MIT-World Peace University (MIT-WPU) is a top educational institute located in Pune, India. It is recognized within&nbsp;UGC under Government of Maharashtra Act No. XXXV 2017.&nbsp;

It is part of the MIT group of institutions (established in 1983) which covers 10+ campuses across India and has more than 50,000+ students enrolled across various disciplines at a given point of time. The institute houses 15 schools ranging from Engineering &amp; Technology, Design, Pharmacy, Commerce, Governance among others. It offers undergraduate, postgraduate and PhD programs among different disciplines.&nbsp;

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MIT World Peace University

School of Mechanical Engineering

World University root node

Engineering and Technology

Advances In Mechanical Engineering Techniques

AUTOMATION OF WELDING PROCESS BY USING CNC

In the present paper CFD based investigation has been reported in order to study the effect of change in geometry\r\nof canopy on velocity and temperature on inside of canopy. It has been observed that there is significant change\r\ntemperature air flow, velocity inside the canopy. As the performance of fan is directly dependent on mass flow output. So\r\nthere should be a moderate velocity and temperature profile as all these parameters are co-related. In order to predict the air\r\nflow at inlet and output and temperature in canopy, analysis is done using a 3-D CFD software and to create a general idea\r\nabout a canopy, a model is created using a modelling software. Diesel engine generator sets in heavy industry plants and\r\nresidential/official buildings can cause serious noise problems. Diesel generators are used very commonly in shops, offices\r\nand in industry during power shut downs. The work is aimed at optimization of noise and thermal parameters of generator\r\nset. This paper focuses on air flow through canopy. Behaviour of air inside the canopy moving over inside parts of genset.\r\nEffect of air on inside cooling of canopy and thermal analysis of canopy done in this paper. Aim of this work, thermal\r\noptimization of canopy and effect of various design on overall parameters of genset. For such work position of baffle\r\nplate,louver angle with various design simulated in 3-D CFD software. Their results discussed in this paper. By using these\r\nsimulation work generator set can be examined and it gives way for investigation the different parts of genset.

International Journal of Mechanical and Production Engineering Research and Development (IJMPERD )

Thermal Optimization of Genset Canopy Using CFD

Engineering changes in product are unavoidable and necessary to guarantee a high quality end-product. Focus should therefore to the reduction of costs per change rather than reduction in frequency of change. This will lead to lower overall product development costs and reduced time to market. Hence, the improvement of engineering change will most likely contribute to improve overall product life cycle management. Managing engineering changes across supply chain and disciplines within a single company is a non-trivial task. Thus, every time when change related information crosses company borders, translation and interpretation of data is needed. There is a need for individual ECM processes to communicate across the supply chain using a 'universal language' for ECM. This paper is providing focus to ensure quality of the modified data during change management and also to have good level of discipline across the supply chain.

International Journal of Product Lifecycle Management

Implementing Engineering Change Management Through Product Life Cycle Management in Automotive Field

HFC-161 is being considered as an alternative to HCFC-22 in air conditioner. Thermo physical properties of HFC-161 are closer to HCFC-22. The flammability of HFC-161 needs to be addressed while using in air conditioner. A typical split packaged air conditioner with nominal cooling capacity of 5.2 kW that was originally designed for HCFC-22 was selected for performance evaluation in psychrometric chamber. Test conditions considered are as per IS 1391 part 1. Air conditioner performance was evaluated for capacity rating test conditions. Initially, baseline performance was established with HCFC-22. Then HFC-161 was used as drop-in for HCFC-22. Under drop-in test, the cooling capacity of HFC-161 was 10.1 % lower than that of HCFC-22 and EER was 19.7% higher compared to HCFC-22. The optimized HFC-161 charge under drop-in was 385g. This was 51% of HCFC-22. In order to achieve equivalent cooling capacity of HCFC-22, modified capillary was considered in another test. In this test, HFC-161 gave 7.1% lower cooling capacity and 17.7% higher EER than that of HCFC-22.

