混合工质R447A在水平管内的流动沸腾换热特性

doi:10.16085/j.issn.1000-6613.2019-2092

摘要/Abstract

摘要：

R447A是一种三元非共沸混合工质，已成为高温室效应工质R410A潜在的替代品之一。本文通过研究R447A在内径为10.6mm的水平光滑管内的流动沸腾传热特性，获得了R447A在水平光滑管内的流动沸腾传热数据以及传热现象，并分析了不同因素对R447A传热效果的影响。实验条件为：热流密度5~20kW/m²，质量流速100~300kg/(m²·s)，蒸发温度5~25℃。实验结果表明：R447A的传热系数在0.8~4kW/(m²·K)之间。同时对R410A进行了相同工况下传热系数测试，发现热流密度对R410A传热系数的影响要大于对R447A的影响，而干度和质量流速则对R447A的传热影响更为显著。本文基于实验数据及实验现象发展了一种分干度区预测传热系数的新模型，新模型对R447A换热系数预测的平均偏差为+6.21%，绝对偏差为+12.96%。此研究结果可为这种工质的换热器设计提供帮助。

关键词: 混合物, 流动, R447A, 水平光滑管, 传热, 沸腾

Abstract:

The object of this study, R447A, is a ternary non-azeotropic refrigerant mixture as a potential substitute of R410A with high GWP(Global Warming Potential). Flow boiling heat transfer characteristics of R447A were investigated in the horizontal smooth tube with inner diameter (I.D.) of 10.6mm. The heat flux ranged in 5—20kW/m², the evaporating temperature ranged in 5—25℃, and the mass flux ranged in 100—300kg/(m²·s). This study shows that under the conditions of this experiment, the heat transfer coefficients of R447A are between 0.8—4kW/(m²·K). In addition, the heat transfer coefficients of R410A were also tested under the same conditions. It was found that the influence of heat flux on the heat transfer coefficients of R410A was greater than those of R447A, while the influence of vapor quality and mass flow rate on the heat transfer coefficient of R447A was more significant. This paper proposed a new method that divides vapor quality into two part to predict heat transfer coefficients. A new prediction correlation was developed with a mean deviation of +6.21%, an absolute deviation of +12.96%. The results of this study can be helpful to design heat exchangers for R447A.

Key words: mixture, flow, R447A, smooth horizontal tube, heat transfer, boiling

中图分类号:

TK124

田向东, 李敏霞, 郭强, 许文杰, 杨林. 混合工质R447A在水平管内的流动沸腾换热特性[J]. 化工进展, 2020, 39(10): 3900-3908.

Xiangdong TIAN, Minxia LI, Qiang GUO, Wenjie XU, Lin YANG. Flow boiling heat transfer of the refrigerant mixture R447A in a horizontal smooth tube[J]. Chemical Industry and Engineering Progress, 2020, 39(10): 3900-3908.

