制冷剂侧结构对多元微通道平行流冷凝器传热与流动性能的影响

摘要/Abstract

摘要：

摘要：建立了多元微通道平行流冷凝器的稳态分布参数模型，将模型计算值与其实验结果对比验证了模型的正确性.同时，利用所建立的模型研究了扁管孔数、扁管内孔高宽比、流程布置、各流程间扁管数分配方式等参数对平行流冷凝器传热和流动性能的影响.结果表明：随着扁管孔数的增多，换热量逐渐增大，制冷剂侧压降逐渐减小，空气侧压降逐渐增大；随着扁管内孔高宽比的增大，换热量与制冷剂侧压降逐渐减小，空气侧压降不变；随着流程数的增多，换热量与制冷剂侧压降逐渐增大；当流程数一定时，各流程间扁管数的分配宜从第1流程向后依次递减，其递减速率逐渐减小，且过冷区的扁管数不宜过少.

关键词: , 多元微通道, 平行流冷凝器, 传热与流动性能, 变结构

Abstract:

The theoretical model of the multiple micro-channel parallel flow condenser was established based on the method of distribution parameters, and the validity of the model was verified by comparison with the experimental data. Based on this model, the effects of flat tube inner hole numbers, proportion of height and width of the inner hole, flow paths arrangement, flat tubes distribution of different flow path on the heat transfer and flow performance of multiple micro-channel parallel flow condenser were investigated. The results show that, as the flat tube inner hole numbers increase, the heat transfer rate and air-side pressure drop increase, while the refrigerant-side pressure drop decreases; when the proportion of the height and width of the inner hole increases, the heat transfer rate and refrigerant-side pressure drop decrease, and the air-side pressure drop remains constant; as the flow paths number increases, the heat transfer rate and refrigerant-side pressure drop increase; when the flow paths number remains constant, the principle of flat tubes distribution is that the tube number in every flow path should be decreased in turn, the decreasing speed should be gradually slowed down, and the tube numbers in the subcooling section should not be too few.

Key words: multiple micro-channel, parallel flow condenser, heat transfer and flow performance, variable structure

中图分类号:

TB 657.5

方继华1，谷波1，田镇1，赵鹏程2. 制冷剂侧结构对多元微通道平行流冷凝器传热与流动性能的影响[J]. 上海交通大学学报（自然版）, 2014, 48(09): 1315-1322.

FANG Jihua1，GU Bo1，TIAN Zhen1，ZHAO Pengcheng2. Effects of Refrigerant-Side Structure on Heat Transfer and Flow Performance of Multiple Micro-Channel Parallel Flow Condenser[J]. Journal of Shanghai Jiaotong University, 2014, 48(09): 1315-1322.

参考文献

［1］Lee G H, Yoo J Y. Performance analysis and simulation of automobile air conditioning system ［J］. International Journal of Refrigeration, 2000, 23(3):243254.

［2］Sanaye S, Dehghandokht M. Modeling and multiobjective optimization of parallel flow condenser using evolutionary algorithm ［J］. Applied Energy, 2011, 88(5):15681577.

［3］Ye L, Tong M W, Zeng X. Design and analysis of multiple parallelpass condensers ［J］. International Journal of Refrigeration, 2009, 32(6):11531161.

［4］Chang Y J, Wang C C. A generalized heat transfer correlation for louver fin geometry［J］. International Journal of Heat and Mass Transfer，1997，40(3): 533544.

［5］Kim M H, Bullard C W. Airside thermal hydraulic performance of multilouvered fin aluminum heat exchanger［J］. International Journal of Refrigeration, 2002, 25(3):390400.

［6］包涛，陈蕴光，董玉军，等.多元平行流冷凝器传热流动性能研究［J］. 制冷学报，2005，26(3)：15.

BAO Tao, CHEN Yunguang, DONG Yujun, et al. Study on heat transfer and flow characteristics of a multiparallelflow type condenser［J］. Refrigeration Journal, 2005, 26(3):15.

［7］黄晓峰，曹小林，潘雯，等.多元平行流冷凝器的数值模拟研究［J］. 流体机械，2012,40（9）：7275.

HUANG Xiaofeng, CAO Xiaolin, PAN Wen, et al. Simulation study of a multiunit parallelflow condenser［J］. Fluid Machinery, 2012, 40(9):7275.

［8］邵世婷，王文.微型通道冷凝器数值模拟与分析［J］. 上海交通大学学报，2009，43（2）：251255.

SHAO Shiting, WANG Wen. Numerical simulation and analysis of microchannel condenser ［J］. Journal of Shanghai Jiaotong University, 2009, 43(2):251255.

［9］胡浩茫，陈焕新，王彦忠，等.基于两相流流型的平行流冷凝器整体仿真模型与实验验证［J］. 化工学报，2012,63（3）：806811.

HU Haomang, CHEN Huanxin, WANG Yanzhong, et al. Simulation model and experimental study on parallel flow condenser based on twophase flow regime ［J］. CIESC Journal, 2012, 63(3): 806811.

［10］舒朝辉，李从来，陈焕新，等.扁管结构对平行流冷凝器制冷剂侧性能的影响［J］. 化工学报，2008,59（S2）:129133.

SHU Zhaohui, LI Conglai, CHEN Huanxin, et al. Flat tube structure on refrigerantside performance of parallel type condenser ［J］. CIESC Journal, 2008, 59(S2): 129133.

