Experimental investigation on boiling heat transfer and pressure drop of R245fa in a horizontal micro-fin tube

被引:4
|
作者
Wang, Zhi-qi [1 ]
He, Ni [1 ]
Xia, Xiao-xia [1 ,2 ]
Liu, Li-wen [1 ]
机构
[1] Xiangtan Univ, Sch Mech Engn, Xiangtan 411005, Peoples R China
[2] Cent S Univ, Sch Energy Sci & Engn, Changsha 410083, Peoples R China
基金
中国国家自然科学基金;
关键词
boiling heat transfer; frictional pressure drop; prediction correlations; micro-fin tube; R245fa fluid; ORGANIC RANKINE-CYCLE; GENERAL CORRELATION; 2-PHASE FLOW; R134A; OPTIMIZATION; REFRIGERANTS; RECOVERY; DESIGN; ENERGY; R-134A;
D O I
10.1007/s11771-019-4246-9
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
An experimental investigation on the boiling heat transfer and frictional pressure drop of R245fa in a 7 mm horizontal micro-fin tube was performed. The results show that in terms of flow boiling heat transfer characteristics, boiling heat transfer coefficient (HTC) increases with mass velocity of R245fa, while it decreases with the increment of saturation temperature and heat flux. With the increase of vapor quality, HTC has a maximum and the corresponding vapor quality is about 0.4, which varies with the operating conditions. When vapor quality is larger than the transition point, HTC can be promoted more remarkably at higher mass velocity or lower saturation temperature. Among the four selected correlations, KANDLIKAR correlation matches with 91.6% of experimental data within the deviation range of +/- 25%, and the absolute mean deviation is 11.2%. Also, in terms of frictional pressure drop characteristics of flow boiling, the results of this study show that frictional pressure drop increases with mass velocity and heat flux of R245fa, while it decreases with the increment of saturation temperature. MULLER-STEINHAGEN-HECK correlation shows the best prediction accuracy for frictional pressure drop among the four widely used correlations. It covers 84.1% of experimental data within the deviation range of +/- 20%, and the absolute mean deviation is 10.1%.
引用
收藏
页码:3200 / 3212
页数:13
相关论文
共 50 条
  • [1] Experimental investigation on boiling heat transfer and pressure drop of R245fa in a horizontal micro-fin tube水平微肋管内R245fa 沸腾换热及压降的实验研究
    Zhi-qi Wang
    Ni He
    Xiao-xia Xia
    Li-wen Liu
    [J]. Journal of Central South University, 2019, 26 : 3200 - 3212
  • [2] An experimental investigation of flow boiling instability of R245fa in a horizontal tube
    Li, Chong
    Fang, Xiande
    Dai, Qiumin
    [J]. PHYSICS OF FLUIDS, 2023, 35 (08)
  • [3] Boiling heat transfer and pressure drop of R290 in a micro-fin tube
    Zhao, Cong
    Guo, Hao
    Xue, Hanwen
    Nie, Feng
    Gong, Maoqiong
    Yang, Zhiqiang
    [J]. INTERNATIONAL JOURNAL OF REFRIGERATION, 2023, 155 : 195 - 206
  • [4] Experimental study on flow boiling heat transfer and pressure drop of R245fa/R141b mixture in a horizontal microfin tube
    Wang, Zhiqi
    Luo, Lan
    Xia, Xiaoxia
    He, Ni
    Peng, Deqi
    Wu, Shuying
    [J]. INTERNATIONAL JOURNAL OF REFRIGERATION, 2020, 118 : 72 - 83
  • [5] Experimental investigation on flow boiling heat transfer characteristics of R245fa/oil mixture in horizontal smooth tube
    Wang, Zhiqi
    Zhang, Sifeng
    Xia, Xiaoxia
    Luo, Lan
    Xu, Zehua
    Peng, Deqi
    Ren, Bowen
    [J]. INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 2024, 172
  • [6] Experimental investigation on flow boiling heat transfer of R245fa/R141b in horizontal smooth tube
    Wang, Zhiqi
    He, Ni
    Luo, Lan
    Xia, Xiaoxia
    Zuo, Qingsong
    [J]. Huagong Xuebao/CIESC Journal, 2020, 71 (04): : 1588 - 1596
  • [7] An experimental investigation of R245fa flow boiling heat transfer performance in horizontal and vertical tubes
    Cao, Shuang
    Wang, Guanghui
    Wu, Xuehong
    Yang, Wolong
    Hu, Chunxia
    [J]. INTERNATIONAL JOURNAL OF REFRIGERATION, 2024, 160 : 229 - 245
  • [8] Experimental investigation on high-temperature flow boiling heat transfer characteristics of R245fa in a horizontal circular tube
    Luo, Xianglong
    Xia, Yangkai
    Huang, Jikang
    He, Jiacheng
    Tu, Junping
    Chen, Jianyong
    Liang, Yingzong
    Yang, Zhi
    Chen, Ying
    [J]. APPLIED THERMAL ENGINEERING, 2023, 225
  • [9] Experimental Study On R245fa Condensation Heat Transfer Properties In Horizontal Tube
    Liu, Shengchun
    Dai, Baomin
    Zhang, Wenkai
    Li, Xueqiang
    [J]. CLEAN ENERGY FOR CLEAN CITY: CUE 2016 - APPLIED ENERGY SYMPOSIUM AND FORUM: LOW-CARBON CITIES AND URBAN ENERGY SYSTEMS, 2016, 104 : 419 - 424
  • [10] Experimental investigation of the heat transfer of supercritical R134a in a horizontal micro-fin tube
    Wang, Dabiao
    Dai, Xiaoye
    Tian, Ran
    Shi, Lin
    [J]. INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2019, 138 : 536 - 549