Refrigeration Science and Technology

Performance assessment of air conditioner using HFC-161

HC-290 has been successfully experimented as replacement for HCFC-22 air conditioners by many researchers especially in last decade. The performance data of split air conditioner using HC-290 that operated on constant speed compressor is available in the literature. An EN 378 has been applied to a few of these air conditioning systems. In this paper, the performance of split air conditioner using HC-290 that operated on DC-inverter compressor has been assessed and compared with HCFC-22. In later part of this paper, the performance of split air conditioners that operated on constant speed compressor and DC-inverter compressor is compared. A typical split packaged air conditioner with nominal cooling capacity of 3.5 kW that was originally designed for HCFC-22 was selected for experimental performance evaluation using HC-290 as a substitute to HCFC-22. The performance parameters considered are cooling capacity, EER, power input, and discharge temperature. A well-equipped psychrometric test chamber facility consisting two equal size rooms (indoor room and outdoor room) was used for this purpose. The air conditions maintained were as per Indian standards IS 1391 part 1. Initially the performance of HC-290 has been compared with HCFC-22 at Capacity Rating Test conditions as per IS 1391 standard. Further, HC-290 performance was assessed at high ambient conditions. These conditions are closer to the conditions prescribed in SASO standards. At capacity rating conditions. HC-290 gave 13.4% lower cooling capacity and 14.4 % higher EER compared to HCFC-22. At high ambient conditions HC-290 cooling capacity and EER were degraded to 61.7% and 54.6% respectively than that of baseline test with HCFC-22.

Experimental performance assessment of DC-inverter operated split packaged air conditioner using HC-290

The sun is an outstanding energy source for mankind. It is clean and comes to the earth for free. There is no need to drill and refine it or mine it out of the ground. The devices needed to gather its energy are simple, quiet and non-polluting. International environment protection initiatives have led to the intensification of research efforts on development of ozone and global warming safe refrigeration technology. In recent years, increasing attention is being given to the use of waste heat and solar energy in energizing refrigerating systems. Solar powered refrigeration and air conditioning have been very attractive during the last twenty years, since the availability of sunshine and the need for refrigeration both reach maximum levels in the same season. The adsorption refrigeration is based on the evaporation and condensation of a refrigerant combined with adsorption. The paper describes the design and fabrication of the experimental chamber, the experimental procedure and its feasibility towards development of an alternative eco friendly refrigeration cycle for replacement of chlorofluorocarbons. The objective of this paper is to establish an alternative eco-friendly refrigeration cycle for producing a temperature usually encountered in a conventional refrigerator. By manufacturing such type of refrigerator adds new dimension to the world of refrigeration. This refrigerator gives some amount of relief to the refrigeration world by making it independent of electric power supply and zero running cost.

International Journal of Innovative Research in Science, Engineering and Technology

Design and development of intermittent solid adsorption refrigeration system running on solar energy

Engine cooling fans are an essential component of the engine cooling system which is used to dissipate the excess heat generated by the combustion of fuels inside the engine. This project consists of designing the fan and analyzing it for its strength in structure using the Finite Element Method (FEM) approach and the flow of air around it using Computational Fluid Dynamics (CFD) approach. An important factor for successful fan design is to fully understand the complex flow field within the fan. This understanding enables optimization. Computational Fluid Dynamics (CFD) techniques can be beneficial to provide insight to the fan design process. Not only can velocity vectors and pressure contours be computed, CFD can also provide critical information such as efficiency, flow uniformity at the exit, circulation or separation zones, locations of potential cavitations and noise generation. The design of the fan was conducted in phases, starting with calculating all the required dimensions followed by analytical models to prove the concept. Accordingly, finite element analysis and computational fluid dynamics were performed on simulation models. The overall shape of the first iteration was conceptualized with the aid of the above guidelines. The results obtained from the analytical studies indicated a potential for a successful design that met most of the above outlined parameters.