The utilization of solar energy in all the viable thermal applications can reduce the emission of greenhouse gases and can help in the conservation of fuel[1].The said task can be carried out more effectively in the parts of the world where the sunshine is ample.However,the discrete nature of this energy has led a surge in the search of materials with the capacity to store and then release the energy in a sustained manner.These materials are known as thermal energy storage devices(TESDs)[2-4].Such materials have their melting points within the usable temperature range and are hence known as phase changing materials(PCMs).Several thermophysical, chemical and economic assets are desired from an ideal PCM to be used as TESD.It is expected that PCMs should have high value of density,heat of fusion,heat capacity and thermal conductivity[3].
展开▼
