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Fatigue Life of Piston

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Fatigue Life of Piston
Seminar Report
On
Theoretical Analysis for Controlling the System Temperature by using phase change material (PCM)

Presented by
Mr.Ajinkya R. Patil

INDEX 1. INTRODUCTION………………………………………………………...1 2. STATE OF THE ART OF PCM…………………………………………2 3.1 PCM CHARACTERISTICS………………………………………...2 3.2 PCM CLASSIFICATION…………………………………………...5 3.3 PCM PROPERTIES………………………………………………...3 3. THERMOPHYSICAL PROPERTIES DETERMINATION…………5 4.4 LONG TERM STABILITY…………………………………………5 4.5 STABILITY OF PCM CONTAINER SYSTEM………………......5 4.6 CORROSION OF THE MATERIAL………………………………5 4.7 PHASE SEGREGATION AND SUBCOOLING………………….H 4.8 FIRE RETARDATION OF PCM………………………………….K 4. ENCAPSULATION OF THE MATERIAL……………………………K 5. STORAGE CAPACITY AND THERMODYNAMIC PROPERTIES.K 6. SYSTEM APLICATIONS……………………………………………….K 7.9 FOR MASS CONCRETE BLOCK…………………………………K 7.10 IN REFRIGERATION PLANT……………………………………..K 7.11 FOR BRICK WALL………………………………………………….K 7.12 FOR COLD STOREGE OF PERISHEBLE PRODUCT…………..K 7. CONCLUSION……………………………………………………………..K 8. REFERENCES……………………………………………………………..K

1. Introduction: Demand of heat energy increased greatly in different fields of engineering during the last decade. Cooling and heating demand has already been increasing due to the evolving comfort expectations and technological development around the world. Climate change has brought additional challenges for cooling and heating systems designers. Efficient and economical technology that can be used to store large amounts of heat or cold in a definite volume is the subject of research for a long time. Thermal storage plays an important role in building energy conservation, which is greatly assisted by the incorporation of latent heat storage in building products. Devices which store heat during peak power operation and release the same during reduced power operation. Phase change material is one of the thermal

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    References: [1] Zhou YP, Wu JY, Wang RZ, Shiochi S. Energy simulation in the variable refrigerant flow air-conditioning system under cooling conditions. Energy Build 2007;39:212–20. [2] Wu Chen, Xingxi Zhou, Shiming Deng. Development of control method and dynamic model for multi-evaporator air conditioners (MEAC). Energy Convers Manage 2005;46:451–65. [3] Georges B, Winandy E, Lebrun J, Xia J. Experimental analysis of the performances of variable refrigerant flow systems. Build Serv Eng Res Technol 2004;25:17–23. [4] Brodrick James, Roth Kurt W, Goetzler William. Variable flow and volume refrigerant system. ASHRAE J 2004;46:S164. [5] Qi Qi, Deng Shiming. Multivariable control of indoor air temperature and humidity in a direct expansion (DX) air conditioning (A/C) system. Build Environ 2009;44:1659–67. [6] Liang Xia, Chan MY, Shiming Deng. Development of a method for calculating steady-state equipment sensible heat ratio of direct expansion air conditioning units. Appl Energy 2008;85:1198–207. [7] Li Zheng, Deng Shiming. An experimental study on the inherent operational characteristics of a direct expansion (DX) air conditioning (A/C) unit. Build Environ 2007;42:1–10. [8] Chen Wu, Deng Shiming. Development of a dynamic model for a DX VAV air conditioning system. Energy Convers Manage 2006;47:2900–24. [9] Nasution Henry, Wan Hassan Mat Nawi. Potential electricity savings by variable speed control of compressor for air conditioning systems. Clean Technol Environ Policy 2006;8:105–11. [10] Achter bosch GGJ, de Jong PPG, Kristspit PPG. The development of a convenient thermal dynamic building model. Energy build 1985;8:96–123. [11] Mendes N, Oliveira GHC, de Araujo HX. Building thermal performance analysis by using MATLAB/SIMULINK. In: Proceedings of 7th international IBPSA conference, IBPSA: Rio de Janeiro, Brazil; 2001. p. 473–7.…

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