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An alternative approach for the performance rating of air-cooled chillers used in air-conditioned buildings

机译：空调建筑物中使用风冷式冷水机组性能等级的替代方法

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Air-cooled chillers are widely used to provide cooling energy for air-conditioned buildings at the expense of considerable electricity. The (Air-Conditioning & Refrigeration Institute) ARI standard 550/590 sets out a rating condition to specify the coefficient of performance (COP) of the chillers under part-load conditions. This condition was found to be insufficient to deal with diverse operating conditions under the multiple chiller arrangement. This paper proposes an alternative approach to specifying more precisely the chiller COP under part-load conditions. It is desirable to establish a set of part-load performance curves showing how the chiller COP varies with the condensing temperature at various combinations of chiller loads and outdoor temperatures. The results of this paper will give engineers and researchers a better idea about how to specify the upper limit of condensing temperature for more energy efficient chillers and how chiller COP curves help compare air-cooled chillers for buildings in any climate zone and to estimate the annual electricity consumption of chillers satisfying any given building cooling load profile.
机译：风冷式冷水机广泛用于为空调建筑提供冷却能，但要消耗大量电力。 （空调与制冷研究所）ARI标准550/590规定了额定条件，以指定部分负荷条件下的冷水机性能系数（COP）。发现该条件不足以应对多台制冷机布置下的各种运行条件。本文提出了另一种方法，可以更精确地指定部分负荷条件下的冷水机组COP。理想的是建立一组部分负荷性能曲线，以显示在制冷机负荷和室外温度的各种组合下，制冷机COP如何随冷凝温度变化。本文的结果将为工程师和研究人员提供一个更好的主意，即如何为更高能效的冷水机组指定冷凝温度的上限，以及冷风机COP曲线如何帮助比较任何气候区中建筑物的风冷冷水机组并估算年度满足任何给定建筑物制冷负荷曲线的冷水机组的电力消耗。

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