在这项研究中，除霜效率及其对系统性能的影响，在顶部安装家用冷冻柜进行了调查。双蒸发器系统，其中两个独立的蒸发器串联或并联连接，用于讨论除霜方法的优缺点。蒸发器位于每个单独的冷冻室和新鲜食品舱中。由于新鲜食品蒸发器的入口空气温度通常高于5ºC，因此使用这种温暖的空气进行除霜似乎是个好主意。术语“空气除霜”用于此过程，即在压缩机处于关闭位置时，使新鲜食品舱空气通过蒸发器循环。为了观察空气除霜的效果，对三种可能的情况进行了实验研究。这些方法包括1）两个蒸发器上的加热器除霜，2）冷冻蒸发器上的加热器和新鲜食品蒸发器上的空气除霜，3）冷冻蒸发器上的加热器和新鲜食品蒸发器上的加热器和空气除霜组合。 对蒸发器的分离除霜和组合除霜进行了研究。测量了除霜效率和除霜对冰箱能耗的影响。在实验中，还考虑了开门的影响。单元:干燥:研讨会论文，大西洋城，2002年

In this study, defrost efficiency and its effects on system performance in a top mount domestic freezer have been investigated. A dual evaporator system, where two separate evaporators are connected either serially or in parallel, is used to discuss advantages and disadvantages of defrosting methods. Evaporators are located in each individual freezer and fresh food compartment. Since the fresh food evaporator's inlet air temperature is normally higher than 5ºC, it seems like a good idea to use this warm air for defrosting. The term "air defrosting"is used for this process, which is simply circulating the fresh food compartment air through the evaporator while the compressor is in the off position. In order to see the effects ofair defrosting, three possible cases are investigated experimentally. These methods are 1) heater defrost on both evaporators, 2) heater on freezer evaporator and air defrosting on fresh food evaporator, 3) heater on freezer evaporator and a combination of heater and air defrosting on fresh food evaporator. The separate and combined defrosting of the evaporators is also studied. Defrost efficiency and effects of defrostingin refrigerator energy consumption are measured. In the experiments, the effect of door opening is also included.Units: SI