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Click to edit Master title style,Click to edit Master text stylesgood1,Second levelgood2,Third levelgood3,Fourth levelgood4,Fifth levelgood5,*,Air Conditioning using,Waste Heat,（余热）,and Solar Energy with Phase Change Materials,1,唐小媛,20125376,2,Abstract,Energy is an important phenomenon in todays hectic world.A lot of researchers are doing research in this field due to its wide importance and also due to the scarcity of sources of energy in modern world,which in turn needs new inventions and discoveries to satisfy the demands of this scientific world.Research works are done to examine different sources of energy and also to reduce its wastage.Reducing the wastage and utilizing the energy completely depicts the overall efficiency of any system.In todays modern world,air conditioning plays a major role due to the rapid increase in the earths temperature and therefore,people long for comfort cooling.Nowadays,a lot of energy is wasted in the form of heat which eventually reduces the overall efficiency of any system.Therefore a system should be designed which shows a maximum efficiency by reducing its wastage to a very minimal amount.,Complete utilization of both solar heat and waste heat is achieved using Phase Change Materials.Phase Change Materials are the materials,which is of greater thermal storage capacity.,3,Simulation content,A,：,The methodology of providing air conditioning,B,：,The basic components of vapour absorption system,C,：,Relevant calculations,D,：,Results and Discussion,4,1.Introduction,Nowadays,people long for comfort cooling due to changes taking place in the climate.Most of the people prefer air conditioning systems for comfort cooling.Several scientists worked on the advancements of the air conditioning systems and published their research works.W.B.Gosney 8 described the basic principle of refrigeration and also explained about the various factor involved in the vapour absorption system in 1982.P.S.Asha Iyer 9 explained the thermo economic theory which is applied to the economic optimization of a single effect water/LiBr vapour absorption refrigeration system for air conditioning application.He aimed at minimizing its overall operation and amortization cost.S.Iyoki 6 investigated the coefficient of performance was undertaken to examine the performance characteristics of the water-lithium bromide-zinc chloride-calcium bromide system(1.0:1.0:0.13 by mass,respectively)in 1990.,1.Introduction,5,Vicatos 1 selected the operating conditions for existing systems and achievingautomatic control for maintaining optimum operation of the systemsin1995.S.Aphornratana 11studied the second law(of thermodynamics)method as applied to a single-effect absorption refrigerator,cycle in 1995.S.M Deng 2 discovered the absorber is an important component in absorption machines and its characteristics have significant effect on the overall efficiency of absorption machines in 1999.J.R.Khan 7 summarized the characteristic performance curves of vapour-compression refrigeration,systems are defined as a plot between the inverse coefficient of performance(1/COP)and inverse cooling capacity(1/)of the system in 1999.M.Talbi 12 used the thermodynamic processes in the absorption refrigeration system which releases a large amount of heat to the environment in 2000.Khalid A.Joudi 3,explained steady state computer simulation model has been developed to predict the performance of an absorption refrigeration system using LiBrH2O as a working pair in 2001.,1.Introduction,6,D.Hudson 10 confabulated,the majority of absorption cycles are based on water/lithium bromide cycle and many applications exist where ammonia/water can be used,especially where lower temperatures are desirable in 2002.Antonio De Lucas 4 investigated and studied the addition of a surfactant like n-octanol improves the absorption capacity of the absorbent solutions employed in absorption refrigeration coolers in 2007.Xiaolin Wang 5 explained the Lithium bromide-water absorption cooling technologies is underpinned by the continual circulation of water,which is the refrigerant,powered by the hygroscopic nature of aqueous lithium bromide solution in 2009.Therefore,our research paper concentrates on both the usage of Phase Change Materials and Vapour Absorption System in air conditioners.There are various sources in which waste heat is released and the corresponding waste heat is used as an input to our air conditioning system which in between packed with Phase Change Materials that absorbs heat periodically.Hence,when the Phase Change Material attains its melting point,it gives heat to our air conditioning unit along with the solar heat and therefore it could work even when the machines releasing waste heat are in ideal conditions.,7,Nomenclature,hc out Outlet enthalpy of refrigerant which is coming out of condenser(kJ/kg),Tc Condenser temperature(C),he out Outlet enthalpy of refrigerant which is coming out of evaporator(kJ/kg),Te Evaporator temperature(C),Xss Concent
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