板式蒸发器仿真计算模型

Simulation on the Performance of Plate Evaporator

对板式蒸发器建立仿真计算模型。并利用模型,精确计算了板式蒸发器里流体沿流道方向温度、压力的分布以及冷热流体的速度分布和板壁温度分布。根据模型的计算结果,分析换热器运行性能,阐述仿真结果的理论依据,说明了板式换热器的换热和流体流动情况,为板式换热器的优化设计和系统仿真提供了基础。

The steady distributed parameter model is established in this paper to simulate the plate heat exchanger used as an evaporator. Based on the model, many parameters can be respectively calculated such as the temperature and pressure of refrigerant and water, the velocities of the two fluids and the temperature of the plate along the plate length. The numerical analysis can be carried out about the exchanger performance, and the theories concerned are expounded. The heat exchanging and the fluids flowing in the exchanger are explained well. From these, it is possible to improve the performance and the design of the exchanger.