YANG Congyan, ZHAO Dan, DING Guoliang, et al. A control strategy based on temperature priority level for domestic refrigerator with parallel evaporators[J]. CIESC Journal, 2016, (S2): 202-207.
YANG Congyan, ZHAO Dan, DING Guoliang, et al. A control strategy based on temperature priority level for domestic refrigerator with parallel evaporators[J]. CIESC Journal, 2016, (S2): 202-207.DOI: 10.11949/j.issn.0438-1157.20161401.
The adoption of a parallel evaporators for large-capacity refrigerators can control the cabinet air temperature separately.The existing sequential control strategies cause some problems of exceeding the cabinet air temperature up limit and deviating from the set average temperature easily under the dynamic conditions
and a new control strategy is necessary to avoid these problems.The objective of this study is to put forward a new control strategy which switch freezing/refrigerating cycle based on the cooling urgency of cabinet
and the new control strategy is analyzed to find the way to solve the two problems mentioned above under the dynamic conditions.Refrigerator with parallel dual evaporator in the new control strategy and existing three sequential control strategies are simulated numerically
the results show that the new control strategy does not have the problem of exceeding the cabinet air up temperature limit
and the deviation from the set average temperature is less than 0.6 K; the energy-saving effect can reach 8.5%
comparing with the existing sequential control strategies.