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首页> 外文期刊>International Journal of Refrigeration >Partialization losses of ON/OFF operation of water-to-water refrigeration/heat-pump units
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Partialization losses of ON/OFF operation of water-to-water refrigeration/heat-pump units

机译：水对水制冷/热泵机组ON / OFF操作的部分损失

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This paper presents the results of an experimental campaign for the characterization of the dynamic behavior of a water-to-water refrigeration/heat-pump unit under ON/OFF operation. The unit was previously tested at different water inlet temperatures under steady state conditions, and a very good agreement was found between the instantaneous dynamic performance of the heat pump and the corresponding quasi-steady state operation. In parallel, a series of tests were carried out to quantify the coefficient of performance (COP) degradation as a function of the load ratio, and a simple formula for the Part Load Factor is presented. Results lead to the conclusion that the only non-negligible factor in the COP degradation is the stand-by electrical consumption during the OFF period, especially at low load ratios. Finally, it is concluded that the minimization of the stand-by consumption is a key point for the future improvement of the seasonal performance of water-to-water systems.
机译：本文介绍了表征在开/关操作下水到水制冷/热泵机组的动态行为的实验活动的结果。该装置先前已在稳态条件下在不同进水温度下进行了测试，并且在热泵的瞬时动态性能与相应的准稳态运行之间找到了非常好的一致性。同时，进行了一系列测试，以量化性能系数（COP）随负载比变化的情况，并给出了部分负载系数的简单公式。结果得出的结论是，在COP降低中，唯一不可忽略的因素是OFF期间的待机功耗，尤其是在低负载比时。最后，得出的结论是，待机消耗的最小化是将来改善水到水系统的季节性性能的关键点。

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