基于两相流体网络的复杂制冷空调系统模型研究

Simulation Model of Complex Refrigeration and Air Conditioning System Based on the Two-phase Fluid Network

以系统论和相似理论为基础 ,建立了基于两相流体网络的复杂制冷空调系统仿真模型 ,并将两相流体网络特性与制冷系统特性相结合 ,建立了复杂制冷空调系统仿真模型的求解方法。与试验结果比较表明 ,仿真算法可以用来求解制冷系统两相流体网络模型 ,且仿真误差很小 ,可以用来对复杂制冷系统进行性能分析 ,为研究复杂制冷系统与两相流体网络提供了一种有效的工具。

Based on the theory of system and similarity, a simulation model of complex refrigeration system is set up as a gas-liquid fluid network. According to the rule of flow network and the performance of refrigeration and air conditioning system, an arithmetic model is developed to calculate the two-phase flow network and simulate the performance of complex air conditioning and refrigeration system such as multiple variable refrigerant volume air conditioning system (MVRV). Compared the calculated data with the experimental data, the results show that the arithmetic method is suitable to solve the simulation model and the errors between simulation and experiments are small enough to be as a useful tool of complex air conditioning and refrigeration system. All types of multiple air conditioning system can be uniformed with gas liquid two-phase fluid network, which will be helpful for developing MVRV systems, including optimal design, selection of types and performance prediction of MVRV systems.