon maintenance (c) power plant thermal efficiency and other regulatory aspects. These are the
parameters which are affecting power plant performance. These are numerous in number and nature. For
the complete analysis of cogeneration cycle power plant a multi attribute decision making (MADM)
technique is required to study the effect of one parameter on the others. In the present analysis a
combination of two mathematical tools graph theory and matrix method is used to develop a methodology to
evaluate cogeneration cycle power plant performance. The maximum and minimum value of cogeneration
cycle power plant performance index is calculated which indicates the range with in which it can vary. This
range can be compared with real time value in order asses the relative performance of the system in real
time situation.

This paper studies the effect of process parameters like melt temperature, mold temperature,packi... more This paper studies the effect of process parameters like melt temperature, mold temperature,packing
pressure, sprue diameter and gate diameter on product quality responses like fill time of cavity and
volumetric shrinkage of electrical switch board.In the first part an experimental methodology was
developed using DOE (Design of experiment)technique. Taguchi method was used to design an orthogonal
array of five factors having three levels. Second part is developing FEM simulation using MFA software
provided by Autodesk Company. Main results are based on S/N ratio and ANOVA analysis. It is found that
most critical parameter in this study is sprue diameter and less effective parameter is packing pressure.
Model equations are also developed in this study.

Centrifugal fans are high speed rotating turbo machines vulnerable to vibrations resulting in the... more Centrifugal fans are high speed rotating turbo machines vulnerable to vibrations resulting in the failure of
the system eventually. During every start-up and shutdown of centrifugal fan, the fan blades are subjected
to centrifugal, bending and vibratory loads. This repeated start-up and shutdown can reduce the life of fan
blades. A fatigue and modal analysis of the fan is, therefore, very important in the design and development
of fans, to prevent premature failure. In this paper the finite element analysis of a centrifugal fan impeller,
for a high tuned design is carried out using ANSYS. The Finite Element Analysis is to be done on the
following platform, “Fatigue and modal analysis at 705 rpm at 110°F” to determine the various
performance parameters. Analysis is linear static structural and the model used is Gerber stress theory.
From fatigue analysis we can determine whether the fan is safe to run in the operating conditions and
further the design can be improved. Modal analysis of the fan is very important in the design and
development of fan, to prevent premature failure. In modal analysis the first ten natural frequencies were
compared to the frequency generated from fan operating speed. This is done to avoid resonance
phenomenon which causes the vibration failure. So that fan can run safely in the operating conditions.

The problem of cross-flow induced vibration of structures is important in many fields of engineer... more The problem of cross-flow induced vibration of structures is important in many fields of engineering. Many
experimental and numerical works is done in cross-flow induced vibration phenomenon considering
different parameters. Many researchers have studied cross-flow induced vibration and suggested methods
to damp the vibration or reduce the vibration amplitude by changing different parameters like orientation
of the tube bundle, pitch over diameter ratio, surface roughness of the tube etc. Cross-flow induced
vibration in cross flow of a flexible tube in tube array is studied experimentally, where the cylinder was
loosely supported. Experiments were carried out on six tube banks for two different arrangements viz.
inline and staggered arrangement. It is observed that with the increase in the velocity, the displacement of
tube increases for both inline and staggered arrangement. As the pitch over diameter ratio increases, the
displacement of the flexible tube goes on decreasing. It is also observed that the displacement of a flexible
tube subjected to cross flow for staggered arrangement is more compared to inline arrangement for same
tube spacing.

The musculoskeletal disorders are the most common work-related health problems in India, affectin... more The musculoskeletal disorders are the most common work-related health problems in India, affecting
thousands of workers. Typically, musculoskeletal disorders affect the low back, neck, shoulders and wrist
pain.This study was conducted in screen printing textile industry of Jaipur, Rajasthan, Indiato determine
the occurrence of upper limb problems associated with hand tool design, investigate the existing hand tools
currently used in screen printing, and redesign hand tool based on anthropometric dimensions and
ergonomic principles. In this study, 300 workers were participated and a questionnaire survey consisting of
personal details, anthropometric dimensions of hand and Nordic Questionnaire for musculoskeletal
disorders has been done.In 64% of the cases, the new hand tool was evaluated as little better or better and
the comfort was improved.

