sumit dharmarao | Walchand Institute Of Technology, Solapur (original) (raw)

Papers by sumit dharmarao

This paper concentrates idea about importance of air filter in automobile engines, its influence ... more This paper concentrates idea about importance of air filter in automobile engines, its influence on engine performance. Paper also deals with general guidelines and procedure for selection of air filter in automobile. Air filter can be defined as fibrous material device used to remove unwanted subtended particles from air like dirt, dust, pollen & many other undesired things. Many times, it may contain chemical agents like Absorbent or catalysts to improve air quality eliminate odors and active gaseous.

Knowledge of material properties, production methods and manufacturing processes are each importa... more Knowledge of material properties, production methods and manufacturing processes are each important subject in the material science discipline. Material testing methods are standardized by several organizations, such as ASTM, ISO, ASM and DIN etc. Materials are tested and their mechanical properties are tabulated in handbooks. This project will explain a study conducted on how a certain number of carbon steels might be identified through the observation of the sparks projected when a specimen is held against a grinding wheel. There are many factors that can change the spark patterns that are projected, but the main goal of this project is to attempt to standardize a method of spark testing and how it is performed. The study was conducted on six different grades of carbon steels that are commonly used in manufacturing processes. A reference manual was created from the experimental data cataloguing the spark pictures. This manual can be used by students and potentially by machine shop...

The increasingly worldwide problem regarding rapid economy development and a relative shortage of... more The increasingly worldwide problem regarding rapid economy development and a relative shortage of energy, the internal combustion engine exhaust waste heat and environmental pollution has been more emphasized heavily recently. Higher depletion rate and increasing price of fossil fuels have motivated many researchers to harness energy from the waste heat from internal combustion engines, and thus improve the overall efficiency. Traditionally, only 30 to 35 percent of energy is being utilized to run the vehicles and accessories mounted on the engine and left amount of energy is wasted in various ways like in the form of exhaust and cooling of engine components resulting in to entropy rise and serious environmental pollution.This paper proposes and implements a waste heat recovery system using a thermoelectric generator (TEG) designed for four stroke I.C. engine. The system converts the waste heat from the exhaust manifold into electrical energy using a TEG. The experimental results de...

This paper deals with, the problems involved in two-wheel steering mechanism and how those can be... more This paper deals with, the problems involved in two-wheel steering mechanism and how those can be overcome by implementing four-wheel steering mechanism. India's terrain varies widely, a typically used two-wheel steering system is less stable than four-wheel steering system which is best equipped while dealing with it[1]. It advances its stability and control at higher speed, neutral steering, maneuverability, turning radius. In this paper efforts are made to make a cost effective and efficient mechanism of four-wheel steering using rack and pinion and an intermediate shaft. It allows the driver to change from two-wheel to four-wheel according to its requirement. https://journalnx.com/journal-article/20150777

Distillation is one of many processes available for water purification, and sunlight has heat ene... more Distillation is one of many processes available for water purification, and sunlight has heat energy that can be used to power that process. Sunlight has advantage of zero fuel cost but it available in attuned format so requires larger collector areas i.e. absorber surfaces due to this it becomes costlier equipment. It is misnomer that for distillation we need to boil water actually simply elevating its temperature, short of boiling will adequately increase the evaporation rate. In fact, although vigorous boiling hastens the distillation process it also can force unwanted residue into the distillate, defeating purification. To boil water with sunlight requires more costly apparatus than is needed to distill it little more slowly without boiling. Different levels of purification can be achieved with this equipment which can be used for sterilized water for medical uses. Purification of heavy water in dissolved salts differs from purification of water that has been dirtied by other ch...

although in many parts of India certain crops can be produced at certain period of year, the majo... more although in many parts of India certain crops can be produced at certain period of year, the major part of the produce such as cereals & other crops are seasonal. Food produced in one harvest period lasts only for few weeks. This which must be stored for gradual consumption until next harvest and seeds must be held for next season crops. Also the market value of any crop tends to rise during off season. Therefore it is important to minimize losses and prepare the food for long lasting storage. This paper consist of various requirement of storage of cereals as cereals covers larger part of diet, for proper storage includes needs study of various properties of grains of cereals. This study shows that proper drying is required for proper storage, the solar dryer development details are presented in the paper.

This paper deals with current practices of drying agricultural products in most of developing nat... more This paper deals with current practices of drying agricultural products in most of developing nations like India. It also try to coin the concept of utilization of Solar dryer at farm side. In a developing country like India, having the second largest population and agriculture as the source of income to nearly 60 % of the total population, post-harvest and storage loss is a major quandary, which needs to be addressed in due diligence. Many food preservation techniques like cold storage, drying, etc., have been evolved out over the years to tackle the above losses. The major constraint is that almost all the technologies are utilizing fossil fuel resources, which are depleting very fast and wise use of these precious resources are preferred for longterm energy sustainability. Therefore, sustainable methods for food preservation are the need of the hour. Solar drying is one of the best choices in this context. The effect of temperature to moisture contents against time and rate of dr...

Urban India generates 188,500 tons per day (68.8 million tons per year) of municipal solid waste ... more Urban India generates 188,500 tons per day (68.8 million tons per year) of municipal solid waste (MSW) at a per capita waste generation rate of 500 grams/person/day. Improper solid waste management deteriorates public health, degrades quality of life, and pollutes local air, water and land resources. It also causes global warming and climate change and impacts the entire planet. Improper waste management is also identified as a cause of 22 human diseases and results in numerous premature deaths every year. The composition of urban MSW in India is 51% organics, 17.5% recyclables (paper, plastic, metal, and glass) and 31 % of inerts. The moisture content of urban MSW is 47% and the average calorific value is 7.3 MJ/kg (1745 kcal/kg). The composition of MSW in the North, East, South and Western regions of the country varied between 50-57% of organics, 16-19% of recyclables, 28-31% of inerts and 45-51% of moisture. The calorific value of the waste varied between 6.8-9.8 MJ/kg (1,620-2,3...

