Research on cycle parameters and performance optimization of thermal storage assisted hot gas bypass defrosting

LU Siyun; LIU Zhanbin; LI Mingjia; LI Mengjie

doi:10.11949/0438-1157.20260575

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Research on cycle parameters and performance optimization of thermal storage assisted hot gas bypass defrosting

更新时间：2026-06-24

- Research on cycle parameters and performance optimization of thermal storage assisted hot gas bypass defrosting
- CIESC Journal (2026)
- 作者机构：
  
  1.西安交通大学能源与动力工程学院，陕西西安 710049
  2.北京理工大学非硅微纳制造工业和信息化部重点实验室，北京 100081
  3.西安交通大学国家储能技术产教融合创新平台（中心），陕西西安 710049
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20260575
  CLC： TB 657.4
- Received：22 April 2026，
  
  Revised：2026-06-23，
  
  Accepted：24 June 2026，
- 稿件说明：
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LU Siyun, LIU Zhanbin, LI Mingjia, et al. Research on cycle parameters and performance optimization of thermal storage assisted hot gas bypass defrosting[J/OL]. CIESC Journal, 2026.
DOI：

LU Siyun, LIU Zhanbin, LI Mingjia, et al. Research on cycle parameters and performance optimization of thermal storage assisted hot gas bypass defrosting[J/OL]. CIESC Journal, 2026. DOI： 10.11949/0438-1157.20260575.

摘要

制冷系统用除霜技术中电加热直接除霜能耗过高，常规热气除霜在低环境温度下供热不足。故以风冷冰箱为对象探索新型高效热气旁通除霜技术，通过建立制冷与旁通除霜循环热力学模型，研究了不同热气旁通循环的除霜性能，提出了更优的热辅助旁通除霜循环。结果表明：在不同环境温度下，通过优化匹配压缩机转速与旁通气体热补偿可有效降低能耗。当除霜时间为30 min、环境温度为16 ℃时，储热辅助压缩机出口热气旁通除霜循环的除霜性能系数较其他热气旁通除霜循环可提高67.1%~124.6%，即除霜能耗降低了40.2%~55.5%。同时，当环境温度为32 ℃时，该循环仍可实现良好的除霜与节能效果。该研究结果为储热型热气旁通除霜循环的优化设计提供了依据，具有重要的工程应用价值。

Abstract

Among defrosting techniques for refrigeration systems

electric heating direct defrosting consumes excessive energy

while conventional hot gas bypass defrosting suffers from insufficient heating supply at low ambient temperatures

leading to deteriorated system performance and reduced energy efficiency. This study develops thermodynamic models for different hot gas bypass defrosting cycles for refrigerators. The reliability of the model parameter settings is verified through whole-machine refrigerator experiments. The defrosting performances of the basic compressor outlet hot gas bypass defrosting (BCOMP_HGBD) and basic condenser outlet hot gas bypass defrosting (BCOND_HGBD) cycles are compared under ambient temperatures of 16  ℃ and 32  ℃

with compressor speeds ranging from 1200 to 4500  rpm. Their limitations

specifically the insufficient defrosting heat at low ambient temperatures

are analyzed. Based on these findings

two configurations are proposed: electric auxiliary condenser outlet hot gas bypass defrosting (ECOND_HGBD) and thermal storage assisted compressor outlet hot gas bypass defrosting (TCOMP_HGBD). Their application strategies and defrosting performance are evaluated by optimizing the matching between compressor speed and bypass gas thermal compensation. The results show that the TCOMP_HGBD cycle with C18 paraffin delivers the best performance. Under a 30-minute defrosting limit at 16  ℃

its coefficient of defrosting performance is 67.1~124.6% higher than that of other HGBD cycles

corresponding to a 40.2~55.5% reduction in energy consumption. The findings provide a basis for the optimal design of thermal storage hot gas bypass defrosting cycles and hold significant value for engineering applications.

