| Citation: | HAN Xiao, LIU Ran, ZHANG Lei, et al. Flow and heat transfer performance analysis of wavy fin-and-tube heat exchanger with winglet type vortex generator under low-pressure[J]. Journal of Aerospace Power, 2025, 40（5）：20230682 doi: 10.13224/j.cnki.jasp.20230682
|
Fin-and-tube heat exchangers are widely used in cabin ambient temperature control of aircraft under low-pressure conditions. In order to study the air-side heat transfer characteristics of fin-and-tube heat exchangers under low-pressure conditions, the air-side flow heat transfer characteristics of the fin-tubed heat exchangers under low pressure were studied numerically in ambient pressure of 5—101 kPa and inlet air velocity of 0.5—6 m/s. The research results showed that with the decrease of ambient pressure, the heat transfer coefficient and pressure drop on the air-side decreased significantly. When the air pressure was 25 kPa, the convective heat transfer coefficient on the air side decreased by 69.9%—75.6% compared with that under normal pressure. Predictive models for the air-side heat transfer factor
| [1] |
SADEGHIANJAHROMI A,WANG Chichuan. Heat transfer enhancement in fin-and-tube heat exchangers: a review on different mechanisms[J]. Renewable and Sustainable Energy Reviews,2021,137: 110470. doi: 10.1016/j.rser.2020.110470
|
| [2] |
SAYED AHMED S A E,MESALHY O M,ABDELATIEF M A. Flow and heat transfer enhancement in tube heat exchangers[J]. Heat and Mass Transfer,2015,51(11): 1607-1630. doi: 10.1007/s00231-015-1669-1
|
| [3] |
ZHANG Kai,LI Mingjia,LIU Hua,et al. Experimental and numerical study and comparison of performance for herringbone wavy fin and enhanced fin with convex-strips in fin-and-tube heat exchanger[J]. International Journal of Heat and Mass Transfer,2021,175: 121390. doi: 10.1016/j.ijheatmasstransfer.2021.121390
|
| [4] |
PONGSOI P,PIKULKAJORN S,WANG Chichuan,et al. Effect of number of tube rows on the air-side performance of crimped spiral fin-and-tube heat exchanger with a multipass parallel and counter cross-flow configuration[J]. International Journal of Heat and Mass Transfer,2012,55(4): 1403-1411. doi: 10.1016/j.ijheatmasstransfer.2011.09.064
|
| [5] |
SHARIFI K,SABETI M,RAFIEI M,et al. Computational fluid dynamics (CFD) technique to study the effects of helical wire inserts on heat transfer and pressure drop in a double pipe heat exchanger[J]. Applied Thermal Engineering,2018,128: 898-910. doi: 10.1016/j.applthermaleng.2017.08.146
|
| [6] |
FATHI S,YAZDI M,ADAMIAN A. Numerical investigation of heat transfer enhancement in heat sinks using multiple rows vortex generators[J]. Journal of Theoretical and Applied Mechanics,2020,58(1): 97-108. doi: 10.15632/jtam-pl/115308
|
| [7] |
LIU Aoke,WANG Guanghui,WANG Dingbiao,et al. Study on the thermal and hydraulic performance of fin-and-tube heat exchanger based on topology optimization[J]. Applied Thermal Engineering,2021,197: 117380. doi: 10.1016/j.applthermaleng.2021.117380
|
| [8] |
CHE Min,ELBEL S. Experimental quantification of air-side row-by-row heat transfer coefficients on fin-and-tube heat exchangers[J]. International Journal of Refrigeration,2021,131: 657-665. doi: 10.1016/j.ijrefrig.2021.06.012
|
| [9] |
WU Jiafeng,LIU Peng,YU Minjie,et al. Thermo-hydraulic performance and exergy analysis of a fin-and-tube heat exchanger with sinusoidal wavy winglet type vortex generators[J]. International Journal of Thermal Sciences,2022,172: 107274. doi: 10.1016/j.ijthermalsci.2021.107274
|
| [10] |
TANG Yuxiao,YANG Konghua,LIU Chunbao,et al. Thermohydraulic characteristics of water-cooling oil heat exchanger with vortex generators and its enhanced heat transfer mechanism[J]. International Journal of Thermal Sciences,2023,192: 108429. doi: 10.1016/j.ijthermalsci.2023.108429
|
| [11] |
FENG Zhenfei,JIANG Ping,ZHENG Siyao,et al. Experimental and numerical investigations on the effects of insertion-type longitudinal vortex generators on flow and heat transfer characteristics in square minichannels[J]. Energy,2023,278: 127855. doi: 10.1016/j.energy.2023.127855
|
| [12] |
WANG Jiangbo,FU Ting,ZENG Liangcai,et al. Heat transfer performance of internal flow by inserting punched and non-punched vortex generators[J]. International Journal of Thermal Sciences,2023,186: 108135. doi: 10.1016/j.ijthermalsci.2022.108135
|
| [13] |
HE Y L,HAN H,TAO W Q,et al. Numerical study of heat-transfer enhancement by punched winglet-type vortex generator arrays in fin-and-tube heat exchangers[J]. International Journal of Heat and Mass Transfer,2012,55(21/22): 5449-5458.
