冷凍用回転圧縮機の動的挙動の計算モデル

概要

論文の詳細を見る
Computer simulation of a refrigerating cycle is effective in predicting the performance of the cycle. The simulation program employs mathematical models of cycle components such as a compressor, a condenser, an evaporator and an expansion device. Concerning the compressor model, ideal or very simple models are used in conventional simulations, which present difficulties in correctly predicting various behaviors of heat pumps with wider operating range. In this paper, a mathematical model of a rotary compressor is developed which can simulate transient behaviors of the compressor and can be easily integrated into heat pump simulations. The model takes compression work and heat transfer between refrigerant and the compressor materials into consideration and consists of governing differential equations on the enthalpy of the refrigerant and temperature of the material. The effectiveness of the model is confirmed by comparisons between calculated results and experimental results which are obtained under several operating conditions such as starting operations at high and low temperature, and continuous operation with wet vapor suctioning.
1990-06-25