对自动和手动除霜冰箱/冷冻柜组合、直立式和柜式冷冻柜进行了研究，以测量五种不同使用条件对能耗的影响:恒温器设置、环境温度、食物负荷、开门频率和相对湿度。没有对结霜的影响进行评估。研究发现，环境温度和恒温器设置对测试样本的能耗影响比开门和相对湿度变化大得多。引文:研讨会，ASHRAE交易，第83卷，第一部分，伊利诺伊州芝加哥

A study was made of an automatic- and a manual-defrost refrigerator/freezer combination, andan upright and a chest freezer to measure the effect on energy consumption of five variableusage conditions: thermostat setting, ambient temperature, food load, door-opening frequency,and relative humidity. No evaluation was made of the effect of frost build-up.Ambient temperature and thermostat settings were found to have considerably greater effect onenergy consumption than door-opening and relative humidity changes for the specimens tested.