与除霜工业冷冻柜盘管相关的热负荷尚未完全量化为影响系统的各种参数的函数。ASHRAE目前的建议是简单假设盘管除霜负荷是制冷设备相关负荷的一部分，在冷冻柜温度下，该负荷可能超过净制冷负荷的15%。对于设计师如何确定实际除霜负荷，目前尚无指导。为了满足这一需求，ASHRAE启动了一个研究项目RP-622，并设计和建造了一个特殊的测试仪器，以实现一系列明确的目标。本文对该实验测试设备进行了详细描述，以作为使用该设备进行研究的独立参考。单位:I-PCITION:研讨会，ASHRAE交易，1998年，第104卷，pt。 1A，旧金山

The heat loads associated with defrosting industrial freezer coils have not been fully quantified as a function of the various parameters that affect the system. The current ASHRAE recommendation is to simply assume that the coil defrosting load is a part of the refrigeration equipment-related load, which, at freezer temperatures, may exceed 15% of the net refrigeration load. There is no direction as to how the designer may determine what the actual defrosting load may be. In response to this need, ASHRAE launched a research project, RP-622, and a special test apparatus was designed and constructed to achieve a set of well-defined objectives. This paper provides a detailed description of this experimental test facility in order to serve as a stand-alone reference for research conducted employing this facility.Units: I-P