参考文献

1	KASAEIAN A, HOSSEINI S M, SHEIKHPOUR M, et al. Applications of eco-friendly refrigerants and nanorefrigerants: a review[J]. Renewable and Sustainable Energy Reviews, 2018, 96: 91-99.
2	林恩新, 牛永明, 霍宏祥, 等. 家用空调器低GWP制冷剂试验研究[C]//第七届中国制冷空调行业信息大会论文集，中国制冷空调工业协会, 2014: 59-65.
2	LIN Enxin, NIU Yongming, HUO Hongxiang, et al. Experimental study on low GWP refrigerant for domestic air conditioners[C]//Proceedings of the 7th China refrigeration and air conditioning industry information conference. China Refrigeration and Air-Conditioning Industry Association, 2014: 59-65.
3	JIGE D, SAGAWA K, INOUE N. Effect of tube diameter on boiling heat transfer and flow characteristic of refrigerant R32 in horizontal small-diameter tubes[J]. International Journal of Refrigeration, 2017, 76: 206-218.
4	HE GUOGENG, ZHOU SAI, LI DONGDONG, et al. Experimental study on the flow boiling heat transfer characteristics of R32 in horizontal tubes[J]. International Journal of Heat and Mass Transfer, 2018, 125: 943-958.
5	LILLO G, MASTRULLO R, MAURO A W, et al. Flow boiling of R32 in a horizontal stainless steel tube with 6.00mm ID. experiments, assessment of correlations and comparison with refrigerant R410A[J]. International Journal of Refrigeration, 2019, 97: 143-156.
6	ZHU Yu, WU Xiaomin, ZHAO Ran. R32 flow boiling in horizontal mini channels: Part Ⅱ. Flow-pattern based prediction methods for heat transfer and pressure drop[J]. International Journal of Heat and Mass Transfer, 2017, 115: 1233-1244.
7	PIERRE PARDO, LOUIS CHARBONNIER, MICHèLE MONDPT. Evaluation of R-410A refrigerant alternatives in a residential reversible air to-water heat pump[C]//Purdue:16th International Refrigeration and Air Conditioning Conference, 2016-06-11.
8	赵镇南. 传热学[M]. 2版. 北京: 高等教育出版社, 2008.
8	ZHAO Zhennan. Heat transfer[M]. 2nd ed. Beijing: High Education Press, 2008.
9	李鹏. 制冷剂氟乙烷(HFC-161)管内流动沸腾换热特性研究[D]. 杭州: 浙江大学, 2013.
9	LI Peng. Study on the heat transfer characteristics of the refrigerant fluoroethane(HFC-161) flow boiling inside tubes[D]. Hangzhou: Zhejiang University, 2013.
10	LI Minxia, GUO Qiang, LV Jiatong,et al. Research on condensation heat transfer characteristics of R447A, R1234ze, R134a and R32 in multi-port micro-channel tubes [J]. International Journal of Heat and Mass Transfer, 2018, 118: 637-650.
11	代宝民. 扁材多孔管内单相流动换热的理论分析和实验研究[D]. 天津: 天津大学, 2012.
11	DAI Baomin. Experimental and theoretical research on single-phase flow and heat transfer characteristics in multi-port extruded tubes[D]. Tianjin: Tianjin University, 2012.
12	FILHO E P B, BARBIERI P E L. Flow boiling performance in horizontal microfinned copper tubes with the same geometric characteristics[J]. Experimental Thermal & Fluid Science, 2011, 35(5): 832-840.
13	CELEN A, CEBI ALICAN, AHMET SELIM DALKILIC. Investigation of boiling heat transfer characteristics of R134a flowing in smooth and microfin tubes[J]. International Communications in Heat and Mass Transfer, 2018, 93: 21-33.
14	CAREY VAN P. Liquid-vapor phase-change phenomena[M]. United States: Hemisphere Publishing Corporation, 1991.
15	KUNDU A, KUMAR R, GUPTA A. Comparative experimental study on flow boiling heat transfer characteristics of pure and mixed refrigerants[J]. International Journal of Refrigeration, 2014, 45:136-147.
16	LIU Z, WINTERTON R H S. A general correlation for saturated and subcooled flow boiling in tubes and annuli, based on a nucleate pool boiling equation[J]. International Journal of Heat and Mass Transfer, 1991, 34(11): 2759-2766.
17	GUNGOR K E, WINTERTON R H S. A general correlation for flow boiling in tubes and annuli[J]. International Journal of Heat and Mass Transfer, 1986, 29(3): 351-358.
18	KANDLIKAR S G. A general correlation for saturated two-phase flow boiling heat transfer inside horizontal and vertical tubes[J]. Journal of Heat Transfer, 1990, 112(1): 219-228.
19	JUNG D S, MCLINDEN M, RADERMACHER R, et al. A study of flow boiling heat transfer with refrigerant mixtures[J]. International Journal of Heat & Mass Transfer, 1989, 32(9): 1751-1764.
20	FUJITA Y, TSUTSUI M. Experimental investigation in pool boiling heat transfer of ternary mixture and heat transfer correlation[J]. Experimental Thermal & Fluid Science, 2002, 26(2): 237-244.
21	STEPHAN K, ABDELSALAM M. Heat transfer correlation for natural convection boiling[J]. International Journal of Heat & Mass Transfer, 1980, 23(1): 73-87.

