替代工质应用于冰箱毛细管的特性研究及优化方法

A Simulation and Optimzaition on the Alternative Refrigerant Capillary Tube of Refrigerators

按照冰箱实际运行工况，对冰箱毛细管建立了比较完善的物理与数学模型，运用非线性解法，得出了一定情况下毛细管内工质Ｒ１２以及Ｒ１３４ａ的流动特性；在此基础上，提出了一种对具有回热的毛细管的优化方法。

According to the actual refrigerator operating conditions, a physical and mathematical model has been set up and solved with a non linear method. The simulation result is in good agreement with the reference. A way is discussed for how to optimize the length of the capillary tube and the suction line for R12 and R134a. The optimized length of the capillary tube and suction line has been calculated for refrigerant R12 and alternative R134a.