Abstract:
The world is suffering from the depletion of fossil energy sources which are commonly used in our time as well as the world. Environment is suffering from the negative effects that still affect due to the use of this energy such as global warming. Renewable and alternative energies are new technologies to solve these problems. The solar energy is a suitable to use in Sudan. Thermal energy storage is one of methods to save energy such as phase change materials (PCM) .An experimentally study to heating water and save it hot at long time by using lab scale solar heater integrated with phase change material. Experimental results show that the water was heated until 65 C during charge by using PCM. In addition it was investigate experimentally the water still hot until 7 hours with PCM compare 3 hours without PCM.
