Kadir Aydin | Çukurova University (original) (raw)

Papers by Kadir Aydin

Mühendis ve makina, 2001

Bu çalışmada, Adana ilinin değişik yerleşim bölgelerinde günün çeşitli saatlerinde en yüksek ve e... more Bu çalışmada, Adana ilinin değişik yerleşim bölgelerinde günün çeşitli saatlerinde en yüksek ve en düşük gürültü düzeyleri trafik yoğunluğuna, kompozisyonuna, araçlann hız ve yüklenmelerine, üzerinde seyrettikleri yolun özelliklerine ve hava koşullarına bağlı olarak ölçülmüş olup, ölçülen değerlerin Gürültü Kontrol Yönetmeliği'ndeki sınır değerlerle karşılaştırılması yapılmıştır. Elde edilen sonuçlardan kentin ölçüm yapılan belirli bölümlerinde trafik kaynaklı ciddi bir gürültü kirliliği sorununun bulunduğu ve trafik yoğunluğu ile orantılı olarak değişen alt ve üst gürültü kirliliği sınır değerlerini yakalamak için alınması gerekli önlemler belirtilmiştir.In this study, lowest and highest noise levels related to the traffic density, composition, speed and load, road characteristics and weather conditions are measured at the different regions of Adana province within different times of the day and compared to the limit levels in the Turkish Noise Control Regulations. The measurement results state that there is a serious noise pollution problem due to traffic and the precautions are described to remain under the noise pollution limit levels which are proportional to the traffic density

Proceedings of ESDA2002: 6th Biennial Conference on Engineering Systems Design and Analysis, 2002

Numerical simulations of steady laminar blood flow in the neighborhoods of two consecutive constr... more Numerical simulations of steady laminar blood flow in the neighborhoods of two consecutive constructions in a vascular tube were performed for a better understanding of artery blood flow patterns and their possible role in atherosclerosis formation. In this study ...

Applied Mechanics and Materials, 2014

In this study, effect of anisole additive into the diesel fuel on performance and emission parame... more In this study, effect of anisole additive into the diesel fuel on performance and emission parameters of diesel engines was investigated. Instead of structural changes which are more difficult and expensive, development of fuel technologies is preferred to provide reduction on exhaust gas emissions which are harmful to environment and human health. Therefore, in this experimental study, anisole was used as additive into diesel fuel with the volumetric ratio of 1,5%, 3% and 5%. The performance characteristics and exhaust emissions of a four cylinder, four stroke, naturally aspirated, water cooled, direct injection compression ignition engine fueled with modified fuels were analyzed. Engine was subjected constant speed, full load conditions during tests. Engine power, torque, specific fuel consumption, carbon monoxide, nitrogen oxide and carbon dioxide emissions were measured and results were evaluated. Changes in performance parameters were negligible for all ratios of modified fuels except specific fuel consumption. Finally, while carbon monoxide gas emissions were increased with anisole additive, carbon dioxide and nitrogen oxide gas emissions were decreased.

Çukurova Üniversitesi Mühendislik Fakültesi Dergisi, Aug 16, 2021

International journal of automotive science and technology, Dec 31, 2022

In the current study, a data processing and reporting system was established to a smart city bus.... more In the current study, a data processing and reporting system was established to a smart city bus. With the application of this system, the vehicle had capability of processing, sending and reporting data in the vehicle as requested by the driver, owner and/or fleet management center via internet.

Passenger counting systems can help to fleet managers to plan route of city buses effectively by ... more Passenger counting systems can help to fleet managers to plan route of city buses effectively by supplying the information of number of passenger inside a bus. By combining passenger counting system with a GPS system, location of the bus and number of passenger in the vehicle can be monitored online and an effective plan of city transportation can be done. With this system estimated time of arrival for the next station with the rate of fullness can be calculated and this information can be supplied to the fleet management center.

Advances in Automobile Engineering, 2016

No.2918 Turkish Highway Traffic Act has been the reference legislation for traffic accidents in T... more No.2918 Turkish Highway Traffic Act has been the reference legislation for traffic accidents in Turkey since 1983. Although this act consists of several explanations and definitions, it has still deficiencies especially in defining fault rates which are vital for traffic accident analyses. Accident experts determine fault rates mostly according to their initiatives without conducting scientific analyses on accidents due to inadequate quantitative instructions on fault rates in the act. Speed analyses of accident involvements play an important role in accident investigations. A more comprehensive parameter, Energy Equivalent Speed, may be defined to explain dissipation and severity of deformation energy and crush amounts formed on vehicles which also give hint about fault rates. In this study, accessible data were collected from a sample accident scene (police reports, skid marks, deformation situations, crush depths etc.) and used as inputs for an accident reconstruction software called "vCrash" which is able to simulate the accident scene in 2D and 3D. Energy equivalent speed calculations were achieved using 784 parameters with a prediction error. Multi-layer Feed Forward Neural Network and Generalized Regression Neural Network models were utilized for estimation of energy equivalent speeds (speeds just before the collision, i.e., in case of absence of skid marks) based on using these parameters as teaching data for the models. It was aimed that, by benefiting from these neural network methods, necessity of using expensive simulation softwares for probable accidents in future may be avoided. In order to observe performance of the neural network models, standard error of estimates (mean square error) and multiple correlation coefficients were also analyzed using 5-fold cross validation on the dataset. It was observed that, in general, Multi-layer Feed Forward Neural Network model yielded better results for both energy equivalent speed and fault rate analyses. Based on simulation results (energy equivalent speeds and deformations) and assumption of a fault rate scale, fault rates were estimated on prediction models by assuming correspondence of every predetermined increment in energy equivalent speed of specific involvement to a specific increment in fault rate of the same involvement to put forward a scientific and systematic approach and compensate deficiencies in the act.

