Nirajkumar Mehta

ITM (SLS) Baroda University · Mechanical Engineering

Furnaces are most commonly used for melting of ferrous metals and its alloy materials. Induction furnaces use electrical power so that they are more advantageous as no fuel is required. It is a very critical problem to find life span of induction melting furnace wall under thermal fatigue conditions. The life cycle of induction furnace refractory w...

Heat transfer is necessary to enhance the efficiency and life of any compressor. Convection is the frequent used method for natural cooling purpose due to its higher heat transfer rate. Fin is an area which extends from a surface to increase the rate of heat transfer by convection. Experiment is carried out on fin of reciprocating air compressor ha...

Furnaces are most commonly used for melting of ferrous metals and its alloy materials. Induction furnaces use electrical power so that they are more advantageous as no fuel is required. It is a very critical problem to find life span of induction melting furnace wall under thermal fatigue conditions. The life cycle of induction furnace refractory w...

AJM has become a very useful method for micro machining. It has enormous number of distinct advantages over the other non-traditional cutting and drilling methods, that include high machining versatility and minimum stresses on the substrate. This abrasive jet machining project is used for drilling holes on brittle materials like glass. Holes can b...

Furnaces are most commonly used for melting of Iron and its various alloy materials. Induction furnaces are using electric power supply so they are more beneficial as no fuel is required. It is an extremely critical to find life span or life cycle of Induction Melting Furnace Wall under thermal load change conditions. The low cycle thermal fatigue...

Furnaces are most commonly used for melting of Ferrous Metals and its alloy materials. Induction furnaces use Electrical Power so that they are more advantageous as no fuel is required. It is a very critical problem to find life span of Induction Melting Furnace Wall under thermal load variation. The life cycle of induction furnace refractory wall...

Furnaces are used for melting many materials like cast iron and steel for casting process. In this research paper, we had done Finite Difference Modelling of Induction melting furnace refractory wall made of alumina ramming mass using cylindrical coordinate system. We have divided actual geometry of furnace refractory wall into 14 elements and 24 n...

The Research area of engineering of the electronic system cooling is having wide application nowadays. Therefore, in the present work, Aluminum is chosen as the material for the heat sink. In the present work effect of various shapes of cross sections of fins on the mother board is studied keeping the inlet air velocity, temperature of the ambient...

Today's world requires speed on each and every field. Hence rapidness and quick working is the most important. Nowadays for achieving rapidness, various machines are manufactured by man. The engineer inconstantly conformed to the challenges of bringing ideas and design in to reality. New machines and techniques are being developed continuously to m...

Heat exchangers are the essential accessories designed to provide highest heat transfer inside the minimal area feasible. Heat exchangers are always regarded important for research in the field of thermal engineering. Nano particles like suspensions of ZnO, CuO, Fe3O4, TiO2, and Al2O3 in water is the new revolutionary solution to increase the effec...

Induction furnaces can also be labeled largely into three classes: (1) Core-type low-frequency induction furnaces, (2) core-less high-frequency induction furnaces, and (3) core-less low-frequency induction furnaces. All induction furnaces operate on the principle of inducing an electric present into the metallic to be heated. With the aid of supply...

Heat transfer is a very main phenomenon within the investigation of any inside combustion engine. Thermal efficiency of interior combustion engine is immediately linked with heat transfer. Consequently, heat transfer enhancement can make stronger thermal efficiency of inner combustion engine. In this case, we had regarded air cooled IC Engine. Desi...

Sun oriented Energy Technology has a critical part to play in the present Energy and Environment crises. Sunlight based Concentrator Technology has great potential for different applications, including power age furthermore, process heating applications. We have developed a solar heating furnace. The a structure that uses concentrated solar power t...

This paper deals with a detailed literature survey related to solar heating furnace. It also incorporates its applications and temperature and stress analysis of furnaces. A solar heating furnace is a structure that uses concentrated solar power to produce high temperature, usually for industry where the high temperature required for the processes....

This paper is a review of thermal analysis and testing of different refractory materials.Refractories are ceramic based materials that can withstand unusually high heat as well as abrasion and the corrosive effect of acid and alkalis. The Purpose of Refractories are in furnace, stills for the cracking of petroleum, electrolytic cells for aluminium...

In this paper a detailed literature survey is done for the mathematically advanced computer heat transfer models for the analysis of cylindrical and spherical induction furnaces. Handling of furnace unit is not a simple issue. By some research paper referred we are founded issues of cylindrical and spherical furnaces to require make mathematical mo...