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references

Wu S Y , Zhao R J , Huang D , et al . Effect of non-uniform temperature & humidity distribution in the frontal airflow on evaporator frosting performance of a frost-free refrigerator [J ] . International Journal of Refrigeration , 2021 , 123 : 150 - 158 .

Yang P , Yang X L , Liu Y W . Experimental study on a new finned tube defrosting heater for household frost-free refrigerators [J ] . International Journal of Refrigeration , 2023 , 156 : 92 – 101 .

Jeong H , Byun S , Kim D R , et al . Power optimization for defrosting heaters in household refrigerators to reduce energy consumption [J ] . Energy Conversion and Management , 2021 , 237 : 114127 .

Zhao R J , Wang Z P , Huang D , et al . Electric-heater defrosting performance of frost-free refrigerator-freezer and its improvement by step-reduction power [J ] . Applied Thermal Engineering , 2023 , 226 : 120147 .

Zhang S P , Yang Z , Wang Y P , et al . Defrost characteristics and performance improvement of electric heaters in R600a frost-free refrigerators [J ] . Thermal Science and Engineering Progress , 2025 , 58 : 103219 .

苏伟 , 张小松 . 换热器表面抑霜/除霜技术研究进展 [J ] . 工程热物理学报 , 2021 , 42 ( 9 ): 2195 - 2215 .

Su W , Zhang X S . Review of anti-frosting and defrosting methods on air source heat pump [J ] . Journal of Engineering Thermophysics , 2021 , 42 ( 9 ): 2195 - 2215 .

Ma L X , Sun Y J , Wang F H , et al . Advancements in anti-frosting and defrosting techniques for air source heat pumps: A comprehensive review of recent progress [J ] . Applied Energy , 2025 , 377 : 124358 .

郭焱华 , 邵双全 , 李浩 , 等 . 基于数据驱动研究空气源热泵除霜效果研究 [J ] . 工程热物理学报 , 2024 , 45 ( 3 ): 628 - 634 .

Guo Y H , Shao S Q , Li H , et al . A data-driven evaluating method on the defrosting effect of the air source heat pump system [J ] . Journal of Engineering Thermophysics , 2024 , 45 ( 3 ): 628 - 634 .

Xu Z J , Han L . An experimental study on energy-storage based defrosting performance of an air source heat pump system with a micro-channel heat exchanger as outdoor coil [J ] . Applied Thermal Engineering , 2024 , 240 : 122067 .

Xi Z L , Yao R M , Li J B , et al . Experimental studies on hot gas bypass defrosting control strategies for air source heat pumps [J ] . Journal of Building Engineering , 2021 , 43 : 103165 .

Essadik M , Hajabdollahi Ouderji Z , McKeown A , et al . A multi-valve flexible heat pump system with latent thermal energy storage for defrosting operation [J ] . Energy and Buildings , 2024 , 321 : 114656 .

Zhang T , Zhang X L , He Y L , et al . Thermodynamic analysis of hybrid liquid air energy storage systems based on cascaded storage and effective utilization of compression heat [J ] . Applied Thermal Engineering , 2020 , 164 : 114526 .

Liu Z B , Zhao F , Zhang L F , et al . Performance of bypass cycle defrosting system using compressor casing thermal storage for air-cooled household refrigerators [J ] . Applied Thermal Engineering , 2018 , 130 : 1215 - 1223 .

Li Y M , Huang Y X , Xu Y F , et al . Hot gas bypass defrosting with auxiliary heat source in household refrigerators [J ] . Applied Thermal Engineering , 2024 , 257 : 124450 .

郝刚卫 , 刘晔 , 晏刚 , 等 . 串并联风冷冰箱性能优化 [J ] . 化工学报 , 2021 , 72 ( S1 ): 178 - 183 .

Hao G W , Liu Y , Yan G , et al . Performance optimization of a frost-free air cooled refrigerator with series-parallel refrigeration cycle [J ] . CIESC Journal , 2021 , 72 ( S1 ): 178 - 183 .