The main purpose of this paper is to comprehend the contextual relation among the different quali... more The main purpose of this paper is to comprehend the contextual relation among the different quality
enabled factors (QEFs) of inventory control system stage of production system life cycle. Interpretative
structural modelling (ISM) approach is utilized to cultivate the relationship among the identified QEFs of
inventory control system stage. Afterwards, MICMAC (cross-impact matrix multiplication applied to
classification) analysis has been applied in order to identify and classify the imperative QEFs and
disclose the direct and indirect effects of each QEF on the inventory control system stage of production
system life cycle.

The purpose of this study is to analyze the effect of hot air temperature on the thermoeconomic p... more The purpose of this study is to analyze the effect of hot air temperature on the thermoeconomic
performance of a boiler used in a coal fired thermal power plant. Thermoeconomic model of the boiler is
developed based on second law of thermodynamics. Performance analyses, based on exergoeconomic
criteria, are done for the boiler used in a 55 MW power plant. An example has been used to illustrate the
methodology . Effect of air pre- heater temperature on the exergetic efficiency of the boiler system, unit
product cost of the boiler and unit product cost of air pre- heater have been shown in detail. Optimization
has been done for the boiler system as a trade off between the unit product cost of hot air and unit product
cost of the boiler system. The outcomes of this study provide a useful basis for boiler performance analysis
and improvement.

The rotating instability flow phenomenon is numerically studied earlier in the laststage of low p... more The rotating instability flow phenomenon is numerically studied earlier in the laststage of low pressure
model steam turbine operated at very low mass flow rate. This kind of instability imposes a major risk to
the mechanical integrity of last stage moving blades (LSMBs) in low-pressure (LP) steam turbines.Aim is to
predict correctly the unsteady flow phenomena and their effects. A Numerical analysis using a validated
unsteady non-linear time-domain CFD solver is performed. A computational study on two different selfdesigned
3D blade sections is subsequently carried out. These results show that a rotating instability in a
turbine blade configuration can be captured by 3D model also.In comparison to the many previous
investigations, the results suggest that the beginning and the development of rotating instabilities can also
occur without 3D and tip leakage flows, although the very accuracy is possible only when comparing the
experimental results with 3D solutions.

The influence of Approach angle of face milling cutter is investigated by conducting experiments ... more The influence of Approach angle of face milling cutter is investigated by conducting experiments with
different approach angles in order to evaluate the effect of approach angle on productivity. The cartridges
are designed, modeled and manufactured for having different approach angles when mounted on face
milling cutter. The cutting forces, surface finish are measured in order to evaluate the performance of the
cutter. The experiments are conducted on En31 steel material and optimized by using Taguchi technique.
Taguchi method, a powerful tool to design optimization for quality, is used to find the optimal cutting
parameters for milling operations. An orthogonal array signal to noise (S/N) ratio and analysis of variance
(ANOVA) are employed to investigate the cutting characteristics of EN 31 steel using tungsten carbide
cutting tools. In this paper, not only the optimal cutting parameters for face milling operation are obtained,
but also main cutting parameters that affect the cutting performance in machining operations can be found.

Aluminium silicon carbide metal matrix composite spur gear has low density, good strength to weig... more Aluminium silicon carbide metal matrix composite spur gear has low density, good strength to weight
ratio, excellent castability and corrosion resistance. During working, the root of the spur gear teeth is
subjected to stress concentration and crack initiation starts leading to failure of material. In the present
work, the effect of varying fillet radius on stress and strain at the root of spur gear is estimated. FEA
analysis is used for building the model for predicting the design parameters at varying fillet radii. This
paper demonstrates the effect of the fillet radius on design parameters of metal matrix composite made up
of Aluminium and Silicon Carbide to enhance its strength.