Development of simulation model for double row folded microchannel heat exchanger

doi:10.11949/0438-1157.20201534

Abstract

Abstract:

In this paper, a structure of double row folded type microchannel heat exchanger is presented, and a three-dimension distribution parameter model is established to analyze the performance of microchannel heat exchanger with this configuration. Based on the unique structure of double row folded heat exchanger, control volume of microchannel tube and header were divided respectively, and a path-to-path description method was used to describe the flow path of the refrigerant inside the tube. The correlations of heat transfer and pressure drop for refrigerant side and air side for microchannel heat exchanger, which are recorded in the published literature, were investigated and sorted out, so that the model could be applied to various working conditions. The governing equation of the model is established, and a fast algorithm of alternating iteration of heat transfer and pressure drop is developed. The results show that the average heat transfer error calculated based on the simulation model is less than 5%, and the average pressure drop error on the refrigerant side is less than 10% compared with experimental results, which meets the actual engineering requirements.

Key words: double row folded, microchannel heat exchanger, computer simulation, algorithm, experimental validation

摘要：

针对双排对折型微通道换热器，建立三维分布参数模型，基于双排对折的独特结构分别划分换热区和集流管的控制单元，并创新性提出一种基于流程的制冷剂流路描述方法。调研并整理了公开发表文献中记载的适用于微通道换热器的制冷剂侧和空气侧的换热及压降关联式，使模型能够应用于各类工况。建立模型的控制方程，并开发一种换热-压降交替迭代的快速求解算法，基于此计算换热器性能，并用试验数据验证模型的计算精度。结果表明，基于此仿真模型计算的换热器平均换热误差小于5%，制冷剂侧平均压降误差小于10%，满足实际工程需求。

关键词: 双排对折, 微通道换热器, 计算机模拟, 算法, 试验验证

CLC Number:

TK 172

WANG Zhaoqi, LI Mengshan, HU Haitao, WEI Wenjian. Development of simulation model for double row folded microchannel heat exchanger[J]. CIESC Journal, 2021, 72(S1): 113-119.

王兆奇, 李孟山, 胡海涛, 魏文建. 双排对折型微通道换热器仿真模型开发[J]. 化工学报, 2021, 72(S1): 113-119.

Figures/Tables 6

Fig.1 Schematic diagram of double row folded microchannel heat exchanger

Fig.2 Control volume division of double row folded structure

Fig.3 Control volume division of header

Fig.4 Flow description based on path

Fig.5 Algorithm flow chart

Fig.6 Comparison between simulation value and experimental value in evaporation condition