杨功志 , 张胜棋 , 韩丽丽 , 等 . 风冷冰箱的湿度场动态仿真通用模型及湿度均匀性改善 [J ] . 西安交通大学学报 , 2025 , 59 ( 2 ): 134 - 145 .

Yang G Z , Zhang S Q , Han L L , et al . General model for dynamic simulation of humidity distribution in frost-free refrigerator and humidity uniformity improvement [J ] . Journal of Xi’an Jiaotong University , 2025 , 59 ( 2 ): 134 - 145 .

Gnielinski V . New equations for heat and mass transfer in turbulent pipe and channel flow [J ] . International Chemical Engineering , 1975 , 16 ( 2 ): 359 - 368 .

Steiner D , Taborek J . Flow boiling heat transfer in vertical tubes correlated by an asymptotic model [J ] . Heat Transfer Engineering , 1992 , 13 ( 2 ): 43 - 69 .

Song M J , Xie G N , Pekař L , et al . A modeling study on the revere cycle defrosting of an air source heat pump with the melted frost downwards flowing away and local drainage [J ] . Energy and Buildings , 2020 , 226 : 110257 .

Ma J C , Kim D , Braun J E , et al . Development and validation of a dynamic modeling framework for air-source heat pumps under cycling of frosting and reverse-cycle defrosting [J ] . Energy , 2023 , 272 : 127030 .

Shah M M . A general correlation for heat transfer during film condensation inside pipes [J ] . International Journal of Heat and Mass Transfer , 1979 , 22 ( 4 ): 547 - 556 .

Lee J , Mudawar I . Two-phase flow in high-heat-flux micro-channel heat sink for refrigeration cooling applications: Part II: heat transfer characteristics [J ] . International Journal of Heat and Mass Transfer , 2005 , 48 ( 5 ): 941 - 955 .

Churchill S W . Friction-factor equation spans all fluid-flow regimes [J ] . Chemical Engineering , 1977 , 7 : 91 - 92 .

Ye Z L , Wang Y K , Yin X , et al . Comparison between reverse cycle and hot gas bypass defrosting methods in a transcritical CO 2 heat pump water heater [J ] . Applied Thermal Engineering , 2021 , 196 : 117356 .

Klingebiel J , Hassan M , Venzik V , et al . Efficiency comparison between defrosting methods: a laboratory study on reverse-cycle defrosting, electric heating defrosting, and warm brine defrosting [J ] . Applied Thermal Engineering , 2023 , 233 : 121072 .

国家质量监督检验检疫总局 , 中国国家标准化管理委员会 . 家用电冰箱耗电量限定值及能效等级 : GB 12021.2—2015 [S ] . 北京 : 中国标准出版社 , 2016 .

General Administration of Quality Supervision , Inspection and Quarantine of the People’s Republic of China , Standardization Administration of the People’s Republic of China . The maximum allowable values of the energy consumption and energy efficiency grade for household refrigerators : GB 12021.2—2015 [S ] . Beijing : Standards Press of China , 2016 .

Li Z , Gariboldi E . Review on the temperature-dependent thermophysical properties of liquid paraffins and composite phase change materials with metallic porous structures [J ] . Materials Today Energy , 2021 , 20 : 100642 .

Shu G , Xiao T , Guo J F , et al . Effect of charging/discharging temperatures upon melting and solidification of PCM-metal foam composite in a heat storage tube [J ] . International Journal of Heat and Mass Transfer , 2023 , 201 : 123555 .

Tao Y B , He Y L . A review of phase change material and performance enhancement method for latent heat storage system [J ] . Renewable and Sustainable Energy Reviews , 2018 , 93 : 245 - 259 .

Togun H , Sultan H S , Mohammed H I , et al . A critical review on phase change materials (PCM) based heat exchanger: Different hybrid techniques for the enhancement [J ] . Journal of Energy Storage , 2024 , 79 : 109840 .

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