Latent heat thermal energy storage is one of the most efficient ways to store the thermal energy for heating air by energy received from the sun. This project is investigation and analysis of thermal energy storage incorporating with phase change materials (PCM) and integrated solar collector plate for use in solar air heater. The integrated collector storage (ICS) concept is applicable as direction in increasing the economic feasibility and more attractive for space heating, cooling in

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... , agricultural and industrial applications in buildings, solar applications, off-peak energy storage, and heat exchanger improvements. It focuses mostly on applications involving a reduction of electric power consumption. A system of this combines collection and storage of thermal energy in a single unit. Compared with the other conventional domestic air heating system, the integrated collector heating system has the more advantage of simplicity, both in erection and in operation. The thermal performance of this solar air heater with phase change material and integrated collector plate are more than conventional type because large surface area for heat transfer is obtained. When the sun ray falls on the solar collector plate, the panel or surface area is responsible for the amount of heat storage. This heat energy is transferred with the help of aluminium fins to the stored paraffin wax which is used as a latent heat storage system. In this project reflector plate with stand and paraffin wax is used. The latent heat storage capacity of paraffin wax is more. So that the amount of heat energy is increased with the help of this reflector. Due to this more amount of heat energy the difference of inlet air temperature and outlet air temperature is more, so that high temperature of hot air is obtained and efficiency of collector plate is increased. This improved collector efficiency by reducing heat loss to the environment, and help achieve an overall efficiency, which accosts of pumping loss for moving air through the collector.