蒸发器并联双循环冰箱的温度与分时运行控制策略Ⅱ.实验验证

对于海尔HRF-285蒸发器并联双循环冰箱采用基于温度与分时运行控制策略进行了实验验证.结果表明:在突然向冷藏室或冷冻室放入大量食品,或环境温度过高时,该控制策略均能很好地控制冰箱箱内温度,从而验证了该控制策略的有效性;冷藏循环、冷冻循环最大运行时间对于冰箱箱内温度波动有很大影响.对于HRF-285冰箱耗电量的测试表明,采用该控制策略的冰箱耗电量比采用基于温度的冷藏室(冷冻室)优先控制策略的冰箱耗电量大0.99%左右.耗电量的增大主要是冷冻循环、冷藏循环运行次数增多,造成制冷剂迁移次数增多造成的.

The Temperature and Time-Sharing Running Control Strategy of Two-Circuit Cycle Refrigerator/Freezer with Parallel Evaporators: Ⅱ. Experimental Tests and Validation

A Haier HRF-285 two-circuit cycle refrigerator/freezer with parallel evaporators based on the temperature and time-sharing running control strategy was tested.The results show that the compartment temperature fluctuations can be controlled within rational range under the conditions that a lot of foods are put into fresh food compartment(FFC) or freezer compartment(FZC) at a time, or the ambient temperature is very high,therefore the new control strategy is validated.Tests were carried out when the maximum running time of FFC cycle was changed.It is found that this parameter has a great influence on the FZC temperature.The energy consumption of the unit was tested too.The daily energy consumption of the new control strategy increases about 0.99% compared with that of the existing control strategies of the FFC/FZC prior based on the temperature control.The energy consumption increase is contributed to the frequently start of FFC and FZC cycle.