直接膨胀式土壤耦合热泵竖直单U形管换热器优化设计

摘要

Considering the oil return model, heat transfer model, pressure drop checking model and refrigerant thermo-physical parameters, establishes an optimal computer program. With a project example, predicts the optimum values of design parameters, and analyses and compares the system COP, operational and initial costs between before and after the optimal design.%考虑回油模型、换热模型、压降校核模型及制冷剂的热物性参数,建立了竖直单U形管换热器的计算机优化程序.以某工程为例,预测了优化设计参数,并分析比较了优化前后系统的COP、运行费用及初投资.