On the basis of the model for EEV, the mathematical models for heat exchangers are perfected further.The model of compressor is given according to the performance curves provided by the manufactory.

• 在所建的电子膨胀阀的数学模型的基础上，完善了换热器的数学模型，采用分布参数法，对换热器的数学模型进行求解；