Gate valves are used when a straight-line flow of fluid and minimum restriction is desired. Gate ... more Gate valves are used when a straight-line flow of fluid and minimum restriction is desired. Gate valves are so named because the part that either stops or allows flow of fluid through the valve acts somewhat like the opening or closing of a gate and is called, appropriately, the gate. The objective of this paper to perform a stress analysis of the critical component of Gate Valve. The critical components in the Gate Valve are Body, Gate Stem, and slab gate. This paper comprises Finite element analysis of Gate Valve. A model of each element of Gate Valve is developed in CATIA V5R17, and analyzed in ANSYS Gate valve stress analysis is done by FEM using ANSYS and validation is supported by stress analysis using classical theory of mechanics. Finally, the result obtained from FEM software and classical analytical theory are compared. KEY WORDS: Gate Valve, Gate Stem, slab gate. INTRODUCTION A Gate Valve, or Sluice Valve, as it is sometimes known, is a valve that opens by lifting a round...

International Conference on Recent Trends in Mechanical Engineering, 2019

This paper deals with the importance of ergonomics in design of driving chair especially for the ... more This paper deals with the importance of ergonomics in design of driving chair especially for the individuals who have body dimensions other than the average range. Ergonomic principles are highly significant in any product, equipment and in work place especially as most of them are driven by muscle powers or coming into physical contact. From the business point of view also it’s a key to become a dominating among the close competitors in the market. It not only makes the product a pleasurable but also better and reproducible result. This paper also focusses the relation between anthropometric data & ergonomically design of some products.

IJESC, 2017

This paper deals with current practices of drying agricultural products in most of developing nat... more This paper deals with current practices of drying agricultural products in most of developing nations like India. It also try to coin the concept of utilization of Solar dryer at farm side. In a developing country like India, having the second largest population and agriculture as the source of income to nearly 60 % of the total population, post-harvest and storage loss is a major quandary, which needs to be addressed in due diligence. Many food preservation techniques like cold storage, drying, etc., have been evolved out over the years to tackle the above losses. The major constraint is that almost all the technologies are utilizing fossil fuel resources, which are depleting very fast and wise use of these precious resources are preferred for long-term energy sustainability. Therefore, sustainable methods for food preservation are the need of the hour. Solar drying is one of the best choices in this context. The effect of temperature to moisture contents against time and rate of drying are studied & discussed in this paper.

— Distillation is one of many processes available for water purification, and sunlight has heat e... more — Distillation is one of many processes available for water purification, and sunlight has heat energy that can be used to power that process. Sunlight has advantage of zero fuel cost but it available in attuned format so requires larger collector areas i.e. absorber surfaces due to this it becomes costlier equipment. It is misnomer that for distillation we need to boil water actually simply elevating its temperature, short of boiling will adequately increase the evaporation rate. In fact, although vigorous boiling hastens the distillation process it also can force unwanted residue into the distillate, defeating purification. To boil water with sunlight requires more costly apparatus than is needed to distill it little more slowly without boiling. Different levels of purification can be achieved with this equipment which can be used for sterilized water for medical uses. Purification of heavy water in dissolved salts differs from purification of water that has been dirtied by other chemicals processes.

— This paper helps to correlate unique characteristics of special animals with the science involv... more — This paper helps to correlate unique characteristics of special animals with the science involved in it and applying the same principles to solve our technical problems for better performance of machines & that too at low cost. This paper focuses at stripes of zebra, scientific cause of it & checking the possibility for application of zebra pattern for better dissipation of heat generated within electronic equipments which results in satisfactory output of machines & equipments.

International Conference on Recent Trends in Mechanical Engineering, 2019

IJESC, 2017

This paper deals with current practices of drying agricultural products in most of developing nat... more This paper deals with current practices of drying agricultural products in most of developing nations like India. It also try to coin the concept of utilization of Solar dryer at farm side. In a developing country like India, having the second largest population and agriculture as the source of income to nearly 60 % of the total population, post-harvest and storage loss is a major quandary, which needs to be addressed in due diligence. Many food preservation techniques like cold storage, drying, etc., have been evolved out over the years to tackle the above losses. The major constraint is that almost all the technologies are utilizing fossil fuel resources, which are depleting very fast and wise use of these precious resources are preferred for long-term energy sustainability. Therefore, sustainable methods for food preservation are the need of the hour. Solar drying is one of the best choices in this context. The effect of temperature to moisture contents against time and rate of drying are studied & discussed in this paper.

The main intention of my dissertation work is to reduce post-harvest losses occur in our India. A... more The main intention of my dissertation work is to reduce post-harvest losses occur in our India. As per the report published by Food Agricultural Organization (FAO) of united states 32% of all food produced in the world has been wasted. 19,40,502 MT of food grain worth crores of rupees were wasted in India in last few years. As per the report published by NGO 'Bhook' every night 20 crores of Indians sleep without food. India is second highest population and 24% population below poverty which contributes worlds 33%. Out of these losses post-harvest losses are a major one. Post-harvest losses mean losses occurred between the harvesting of crops to consumption by consumers. My efforts are applied for designing A Solar Dryer for Post Harvesting Treatment of Cereals like Wheat & rice by considering the local geometry of particular places (Solapur, Maharashtra, India & Karjat, Raigad, Maharashtra, India). Also, the provision of thermal energy storage which can be used during a night which will eliminate the need for auxiliary energy sources like biogas, electricity, and fuel which adds a cost of drying; it will also help to reduce a time required for drying.