Numerical analysis of a novel household refrigerator with shape-stabilized PCM (phase change material) heat storage condensers

The dynamic model of a novel household refrigerator with SSPCM (shape-stabilized phase change material) heat storage condenser presented in this paper were established and agreed well with the experiment. By simulation, the coefficient of performance is increased about 19% by a continuous heat transfer of condenser due to the latent heat storage of SSPCM, however the energy saving is 12% and offset about 7% by the heat leakage increase because of the SSPCM inside the insulation layer. The effects of ambient temperature, freezer temperature and phase change temperature on the energy saving are analyzed to provide theoretical basis for the optimization design of the refrigerator with SSPCM. It can be concluded that the ambient temperature increasing and the freezer temperature decreasing can increase the energy saving effect, the second phase change temperature region with the peak temperature about 49 °C of SSPCM results in the minimum energy consumption of the novel refrigerator.

[1]  Jitendra K. Gupta,et al.  Modeling of hot-wall condensers for domestic refrigerators , 2008 .

[2]  R. R. Bittle,et al.  An experimental evaluation of capillary tube-suction line heat exchanger performance with R-152a , 1995 .

[3]  Karel Mařík,et al.  A methodology for quantitative comparison of control solutions and its application to HVAC (heating, ventilation and air conditioning) systems , 2012 .

[4]  Jun Wang,et al.  Heat conduction enhanced shape-stabilized paraffin/HDPE composite PCMs by graphite addition: Preparation and thermal properties , 2010 .

[5]  Yi-Ning Liu,et al.  A novel household refrigerator with shape-stabilized PCM (Phase Change Material) heat storage conden , 2011 .

[6]  Denis Leducq,et al.  Enhancing the performance of household refrigerators with latent heat storage: An experimental investigation , 2009 .

[7]  E. Mettawee,et al.  Experimental study of a compact PCM solar collector , 2006 .

[8]  Ding Guoliang,et al.  Quasi-dynamic Hermetical Compressor Model Suitable for Dynamic Simulation of Refrigeration System , 2012 .

[9]  Eugénio C. Ferreira,et al.  Energy recovery and impact on land use of Maltese municipal solid waste incineration , 2013 .

[10]  Michael C. Georgiadis,et al.  Energy systems engineering , 2008 .

[11]  Adriano Sciacovelli,et al.  Numerical analysis of a medium scale latent energy storage unit for district heating systems , 2012 .

[12]  Ding Guoliang.  GENERAL INTEGRAL MODEL OF CAPILLARY TUBES , 1999 .

[13]  Jamil A. Khan,et al.  Design and multi-objective optimization of heat exchangers for refrigerators , 2007 .

[14]  Gang Li,et al.  Review of cold storage materials for subzero applications , 2013 .

[15]  R. R. Bittle,et al.  An evaluation of the ASHRAE method for predicting capillary tube-suction line heat exchanger performance , 1995 .

[16]  Shen Yu-gang.  Dynamic Simulation of Household Refrigerator-Freezer , 2003 .

[17]  Wen-Long Cheng,et al.  Studies on thermal properties and thermal control effectiveness of a new shape-stabilized phase change material with high thermal conductivity , 2012 .

[18]  Shen Yu-gang.  Analysis and Establishment of Components' Models of Household Refrigerator-Freezer for Its Dynamic Simulation , 2003 .

[19]  Gabor Modla,et al.  Energy saving methods for the separation of a minimum boiling point azeotrope using an intermediate entrainer , 2013 .