本文描述了冷冻水换热回路的水流量优化，它是空气-水盘管尺寸和制冷剂-水盘管尺寸的函数。这个问题已经成功地在一个高级设计课程中用作案例研究。优化问题用无量纲变量来描述，以减少独立设计变量的数量，并说明总体趋势。结果表明，对于每种可能的换热器选择，存在一个有限的最佳流量，对应于进气温度和蒸发器温度之间的最小温差。 然后通过一组特定的边界条件（入口温度、负载或流量）对无量纲模型进行扩充。然后，利用增广模型对特定的冷水换热回路进行优化设计。关键词:热交换器、空气-水热交换器、教育、大学、设计、空调、冷却器、冷冻水供应、冷却器电池、计算、水流量。引文:研讨会，ASHRAE交易，第96卷，pt。1990年3月2日，圣路易斯

This paper describes the optimisation of water flow rate for a chilled-water heat transfer loop as a function of the air-water coil size and the refrigerant-water coil size. This problem has been successfully used as a case study in a senior-level design class. The optimisation problem is formulated in terms of dimensionless variables in order to reduce the number of independent design variables and to illustrate the general trends. The results show that for each possible heat exchanger selection, a finite optimal flow rate exists, which corresponds to a minimum temperature difference between the inlet air temperature and the evaporator temperature. The nondimensional model is then augmented by a specific set of boundary conditions (inlet temperatures, loads, or flows). The augmented model is then used to select the optimum design for a specific chilled-water heat transfer loop.KEYWORDS: heat exchangers, air water heat exchangers, education, universities, designing, air conditioning, chillers, chilled water supply, cooler batteries, calculating, water flow.