Effect of operational parameter on the heat transfer in a heat receiver

It is possible to solve some problems using three multiple phase change materials to replace single kind of high-temperature phase change material in heat receiver for NASA 2 kW solar dynamic power system. The heat receiver model was established. The corresponding numerical methods were described. Tube maximum temperature, gas exit temperature and liquid phase change material fractions were calculated based on working parameters such as gas inlet temperature, receiver heat input and gas mass flow rate. The results indicate that parametric changes in receiver gas inlet temperature and receiver heat input affects the changes in receiver gas exit temperature. Selecting these parameters is very important to improve the heat receiver thermal performance.