Applied Mechanics and Materials, Oct 1, 2015

Charging system is used to increase the charge density. Supercharging system suffers from fuel co... more Charging system is used to increase the charge density. Supercharging system suffers from fuel consumption penalty because of compressor powered by engine output. Turbocharging system uses wasted exhaust energy that means compressor powered by exhaust turbine but has a turbo lag problem. The electrically assisted turbocharger which can eliminate turbo lag problem and fuel consumption penalty is the topic of this paper. The purpose of this paper is to analyze the effect of electrically assisted turbocharger on diesel engine performance parameters. The AVL Boost software program was used to simulate the electrically assisted turbocharged diesel engine. Simulations results showed that electrically assisted turbocharger increases low end torque and improves fuel economy.

International Journal of Hydrogen Energy, Jul 1, 2018

Engineering Failure Analysis, Oct 1, 2023

EAI/Springer Innovations in Communication and Computing, 2019

With the application of a data processing and reporting system, the vehicle had capability of pro... more With the application of a data processing and reporting system, the vehicle had capability of processing, sending, and reporting data in the vehicle as requested by the driver, owner, and/or fleet management center via Internet. This data can be saved and monitored online by the fleet management center via Internet. By processing this data, performance of drivers of the fleet can also be evaluated.

European mechanical science, Jun 15, 2017

DergiPark (Istanbul University), Mar 20, 2021

Energy Sources, Part A: Recovery, Utilization, And Environmental Effects, Jun 10, 2020

Energy Sources, Part A: Recovery, Utilization, And Environmental Effects, Jul 26, 2012

An experimental study was conducted to evaluate the use of various blends of castor (Ricinus Comm... more An experimental study was conducted to evaluate the use of various blends of castor (Ricinus Communis) oil methyl ester with diesel fuel. Performance and exhaust emissions of castor oil biodiesel with diesel fuel in a commercial compression ignition engine were presented in this study. Biodiesel produced from castor oil was blended with diesel fuel at the volumetric ratios of 5%

International Journal of Hydrogen Energy, Jul 1, 2019

One of the primary aims of this experimental investigation is to examine hydroxy-gas enrichment e... more One of the primary aims of this experimental investigation is to examine hydroxy-gas enrichment effects on environmentally friendly but performance-reducing alternative fuels such as ethanol and biodiesel. Hydroxy gas is a product of the pure water electrolysis method. Entire HHO system has integrated into engine test rig for this purpose. Two different biodiesohol fuel blend prepared and named by their volumetric compositions. Biodiesohol used to describe biodiesel, ethanol and standard diesel blends. Specific fuel properties are measured and ensured to be in EN590 and EN14214 standards. Experiments were conducted on a single cylinder diesel engine which was fuelled with diesel-biodieselethanol fuel blends those enriched by 1 L per minute HHO gas during the entire tests. All of the experiments performed under full load condition within the range of 1200e3200 rpm engine speed. From the view of performance; brake power, brake specific fuel consumption and thermal efficiency results discussed. Besides, carbon monoxide and nitrogen oxides results measured and presented as exhaust emission. Standard diesel fuel outputs determined as a reference line to analyze the changes. A number of studies have been conducted with fuels used in this experimental study and their mixture in different ratios as well, but an examination of the HHO addition to biodiesel is performed for the first time in this research area of the literature.

Aircraft Engineering and Aerospace Technology, Jun 10, 2021

Purpose The endurance of small unmanned air vehicles (UAVs) is directly associated with the energ... more Purpose The endurance of small unmanned air vehicles (UAVs) is directly associated with the energy density of the propulsion system used. As the batteries commonly used in small UAVs have a relatively low energy density, they are not sufficient for long-term endurance tasks. The purpose of this paper is to offer a solution to increase the endurance of a concept small UAV with combination of different power sources. The design, construction and ground tests of fuel cell-powered hybrid propulsion systems are presented in this paper. Design/methodology/approach The power requirements of a concept UAV were calculated according to aerodynamic calculations and then, hybrid propulsion system sources are determined. The hybrid system consists of a 100 W scale proton-exchange membrane (PEM) type fuel cell stack, lithium-polymer battery, solar cells and power management system (PMS). Subsequently, this hybrid power system was integrated with the new design of PMS and then series of ground tests were carried out. Findings This experimental study proved that it is theoretically possible to obtain an endurance of around 3 h for concept UAV with the proposed hybrid system. Practical implications The research study shows that fuel cell-based hybrid propulsion system with the proposed PMS can be widely used to obtain extended endurance in small UAVs. Originality/value A hybrid propulsion system with a novel PMS unit is proposed for small UAVs and the ground tests were implemented.