[1]	徐若思, 谭蔚. C形管池沸腾两相流流场模拟与流固耦合分析[J]. 化工进展, 2023, 42(S1): 47-55.
[2]	肖辉, 张显均, 兰治科, 王苏豪, 王盛. 液态金属绕流管束流动传热进展[J]. 化工进展, 2023, 42(S1): 10-20.
[3]	赵晨, 苗天泽, 张朝阳, 洪芳军, 汪大海. 负压状态窄缝通道乙二醇水溶液传热特性[J]. 化工进展, 2023, 42(S1): 148-157.
[4]	陈林, 徐培渊, 张晓慧, 陈杰, 徐振军, 陈嘉祥, 密晓光, 冯永昌, 梅德清. 液化天然气绕管式换热器壳侧混合工质流动及传热特性[J]. 化工进展, 2023, 42(9): 4496-4503.
[5]	罗成, 范晓勇, 朱永红, 田丰, 崔楼伟, 杜崇鹏, 王飞利, 李冬, 郑化安. 中低温煤焦油加氢反应器不同分配器中液体分布的CFD模拟[J]. 化工进展, 2023, 42(9): 4538-4549.
[6]	卜治丞, 焦波, 林海花, 孙洪源. 脉动热管计算流体力学模型与研究进展[J]. 化工进展, 2023, 42(8): 4167-4181.
[7]	汪健生, 张辉鹏, 刘雪玲, 傅煜郭, 朱剑啸. 多孔介质结构对储层内流动和换热特性的影响[J]. 化工进展, 2023, 42(8): 4212-4220.
[8]	王云刚, 焦健, 邓世丰, 赵钦新, 邵怀爽. 冷凝换热与协同脱硫性能实验分析[J]. 化工进展, 2023, 42(8): 4230-4237.
[9]	孙征楠, 李洪晶, 荆国林, 张福宁, 颜飚, 刘晓燕. EVA及其改性聚合物在原油降凝剂领域的应用[J]. 化工进展, 2023, 42(6): 2987-2998.
[10]	郭文杰, 翟玉玲, 陈文哲, 申鑫, 邢明. Al₂O₃-CuO/水混合纳米流体对流传热性能及热经济性分析[J]. 化工进展, 2023, 42(5): 2315-2324.
[11]	刘厚励, 顾中浩, 阳康, 张莉. 3D打印槽道结构槽宽对池沸腾传热特性的影响[J]. 化工进展, 2023, 42(5): 2282-2288.
[12]	张晨宇, 王宁, 徐洪涛, 罗祝清. 纳米颗粒强化传热的多级潜热储热器性能评价[J]. 化工进展, 2023, 42(5): 2332-2342.
[13]	王文昊, 何立东, 王学志, 闫泽, 贾兴运, 刘春瑞. 偏心工况下梳齿、蜂窝与蜂窝-梳齿密封的泄漏特性[J]. 化工进展, 2023, 42(4): 1698-1707.
[14]	马润梅, 杨海超, 李正大, 李双喜, 赵祥, 章国庆. 表面强化镀层对高速轴承腔密封端面变形及摩擦磨损影响分析[J]. 化工进展, 2023, 42(4): 1688-1697.
[15]	刘佳, 梁德青, 李君慧, 林德才, 吴思婷, 卢富勤. 油水体系水合物浆液流动保障研究进展[J]. 化工进展, 2023, 42(4): 1739-1759.