Furnaces are most important as it is constantly used for melting of materials. Induction furnaces are more worthwhile as no fuel is required. It is a main issue to go looking out life cycle of Induction Melting Furnace Wall under load variant. The induction melting furnace wall is made-up of Silica Ramming Mass, Alumina Ramming Mass, Magnesia Rammi...

It is always highly profitable to apply Automated Guided Veh icles for advanced material handling as Automated Guided Vehicles are functional mob ile robots which are typically used for automated material management between desired points with the fixed speeds at work space. The purpose to write this paper is to discuss many extensive efforts made...

Furnaces are most almost continuously used for melting of materials. Induction furnaces are more invaluable as no fuel is required. It is a difficulty to search out life cycle of Induction Melting Furnace Wall beneath load variant. The induction melting furnace wall is made-up of zirconia which is one variety of refractory material. The failure hap...

Cryogenic storage tank is a device for storage and gasification of cryogenic working fluid. Cryogenic storage tank can reduce the cryogenic fluid, safety, suffer against high pressure and high-rate fueling requirements. Usage of guide tube, two side insulation and different insulation are latest research scope on cryogenic tank. This review paper i...

In automobile engine connecting rod is a high volume production, critical component,Connecting rod is the Central link between the piston and the crank.We all know that the purpose of the connecting rod is to transfer the reciprocating motion of the piston into rotary motion of the crankshaft. &transmitting the thrust of the piston to the crankshaf...

Heat Exchanger is a device used intensively for heat transfer form fluid. Thus all various type of heat exchanger .Our concentration is on shell and tube type heat exchanger .We will design the heat exchanger by bell delware method to increase heat transfer by using various material and geometries. Shell-and-tube heat exchangers are widely used in...

Furnaces are most commonly used for melting of materials. Induction furnaces are more beneficial as no fuel is required. It is a problem to find life cycle of Induction Melting Furnace Wall under load variation. The induction melting furnace wall is made of magnesia ramming mass which is one kind of refractory material. The failure occurs due to cy...

Furnaces are useful for melting different materials for casting process. In this research paper, we had done advanced heat transfer analysis of induction furnace wall made of silica ramming mass using explicit finite difference method. We have divided actual geometry of furnace refractory wall into 14 elements and 24 nodes. We have derived explicit...

Furnaces are most commonly used for melting of materials. Induction furnaces are more beneficial as no fuel is required. It is a problem to find life cycle of Induction Melting Furnace Wall under load variation. The induction melting furnace wall is made of alumina ramming mass which is one kind of refractory material. The failure occurs due to cyc...

Furnaces are useful for melting different materials for casting process. In this research paper, we had done advanced heat transfer analysis of induction furnace wall made of magnesia ramming mass using explicit finite difference method. We have divided actual geometry of furnace refractory wall into 14 elements and 24 nodes. We have derived explic...

Furnaces are most commonly used for melting of materials. Induction furnaces are more beneficial as no fuel is required. It is a problem to find life span of Induction Melting Furnace Wall under load variation. The induction melting furnace wall is made of silica ramming mass which is one kind of refractory material. The failure occurs due to cycli...

Furnaces are useful for melting different materials for casting process. In this research paper, we had done advanced heat transfer analysis of induction furnace wall made of alumina ramming mass using explicit finite difference method. We have divided actual geometry of furnace refractory wall into 14 elements and 24 nodes. We have derived explici...

To reduce electricity demand to cooling in summer is possible by using Ejector refrigeration system. Industrial Waste heat, Solar energy, other source is used for generator in Ejector Refrigeration System (ERS).Today Researcher is trying to develop better configuration and design of ERS which has higher cooling capacity and higher C.O.P. To design...

Furnaces are useful for melting different materials for casting process. In this research paper, we had done advanced heat transfer analysis of induction furnace wall made of zirconia using explicit finite difference method. We have divided actual geometry of furnace refractory wall into 14 elements and 24 nodes. We have derived explicit finite dif...

In the present study, recent research is considered about new generation refrigerant R-1234yf and R-1234ze (E). Chlorofluorocarbons (CFCs) had been phased out under the Montreal Protocol; CFC alternative refrigerants are searching for based on the condition of no chlorine atoms because of zero ODP. It seemed that conversion from CFC refrigerant to...

Furnaces are most commonly used for melting of materials. Induction furnaces are more beneficial as no fuel is required. It is a problem to find life of Induction Melting Furnace wall under thermal fatigue. The induction melting furnace wall is made of Magnesia ramming mass which is one kind of refractory material. The failure occurs due to cyclic...