|
| [14] |
HAN Hui,WANG Shaowei,SUN Li,et al. Numerical study of thermal and flow characteristics for a fin-and-tube heat exchanger with arc winglet type vortex generators[J]. International Journal of Refrigeration,2019,98: 61-69. doi: 10.1016/j.ijrefrig.2018.10.021
|
| [15] |
LIU Xiaoqin,WANG Min,LIU Hengheng,et al. Numerical analysis on heat transfer enhancement of wavy fin-tube heat exchangers for air-conditioning applications[J]. Applied Thermal Engineering,2021,199: 117597. doi: 10.1016/j.applthermaleng.2021.117597
|
| [16] |
张嘉文,柳建华,张良,等. 低气压下翅片管换热器空气侧换热特性的实验研究[J]. 热能动力工程,2020,35(5): 87-91. ZHANG Jiawen,LIU Jianhua,ZHANG Liang,et al. Experimental study of air side heat transfer at low ambient pressure[J]. Journal of Engineering for Thermal Energy and Power,2020,35(5): 87-91. (in Chinese
ZHANG Jiawen, LIU Jianhua, ZHANG Liang, et al. Experimental study of air side heat transfer at low ambient pressure[J]. Journal of Engineering for Thermal Energy and Power, 2020, 35(5): 87-91. (in Chinese)
|
| [17] |
JIA Runze,WANG Yichun,GUO Jin,et al. Research on the heat transfer and flow characteristics of fin-tube exchanger under low pressure environment[J]. Applied Thermal Engineering,2017,112: 1163-1171. doi: 10.1016/j.applthermaleng.2016.06.137
|
| [18] |
JIA Runze,WANG Yichun,ZHANG Xilong,et al. Research on the heat and mass transfer characteristics of fin-tube exchanger under low pressure environment[J]. Applied Thermal Engineering,2017,115: 692-701. doi: 10.1016/j.applthermaleng.2017.01.012
|
| [19] |
LI Yawen,WANG Yichun,WAN Rui,et al. Study on the air-side flow and heat transfer characteristics of corrugated fin under low-pressure environment[J]. Experimental Heat Transfer,2022,35(1): 62-78. doi: 10.1080/08916152.2020.1818886
|
| [20] |
WAN Rui,WANG Yichun,KAVTARADZE R,et al. Research on the air-side thermal hydraulic performance of louvered fin and flat tube heat exchangers under low-pressure environment[J]. Experimental Heat Transfer,2020,33(1): 81-99. doi: 10.1080/08916152.2019.1570985
|
| [21] |
WANG Chichuan,CHI Kuanyu. Heat transfer and friction characteristics of plain fin-and-tube heat exchangers: Part Ⅰ new experimental data[J]. International Journal of Heat and Mass Transfer,2000,43(15): 2681-2691. doi: 10.1016/S0017-9310(99)00332-4
|
DownLoad:
