描述了确定不同冷冻水和冷凝器水流量对离心式冷水机组效率影响的研究。使用了三种方法:1）检查理论传热方程，以评估可变流量对容器传热的影响；2）广泛的成套冷水机计算机建模，检查各种流量和负载条件；3）在ARI认证的试验台上，在不同条件下运行冷水机，以记录数据，将结果与计算机研究相关联，并确定是否会发生任何不稳定的操作或控制情况。在全蒸发器流量或流量减少等于负荷减少百分比的情况下运行时，发现冷却器的性能系数没有显著差异。计算得出的压降与1.8倍的流量成正比。试验台操作与ARI公差范围内的建模结果相关。当管速小于0时，蒸发器性能不稳定。 61米/秒（2英尺/秒）。在管速低至0.305 m/s（1 ft/s）时，冷凝器性能正常。测试是在内螺纹管上进行的。关键词:1996年，冷水机组，水流量，流量，效率，性能，研究，测试，计算，热流引用:研讨会，ASHRAE Trans。1996年，第102卷，第2部分

Describes research to determine the effect of varying chilled and condenser water flows on centrifugal chiller efficiency. Three method were used - 1) theoretical heat transfer equations were examined to assess the effect of variable flow on vessel heat transfer, 2) extensive packaged chiller computer modelling examined a variety of flow and load conditions and 3) a chiller was run on an ARI certified test stand under varying conditions to record data, correlate results with computer studies and determine if any unstable operating or control situations would occur. Finds no significant difference in a chiller's coefficient of performance when operating at full evaporator flow or at a flow reduced equal to the percent reduction in load. Calculated pressure drops were proportional to flow to the 1.8 power. Test stand operation correlated with the modelling results within ARI tolerances. Instability in evaporator performance occurred at a tube velocity of less than 0.61 m/s (2 ft/s). Condenser performance was normal at tube velocities as low as 0.305 m/s (1 ft/s). The testing was done on internally rifled tubes.KEYWORDS: year 1996, Chillers, water flow, flow rate, efficiency, performance, research, testing, calculating, heat flow