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1.广东工业大学材料与能源学院 广州 510006
2. 广东省功能软凝聚态物质重点实验室 广州 510006
陈健勇,男,教授,广东工业大学材料与能源学院,广东省功能软凝聚态物质重点实验室,13544552233,E-mail:jianyong@gdut.edu.cn。研究方向:空调热泵系统优化,强化传热技术的研究。
收稿:2026-01-25,
修回:2026-03-03,
录用:2026-03-16,
网络首发:2026-06-16,
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连泽凯,郑晓斌,陈健勇,等. 基于联合仿真的微通道分液冷凝器研究[J]. 制冷学报,XXXX,XX(XX):1-8.
Lian Zekai,Zheng Xiaobin,Chen Jianyong,et al. Co-Simulation-Based Research on Microchannel Condensers with Liquid Separation[J]. Journal of Refrigeration,XXXX,XX(XX):1-8.
连泽凯,郑晓斌,陈健勇,等. 基于联合仿真的微通道分液冷凝器研究[J]. 制冷学报,XXXX,XX(XX):1-8. DOI: 10.12465/issn.0253-4339.20260125001.
Lian Zekai,Zheng Xiaobin,Chen Jianyong,et al. Co-Simulation-Based Research on Microchannel Condensers with Liquid Separation[J]. Journal of Refrigeration,XXXX,XX(XX):1-8. DOI: 10.12465/issn.0253-4339.20260125001.
分液冷凝器由气液分离单元与换热管组成,二者存在强耦合:分离性能影响换热管的传热与流动,而换热管压降是分离的主要驱动力,但现有研究均未考虑该关联。本文考虑分液效果与管程压降的相互影响,提出耦合联箱-小孔分离单元三维CFD模型与换热管一维模型的联合仿真,获得微通道分液冷凝器(LMC)的局部和整体性能并与常规微通道冷凝器(CMC)进行对比,揭示气液分离对换热性能的影响机制。结果表明,联合仿真模型预测结果与实验结果较为一致。虽然LMC的气液分离效率仅为36.2%,但LMC相对于CMC的综合性能提升了16.6%。LMC第三管程传热系数减小,导致换热量下降了276.2 W,其压降下降主要发生在第二管程和第三管程。要充分发挥分液冷凝的效果,需对分液隔板结构和管程布置协同设计。
A liquid-separation condenser consists of a vapor-liquid separation unit and heat-exchange tubes, which are strongly coupled. The separation performance governs the heat transfer and flow behavior in the tubes, while the pressure drop across the tubes serves as the primary driving force for separation. However, existing studies have yet to account for this coupling. This study proposes a co-simulation model that couples a three-dimensional computational fluid dynamics (CFD) model of the header-orifice separation unit with a one-dimensional model of heat-transfer tubes by accounting for the mutual influence between the separation effect and tube-side pressure drop. The local and overall performances of the liquid-separation microchannel condenser (LMC) is obtained. A comparison with a conventional microchannel condenser (CMC) is conducted to reveal the mechanism of the effects of vapor-liquid separation on heat transfer performance. The results show that the predictions of the co-simulation model are in agreement with the experimental data. Although the vapor-liquid separation efficiency of the LMC is only 36.2%, the overall performance of the LMC is improved by 16.6% compared with that of the CMC. Moreover, the decreased heat-transfer coefficient in the third tube pass of the LMC leads to a 276.2 W reduction in the heat transfer rate, whereas the pressure drop reduction of the LMC occurs mainly in the second and third tube passes. To fully realize the benefits of liquid-separation condensation, the orifice-baffle structure and the tube pass arrangement must be simultaneously optimized.
彭晓峰 , 吴迪 , 陆规 , 等 . 分液式空气冷凝器 : CN200610113304.4 [P]. 2007-06-06 .
Peng Xiaofeng , Wu Di , Lu Gui , et al . Liquid-separated air condenser : CN200610113304.4 [P]. 2007-06-06 .
黄锟腾 , 陈健勇 , 陈颖 , 等 . 主动气液调配换热器的研究现状 [J]. 制冷学报 , 2023 , 44 ( 3 ): 1 - 13 .
Huang Kunteng , Chen Jianyong , Chen Ying , et al . Research status of active vapor-liquid adjusting heat exchangers [J]. Journal of Refrigeration , 2023 , 44 ( 3 ): 1 - 13 .
