XU Xudong, ZHAO Dan, DING Guoliang, et al. Lumped parameter model for microchannel condenser of refrigerators[J]. CIESC Journal, 2016, (S2): 217-222.DOI: 10.11949/j.issn.0438-1157.20161410.
Refrigerators with microchannel condenser is widely used recently.As for the dynamic simulation of this kind of refrigerators
a fast and accurate prediction model for microchannel condenser is needed.In this paper
several flat tubes in a flow path are simplified as one tube and each flow path is simplified as an element.With the simplification
a lumped parameter model for microchannel condenser is developed and the model is solved with iterations based on energy convergence criteria.The developed model is added into existing refrigerator system simulation platform and is used to predict the performance of one type of fridge with microchannel condenser on a mainstream PC.Computation time for the 24 h dynamic simulation of a refrigerator is less than 3 min.Results of simulation instances show that error between simulation results and experiments data for refrigerator total energy consumption is less than 9.5%.