References 29

1	康盈, 柳建华, 张良, 等. 微通道换热器的研究进展及其应用前景[J]. 低温与超导, 2012, 40(6): 45-48.
	Kang Y, Liu J H, Zhang L, et al. The research progress and application prospect of the microchannel heat exchanger [J]. Cryogenics & Superconductivity, 2012, 40(6): 45-48.
2	Han Y H, Liu Y, Li M, et al. A review of development of micro-channel heat exchanger applied in air-conditioning system [J]. Energy Procedia, 2012, 14: 148-153.
3	饶荣水, 陈俊伟, 蔡宗军, 等. 微通道换热器在空调器上的应用研究[J]. 制冷与空调, 2009, 9(4): 63-66, 32.
	Rao R S, Chen J W, Cai Z J, et al. Application investigation of micro channel heat exchanger on air conditioner [J]. Refrigeration and Air-Conditioning, 2009, 9(4): 63-66, 32.
4	党聪聪. 插片式微通道换热器换热特性试验研究与三维参数化设计平台开发[D]. 杭州: 浙江理工大学, 2019.
	Dang C C. Experimental research on heat transfer characteristic of plate-fin microchannel heat exchanger and development of three-dimensions parametric design platform [D]. Hangzhou: Zhejiang Sci-Tech University, 2019.
5	Li J, Wang S F, Zhang W J. Air-side thermal hydraulic performance of an integrated fin and micro-channel heat exchanger [J]. Energy Conversion and Management, 2011, 52(2): 983-989.
6	Deng Y B, Menon S, Lavrich Z, et al. Design, simulation, and testing of a novel micro-channel heat exchanger for natural gas cooling in automotive applications [J]. Applied Thermal Engineering, 2017, 110: 327-334.
7	Andhare R S, Shooshtari A, Dessiatoun S V, et al. Heat transfer and pressure drop characteristics of a flat plate manifold microchannel heat exchanger in counter flow configuration [J]. Applied Thermal Engineering, 2016, 96: 178-189.
8	商萍君. 风冷式微通道冷凝器的性能拟合计算模型[J]. 制冷与空调, 2018, 18(9): 25-28.
	Shang P J. Calculation model of performance fitting for air-cooled micro-channel condenser [J]. Refrigeration and Air-Conditioning, 2018, 18(9): 25-28.
9	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 T, Chen Y G, Dong Y J, et al. Study on heat transfer and flow characteristics of a multi - unit parallel - flow type condenser [J]. Refrigeration Journal, 2005, 26(3): 1-5.
10	云和明, 程林, 王立秋, 等. 光滑矩形微通道液体单相流动和传热的数值研究[J]. 工程热物理学报, 2007, 28(S2): 33-36.
	Yun H M, Cheng L, Wang L Q, et al. The numerical research on flow and heat transfer of single-phase liquid in smooth rectangular microchannels [J]. Journal of Engineering Thermophysics, 2007, 28(S2): 33-36.
11	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 S T, Wang W. Numerical simulation and analysis of micro-channel condenser [J]. Journal of Shanghai Jiao Tong University, 2009, 43(2): 251-255.
12	Glazar V, Frankovic B, Trp A. Experimental and numerical study of the compact heat exchanger with different microchannel shapes [J]. International Journal of Refrigeration, 2015, 51: 144-153.
13	马虎根, 胡自成. 非共沸混合物微通道内流动沸腾特性[J]. 化工学报, 2006, 57(3): 526-529.
	Ma H G, Hu Z C. Flow boiling in microchannel with nonazeotropic mixture [J]. Journal of Chemical Industry and Engineering (China), 2006, 57(3): 526-529.
14	杞卓玲, 贾力, 党超. 微细通道内非共沸工质流动沸腾换热试验研究[J]. 工程热物理学报, 2018, 39(9): 2005-2011.
	Qi Z L, Jia L, Dang C. Experimental investigation on flow boiling heat transfer characteristics of zeotropic mixture in microchannels [J]. Journal of Engineering Thermophysics, 2018, 39(9): 2005-2011.
15	Zou Y, Hrnjak P S. Effects of fluid properties on two-phase flow and refrigerant distribution in the vertical header of a reversible microchannel heat exchanger - comparing R245fa, R134a, R410A, and R32 [J]. Applied Thermal Engineering, 2014, 70(1): 966-976.
16	王婷婷, 丁国良, 段钟弟, 等. 基于仿真的LNG绕管式换热器设计方法[J]. 制冷技术, 2017, 37(3): 12-17, 28.
	Wang T T, Ding G L, Duan Z D, et al. A design method based on simulation for LNG spiral wound heat exchangers [J]. Chinese Journal of Refrigeration Technology, 2017, 37(3): 12-17, 28.
17	丁国良, 刘建, 董洪洲. 基于图论的翅片管换热器三维仿真软件开发[C]//中国制冷学会. 杭州, 2005: 553-557.
	Ding G L, Liu J, Dong H Z. Development of three-dimensional simulation software for fin-and-tube heat exchanger based on graph theory[C]//Chinese Association of Refrigeration. Hangzhou, 2005: 553-557.
18	孙浩然, 任滔, 李智强, 等. 结合用户数据的空调器仿真平台构建[J]. 制冷技术, 2014, 34(4): 31-37.
	Sun H R, Ren T, Li Z Q, et al. Development of user data integrated simulation platform for air conditioner [J]. Chinese Journal of Refrigeration Technology, 2014, 34(4): 31-37.
19	孙浩然. 基于图论的变频多联式空调系统模型开发及软件实现[D]. 上海: 上海交通大学, 2017.
	Sun H R. Graph theory based system modeling and software implementation for variable refrigerant volume air conditioners [D]. Shanghai: Shanghai Jiao Tong University, 2017.
20	Ren T, Ding G L, Wang T T, et al. A general three-dimensional simulation approach for micro-channel heat exchanger based on graph theory [J]. Applied Thermal Engineering, 2013, 59(1/2): 660-674.
21	许旭东, 赵丹, 丁国良, 等. 冰箱用微通道冷凝器分相集总参数模型[J]. 化工学报, 2016, 67(S2): 217-222.
	Xu X D, Zhao D, Ding G L, et al. Lumped parameter model for microchannel condenser of refrigerators [J]. CIESC Journal, 2016, 67(S2): 217-222.
22	郭梦茹, 蔡姗姗, 陈焕新, 等. 翅片管式冷凝器性能分析及多目标优化[J]. 制冷与空调, 2018, 18(4): 93-98.
	Guo M R, Cai S S, Chen H X, et al. Performance analysis and multi-objective optimization of finned-tube condenser [J]. Refrigeration and Air-Conditioning, 2018, 18(4): 93-98.
23	孙浩然, 段钟弟, 丁国良. 采用适用于小管径空调器关联式的换热器仿真软件开发[C]//上海市制冷学会2013年学术年会. 上海, 2013.
	Sun H R, Duan Z D, Ding G L. Deveopment of simulation tool with correlations suitable for small diameter tube heat exchanger[C]//Shanghai Institute of Refrigeration Annual Conference. Shanghai, 2013.
24	Hwang Y, Jin D H, Radermacher R. Refrigerant distribution in minichannel evaporator manifolds [J]. HVAC&R Research, 2007, 13(4): 543-555.
25	Saitoh S, Daiguji H, Hihara E. Correlation for boiling heat transfer of R-134a in horizontal tubes including effect of tube diameter [J]. International Journal of Heat and Mass Transfer, 2007, 50(25/26): 5215-5225.
26	Yu W H, France D M, Wambsganss M W, et al. Two-phase pressure drop, boiling heat transfer, and critical heat flux to water in a small-diameter horizontal tube [J]. International Journal of Multiphase Flow, 2002, 28(6): 927-941.
27	Lee H J, Lee S Y. Heat transfer correlation for boiling flows in small rectangular horizontal channels with low aspect ratios [J]. International Journal of Multiphase Flow, 2001, 27(12): 2043-2062.
28	马磊, 谷波, 田镇, 等. 基于新流动沸腾传热关联式的微通道平行流蒸发器数值模型[J]. 上海交通大学学报, 2017, 51(9): 1043-1049.
	Ma L, Gu B, Tian Z, et al. Numerical model of a microchannel parallel flow evaporator with new flow boiling heat transfer correlation [J]. Journal of Shanghai Jiao Tong University, 2017, 51(9): 1043-1049.
29	Zou Y, Hrnjak P S. Single-phase and two-phase flow pressure drop in the vertical header of microchannel heat exchanger [J]. International Journal of Refrigeration, 2014, 44: 12-22.

