Influence of rotation speed on performance of total heat recovery desiccant wheel device

Establishes the mathematical model and sets up an experimental stand for total heat recovery desiccant wheel device. Tests the total heat recovery efficiency of wheels at different rotation speeds to verify this mathematical model. Defines the mixing rate of the wheel. Simulates and analyses the influences of the rotation speed on the total heat recovery efficiency before and after considering the mixing. The results show that the rotation speed has obvious influence on the total heat recovery efficiency. When air mixing is not considered, the heat recovery efficiency increases with the increase of rotation speed. When air mixing is considered, the total heat recovery efficiency first increases and then decreases with the increase of rotation speed. The optimum rotation speed is related to the thickness of rotary wheel and air speed.