It is easy to solve simple problems of Heat Transfer with Analytical Methods but for Complicated Problems, we have to go for Numerical Methods. Here, we are solving a Multi-Dimensional Heat Transfer Problem, which includes application of Implicit – Explicit Method for Calculation of Temperature Distribution. Computer Program is also made for the so...

Furnaces are most commonlyusedfor melting of materials. Induction furnaces are morebeneficial as no fuel is required. It is a problem to find life of Induction Melting Furnace wall under thermal fatigue. The induction melting furnace wall is made of Zirconia which is one kind of refractory material. The failure occurs due to cyclic thermal stresses...

Today crisis in convection fuel, non-convectional technics should be used for power generation.In recent years, progress on solar cooling system has increased as nowadays. Therefore, this review paper focuses in solar cooling system using ejector, ejector Configuration for Solar Cooling System, CFD of ejector, ejector design rules, behavior of ejec...

In early days, fuel fired furnaces were used for material melting in different casting industries like Cupola Furnace. But from 1930 onwards, Induction Furnaces had come in the Casting Industries. There are number of Improvements in Insulation, melting time, chemical composition, lifespan and Efficiency. There is a lot of research and analysis is g...

Furnace is a term used to identify a closed space where heat is applied to a body in order to raise its temperature. An induction furnace is an electrically run furnace used for melting and heating (heat treatment) metals. Alumina ramming mass is used as refractory material to prevent losses. Proper optimization is also needed in thickness. Increas...

The Condenser is a heat transferring device. It is used to remove heat from hot refrigerant vapour. Using air cooling method condenser changes the vapour to a liquid. Convection mode of heat transfer plays very important deciding factor transferring heat from condenser tube to atmosphere. This paper presents simulation results of hot-wall condenser...

now a day, products can be produced by modern technology, which uses computer software, hardware and firm ware in industries. It is needed to use CNC lathe machine to get more accurate dimensions and irregular shape. So, CNC machines are becoming more and more important in modernized industrialization. There are many conventional lathe machines in...

Now a days, products can be produced by modern technology, which uses computer software, hardware and firm ware in industries. It is needed to use CNC lathe machine to get more accurate dimensions and irregular shape. So, CNC machines are becoming more and more important in modernized industrialization. There are many conventional lathe machines in...

Furnaces are most commonly used for melting of materials. Induction furnaces are more beneficial as no fuel is required. It is a problem to find life of Induction Melting Furnace wall under thermal fatigue. The induction melting furnace wall is made of alumina ramming mass which is one kind of refractory material. The failure occurs due to cyclic t...

An induction furnace is an electrically run furnace used for melting & heating (heat treatment) metals. Induction heating is widely used in today's industry, in operations such as metal hardening, preheating for forging operations. The aim of present work study is to prepare a finite element model of induction furnace. The result of finite element...

There are a wide range of physical defects which occur during metal forming processes. These defects, which may occur on the surface or be internal, are undesirable not only because of the surface appearance, but because they may adversely affect the strength, formability and other manufacturing characteristics of the material. Some physical defect...

This paper presents results of finite element analysis of induction heating problems considering temperature dependence of material characteristics. In this analysis, we have used the three-dimensional finite element method in order to correctly express induction heating coil's shapes and to make clear its effects on temperature distributions. The...

Furnaces are most commonly used for melting of materials. Induction furnaces are more beneficial as no fuel is required. It is a problem to find life of Induction Melting Furnace wall under thermal fatigue. The induction melting furnace wall is made of silica ramming mass which is one kind of refractory material. The failure occurs due to cyclic th...

A heat transfer analysis was made in earlier days by using different analytical methods; these methods are quite complicated in terms of size & methods. In today's scenario the different methods are used for analysis of thermal system or thermal components by using Numerical method which is very useful for analysis & results oriented with accuracy....

With the entry of Computer for Analysis, Uses of Numerical Methods are increased. Finite Element Analysis, Finite Difference Analysis and Finite Volume Method come into the picture. Then with the combination of Numerical Methods, Computer Programming and Fluid Dynamics CFD Analysis came into existence which is very useful in multi-disciplinary appl...

Hydro power is the top most renewable energy source and micro hydro power plant is one of the best solutions for energy crisis in remote, rural and hilly areas, where electricity is not available. In micro hydro power plants cost is equally important criteria as the efficiency. The centrifugal pumps can be used as the hydraulic turbine(PAT) as it h...