This paper proposes a mathematics model for the simulation of finned tube heat exchanger, double-pipe heat exchanger, compressor and expanded valve based on distributed parameter.

• 本文利用稳态分布参数法研究了空气源热泵热水器翅片管式换热器、套管式换热器及压缩机,热力膨胀阀的仿真计算模型。