转速对固体吸湿转轮全热回收性能的影响
Influence of rotation speed on performance of total heat recovery desiccant wheel device
摘要：
建立了全热回收转轮的数学模型，搭建了全热回收转轮实验台，测试了不同转速情况下转轮的全热回收效率，验证了数学模型。定义了转轮的掺混率，模拟分析了考虑掺混前后，转速对全热回收效率的影响。结果表明，全热回收效率受转速影响明显，在不考虑新排风掺混时，随着转速的增大，全热回收效率增大；考虑掺混时，全热回收效率先增大后降低；最优转速与转轮厚度及空气流速有关。
Abstract：
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.
Keywords:total heat recovery, rotary wheel, rotation speed, mixing rate, thickness of rotary wheel, air speed