[1]	Yuanchao LIU, Bin GUAN, Jianbin ZHONG, Yifan XU, Xuhao JIANG, Duan LI. Investigation of thermoelectric transport properties of single-layer XSe₂(X=Zr/Hf) [J]. CIESC Journal, 2023, 74(9): 3968-3978.
[2]	Zhewen CHEN, Junjie WEI, Yuming ZHANG. System integration and energy conversion mechanism of the power technology with integrated supercritical water gasification of coal and SOFC [J]. CIESC Journal, 2023, 74(9): 3888-3902.
[3]	Yue CAO, Chong YU, Zhi LI, Minglei YANG. Industrial data driven transition state detection with multi-mode switching of a hydrocracking unit [J]. CIESC Journal, 2023, 74(9): 3841-3854.
[4]	Gang YIN, Yihui LI, Fei HE, Wenqi CAO, Min WANG, Feiya YAN, Yu XIANG, Jian LU, Bin LUO, Runting LU. Early warning method of aluminum reduction cell leakage accident based on KPCA and SVM [J]. CIESC Journal, 2023, 74(8): 3419-3428.
[5]	Chengying ZHU, Zhenlei WANG. Operation optimization of ethylene cracking furnace based on improved deep reinforcement learning algorithm [J]. CIESC Journal, 2023, 74(8): 3429-3437.
[6]	Zhaolun WEN, Peirui LI, Zhonglin ZHANG, Xiao DU, Qiwang HOU, Yegang LIU, Xiaogang HAO, Guoqing GUAN. Design and optimization of cryogenic air separation process with dividing wall column based on self-heat regeneration [J]. CIESC Journal, 2023, 74(7): 2988-2998.
[7]	Yuanzhe SHAO, Zhonggai ZHAO, Fei LIU. Quality-related non-stationary process fault detection method by common trends model [J]. CIESC Journal, 2023, 74(6): 2522-2537.
[8]	Xuejin GAO, Yuzhuo YAO, Huayun HAN, Yongsheng QI. Fault monitoring of fermentation process based on attention dynamic convolutional autoencoder [J]. CIESC Journal, 2023, 74(6): 2503-2521.
[9]	Shanghao LIU, Shengkun JIA, Yiqing LUO, Xigang YUAN. Optimization of ternary-distillation sequence based on gradient boosting decision tree [J]. CIESC Journal, 2023, 74(5): 2075-2087.
[10]	Laiming LUO, Jin ZHANG, Zhibin GUO, Haining WANG, Shanfu LU, Yan XIANG. Simulation and experiment of high temperature polymer electrolyte membrane fuel cells stack in the 1—5 kW range [J]. CIESC Journal, 2023, 74(4): 1724-1734.
[11]	Wenxuan XU, Jinbo JIANG, Xin PENG, Rixiu MEN, Chang LIU, Xudong PENG. Comparative study on leakage and film-forming characteristics of oil-gas seal with three-typical groove in a wide speed range [J]. CIESC Journal, 2023, 74(4): 1660-1679.
[12]	Shumin ZHENG, Pengcheng GUO, Jianguo YAN, Shuai WANG, Wenbo LI, Qi ZHOU. Experimental and predictive study on pressure drop of subcooled flow boiling in a mini-channel [J]. CIESC Journal, 2023, 74(4): 1549-1560.
[13]	Xuerong GU, Shuoshi LIU, Siyu YANG. Research on multi-parameter optimization method based on parallel EGO and surrogate-assisted model [J]. CIESC Journal, 2023, 74(3): 1205-1215.
[14]	Sheng’an ZHANG, Guilian LIU. Multi-objective optimization of high-efficiency solar water electrolysis hydrogen production system and its performance [J]. CIESC Journal, 2023, 74(3): 1260-1274.
[15]	Haiou YUAN, Fangjun YE, Shuo ZHANG, Yiqing LUO, Xigang YUAN. Synthesis of heat-integrated distillation sequences with intermediate heat exchangers [J]. CIESC Journal, 2023, 74(2): 796-806.