Convection Heat Transfer of CO2 at Supercritical Pressures in Microtubes

被引：5

作者：

Yang, Feng-Ye ^{[1
]}

Wang, Ke ^{[1
]}

Liu, Tong ^{[1
]}

Wang, Yong-qing ^{[1
]}

Liu, Zun-chao ^{[1
]}

机构：

[1] Zhengzhou Univ, Key Lab Proc Heat Transfer & Energy Saving Henan, Zhengzhou 450002, Peoples R China

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 2013年 / 36卷 / 12期

关键词：

Buoyancy; Computational fluid dynamics; Convection transfer; Supercritical CO2; CARBON-DIOXIDE; CYCLE;

D O I：

10.1002/ceat.201300245

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Convection heat transfer of supercritical pressure CO2 in microtubes as well as characteristics of fluid flow and heat transfer were investigated. Alterations of physical properties of supercritical CO2 and the impact of buoyancy on the heat transfer were analyzed when the inlet Reynolds (Re) number of CO2, diameter of heat exchanger, and inlet Re of cooling water were changed. The temperatures of hot fluid in numerical simulations from several classical turbulence calculation models were compared with experimental results from the literature. The physical properties of CO2 changed significantly around the critical point, causing a distinct decline of buoyancy and strengthening of heat transfer.

引用

页码：2051 / 2056

页数：6

共 50 条

[1] Research of convection heat transfer of CO2 at supercritical pressures in a vertical tube
Liu, Min-Shan
Yang, Feng-Ye
Dong, Qi-Wu
Zhang, Li-Na
Cao, Kan
[J]. Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics, 2012, 33 (11): : 1929 - 1931
[2] Convection heat transfer of CO2 at supercritical pressures in tube during cooling
Zhao, Chen-Ru
Jiang, Pei-Xue
[J]. Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics, 2009, 30 (03): : 456 - 460
[3] Convection Heat Transfer of CO2 at Supercritical Pressures in a Vertical Mini Tube
Jiang, Pei-Xue
Li, Zhi-Hui
Zhao, Chen-Ru
[J]. PROCEEDINGS OF THE ASME MICRO/NANOSCALE HEAT AND MASS TRANSFER INTERNATIONAL CONFERENCE, VOL 3, 2010, : 245 - 252
[4] Cooling Heat Transfer of Supercritical CO2 in Diverging and Converging Microtubes
Yi, Zhengming
Xu, Yong
Chen, Xiaolin
[J]. CHEMICAL ENGINEERING & TECHNOLOGY, 2022, 45 (02) : 302 - 308
[5] Experimental investigation of convection heat transfer of CO2 at supercritical pressures in a vertical circular tube
Li, Zhi-Hui
Jiang, Pei-Xue
Zhao, Chen-Ru
Zhang, Yu
[J]. EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2010, 34 (08) : 1162 - 1171
[6] A computational study of convection heat transfer to CO2 at supercritical pressures in a vertical mini tube
He, S
Jiang, PX
Xu, YJ
Shi, RF
Kim, WS
Jackson, JD
[J]. INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2005, 44 (06) : 521 - 530
[7] Heat transfer model for horizontal flows of CO2 at supercritical pressures in terms of mixed convection
Kim, Tae Ho
Kwon, Jin Gyu
Park, Joo Hyun
Park, Hyun Sun
Kim, Moo Hwan
[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2019, 131 : 1117 - 1128
[8] Experimental and numerical study of convection heat transfer of CO2 at supercritical pressures in vertical porous tubes
Jiang, Pei-Xue
Shi, Run-Fu
Zhao, Chen-Ru
Xu, Yi-Jun
[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2008, 51 (25-26) : 6283 - 6293
[9] Heat transfer in CO2 at supercritical pressures in an eccentric annular channel
Bae, Yoon-Yeong
[J]. NUCLEAR ENGINEERING AND DESIGN, 2013, 265 : 1036 - 1044
[10] Transient Natural Convection Heat Transfer to CO2 in the Supercritical Region
Reddy, G. Janardhana
Basha, Hussain
Narayanan, N. S. Venkata
[J]. JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2018, 140 (09):

← 1 2 3 4 5 →