［11］彭明，张雪平.不同流程布置的平行流式冷凝器实验研究［J］. 制冷与空调，2008，22（2）：15.

PENG Ming, ZHANG Xueping. Experimental investigation of parallelflow type condenser with various refrigerant circulation ［J］. Refrigeration and Air Conditioning, 2008, 22(2):15.

［12］吴业正.制冷原理及设备［M］. 西安：西安交通大学出版社，2010.

［13］Didi Ould M B, Kattan N, Thome J R. Prediction of twophase pressure gradients of refrigerants in horizontal tubes ［J］. International Journal of Refrigeration, 2002, 25(7): 935947.

［14］Yang C Y, Webb R L. Condensation of R12 in small hydraulic diameter extruded aluminum tubes with and without microfins［J］. International Journal of Heat Mass Transfer, 1996, 39(4): 791800.

［15］成剑，金听祥，郑祖义.平行流换热器换热性能影响因素的分析［J］. 家电科技，2009，265(1)：4950.

CHENG Jian, JIN Tingxiang, ZHENG Zuyi. Analysis on the effect factors for heat transfer performance of parallel heat exchanger ［J］. China Appliance Technology, 2009, 265(1):4950.第48卷第9期2014年9月上海交通大学学报JOURNAL OF SHANGHAI JIAO TONG UNIVERSITYVol.48 No.9Sep. 2014

[1]	王聚团, 戚晓宁, 黄志明. 水下生产管汇测试技术及其改进研究[J]. 海洋工程装备与技术, 2022, 9(2): 43-49.
[2]	袁振钦, 邹科, 孙亚峰, 刘刚, 屈衍, 李居跃. 基于时域分析法的动态电缆疲劳分析[J]. 海洋工程装备与技术, 2022, 9(2): 50-55.
[3]	王娟, 杨明旺, 郑茂尧, 刘凌云, 赵立君. 高强钢在大型半潜式平台组块建造中的应用[J]. 海洋工程装备与技术, 2022, 9(1): 27-31.
[4]	陈欣, 赵晓磊, 王立坤, 肖德明, 张腾月. 深水大型吸力锚建造技术研究[J]. 海洋工程装备与技术, 2022, 9(1): 32-36.
[5]	尹彦坤, 易涤非. 半潜式生产平台船体结构关键节点工程临界评估[J]. 海洋工程装备与技术, 2022, 9(1): 52-57.
[6]	MA Qunsheng (马群圣), CEN Xingxing (岑星星), YUAN Junyi (袁骏毅), HOU Xumin (侯旭敏). Word Embedding Bootstrapped Deep Active Learning Method to Information Extraction on Chinese Electronic Medical Record[J]. J Shanghai Jiaotong Univ Sci, 2021, 26(4): 494-502.
[7]	ZHANG Shengfa (张胜发), TANG Na (唐纳), SHEN Guofeng (沈国峰), WANG Han (王悍), QIAO Shan (乔杉). Universal Software Architecture of Magnetic Resonance-Guided Focused Ultrasound Surgery System and Experimental Study[J]. J Shanghai Jiaotong Univ Sci, 2021, 26(4): 471-481.
[8]	安庆升, 孙立东, 武秋生. 碳纤维增强复合材料发射筒设计研究[J]. 空天防御, 2021, 4(2): 13-.
[9]	KONG Xiangqiang (孔祥强), MENG Xiangxi (孟祥熙), LI Jianbo (李见波), SHANG Yanping (尚燕平), CUI Fulin (崔福林) . Comparative Study on Two-Stage Absorption Refrigeration Systems with Different Working Pairs[J]. J Shanghai Jiaotong Univ Sci, 2021, 26(2): 155-162.
[10]	ZHUANG Weimin (庄蔚敏), WANG Pengyue (王鹏跃), AO Wenhong (熬文宏), CHEN Gang (陈刚) . Experiment and Simulation of Impact Response of Woven CFRP Laminates with Different Stacking Angles[J]. J Shanghai Jiaotong Univ Sci, 2021, 26(2): 218-230.
[11]	ZHOU Xuhui (周旭辉), ZHANG Wenguang (张文光), XIE Jie (谢颉). Effects of Micro-Milling and Laser Engraving on Processing Quality and Implantation Mechanics of PEG-Dexamethasone Coated Neural Probe[J]. J Shanghai Jiaotong Univ Sci, 2021, 26(1): 1-9.
[12]	HUANG Ningning (黄宁宁), MA Yixin (马艺馨), ZHANG Mingzhu (张明珠), GE Hao (葛浩), WU Huawei (吴华伟). Finite Element Modeling of Human Thorax Based on MRI Images for EIT Image Reconstruction[J]. J Shanghai Jiaotong Univ Sci, 2021, 26(1): 33-39.
[13]	李强林, 曾炜杰, 田镇, 谷波. 反向传播神经网络对多结构翅片管换热器变工况性能预测适应性研究[J]. 上海交通大学学报, 2020, 54(7): 668-673.
[14]	WANG Xianjin, GAO Xu, YU Kuigang . Fixture Locating Modelling and Optimization Research of Aluminum Alloy Sidewall in a High-Speed Train Body[J]. J Shanghai Jiaotong Univ Sci, 2020, 25(6): 706-713.
[15]	QIAO Xing, MA Dan, YAO Xuliang, FENG Baolin. Stability and Numerical Analysis of a Standby System[J]. J Shanghai Jiaotong Univ Sci, 2020, 25(6): 769-778.