Zhong T M , Chen Y , Zheng W X , et al . Experimental investigation on microchannel condensers with and without liquid-vapor separation headers [J]. Applied Thermal Engineering , 2014 , 73 ( 2 ): 1510 - 1518 .
Zhong Tianming , Yang Junrong , Ding Lixing , et al . Heat transfer enhancement of actively-adjusting liquid-vapor in a double-row microchannel condenser [J]. Case Studies in Thermal Engineering , 2023 , 47 : 103110 .
Ye Liang , Tong Ming wei , Zeng Xin . Design and analysis of multiple parallel-pass condensers [J]. International Journal of Refrigeration , 2009 , 32 ( 6 ): 1153 - 1161 .
Chen Jianyong , Chen Liuxing , Lin Xu , et al . Performance of heat pump water heater (HPWH) with and without liquid-separation: Detailed experimental comparisons [J]. Applied Thermal Engineering , 2020 , 179 : 115713 .
Hua Nan , Chen Ying , Chen Erxiong , et al . Prediction and verification of the thermodynamic performance of vapor-liquid separation condenser [J]. Energy , 2013 , 58 : 384 - 397 .
Pu Jinhuan , Hua Nan , Jian Xiaodong , et al . Performance enhancement mechanisms and optimization of multi-pass parallel flow condensers with liquid-vapor separation [J]. Case Studies in Thermal Engineering , 2025 , 70 : 106120 .
黄锟腾 , 陈健勇 , 陈颖 , 等 . 联箱-小孔型气液分离器的CFD数值模拟 [J]. 制冷学报 , 2022 , 43 ( 1 ): 158 - 166 .
Huang Kunteng , Chen Jianyong , Chen Ying , et al . Simulation of vapor-liquid separation in header-baffle with hole using computational fluid dynamics [J]. Journal of Refrigeration , 2022 , 43 ( 1 ): 158 - 166 .
Huang Kunteng , Chen Jianyong , Chen Ying , et al . Simulation of vapor-liquid separation in the orifice-baffle header under various operating conditions [J]. Applied Sciences , 2022 , 12 ( 16 ): 7971 .
Zheng Xiaobin , Huang Kunteng , Chen Jianyong , et al . Exploration on separation performance of a header-orifice based vapor-liquid separator working with zeotropic mixture [J]. Applied Thermal Engineering , 2025 , 278 : 127348 .
Chen Jianyong , Yang Nuo , Li Junjie , et al . Evaluations of heat pump water heater with liquid-separation condensation from perspectives of performance enhancement and heat exchange area reduction [J]. International Journal of Refrigeration , 2024 , 161 : 21 - 30 .
Gnielinski V . New equations for heat and mass transfer in turbulent pipe and channel flow [J]. International Chemical Engineering , 1976 , 16 ( 2 ): 359 - 367 .
Dittus F W , Boelter L M K . Heat transfer in automobile radiators of the tubular type [J]. University of California Publications in Engineering , 1930 , 2 ( 13 ): 443 - 461 .
Zhang M . A new equivalent Reynolds number model fYor vapor shear-controlled condensation inside smooth and micro-fin tubes [D]. University Park : The Pennsylvania State University , 1998 .
Jige D , Mikajiri N , Nobunaga M , et al . Condensation heat transfer of pure refrigerants R1234yf and R32 inside multiple circular minichannels [J]. International Journal of Heat and Mass Transfer , 2022 , 195 : 123146 .
Asadi M , Xie Gongnan , Sunden B . A review of heat transfer and pressure drop characteristics of single and two-phase microchannels [J]. International Journal of Heat and Mass Transfer , 2014 , 79 : 34 - 53 .
杨世铭 , 陶文铨 . 传热学 [M]. 4版 . 北京 : 高等教育出版社 , 2006 .
Yang Shiming , Tao Wenquan . Heat transfer [M]. 4th ed . Beijing : Higher Education Press , 2006 .
黄锟腾 . 联箱-小孔型气液调配单元的分离特性及其应用研究 [D]. 广州 : 广东工业大学 , 2023 .
Huang Kunteng . Research on separation mechanism and application of vapor-liquid adjustment unit [D]. Guangzhou : Guangdong University of Technology , 2023 .
Yang Bin , Su Wen , Deng Shuai , et al . State-of-art of branching T-junction: Experiments, modeling, developing prospects and applications [J]. Experimental Thermal and Fluid Science , 2019 , 109 : 109895 .
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