CONDENSATION HEAT TRANSFER OF R-134a IN A HELICAL PIPE

被引：0
|
作者：
Han Ji-tian [1 ]
Lin Cheng-xian [2 ]
Ebadian, M. A. [2 ]
机构：
[1] Shandong Univ, Sch Energy Source & Power Engn, Jinan 250061, Peoples R China
[2] Florida Int Univ, Hemispher Ctr Environm Technol, Miami, FL 33174 USA
来源：
JOURNAL OF HYDRODYNAMICS | 2004年 / 16卷 / 02期
基金：
中国国家自然科学基金;
关键词：
condensation heat transfer; convective condensation; refrigerants; helicoidal pipes;
D O I：
暂无
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Alternative refrigerant R-134a is considered to be ozone-friendly and a potential candidate for replacing the refrigerant R-12 in refrigeration and air-conditioning applications. This paper presents an experimental investigation on condensation heat transfer of the alternative refrigerant R-134a flowing inside a helicoidal pipe with the cooling water flowing through the annular helicoidal passage in a counter-flow direction. The heat transfer experiments were performed for R-134a mass flow flux ranging from 100 to 420 kg/m(2)s with the superheat of the inlet vapor of 2. 8 degrees C and 8. 3 degrees C, respectively. The average Nusselt numbers were experimentally determined for a helicoidal pipe with the helix axis of vertical direction. In addition, the obtained experimental results were compared with the results for R-134a condensation in straight and helicoidal pipes available in the open literature.
引用
收藏
页码：144 / 150
页数：7
相关论文
共 50 条
  • [1] CONDENSATION HEAT TRANSFER OF R-134a IN A HELICAL PIPE
    EBADIAN M. A.
    [J]. Journal of Hydrodynamics, 2004, (02) : 144 - 150
  • [2] Condensation heat transfer and pressure drop characteristics of R-134a in an annular helical pipe
    Han, JT
    Lin, CX
    Ebadian, MA
    [J]. INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2005, 32 (10) : 1307 - 1316
  • [3] Condensation heat transfer and pressure drop of refrigerant R-134a in a small pipe
    Yan, YY
    Lin, TF
    [J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1999, 42 (04) : 697 - 708
  • [4] HEAT TRANSFER PERFORMANCE DURING CONDENSATION OF R-134A
    Al-Hajeri, M. H.
    Koluib, A. M.
    [J]. HT2008: PROCEEDINGS OF THE ASME SUMMER HEAT TRANSFER CONFERENCE - 2008, VOL 2, 2009, : 517 - 524
  • [5] Condensation heat transfer of R-134a flow inside helical pipes at different orientations
    Yu, B
    Han, JT
    Kang, HJ
    Lin, CX
    Awwad, A
    Ebadian, MA
    [J]. INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2003, 30 (06) : 745 - 754
  • [6] Investigation of the dynamic heat transfer coefficient of R-134a in a horizontal pipe
    Rueckert, Jan Philipp
    Schmitz, Gerhard
    [J]. SCIENCE AND TECHNOLOGY FOR THE BUILT ENVIRONMENT, 2015, 21 (05) : 578 - 584
  • [7] An improved correlation for condensation heat transfer of R-134a in horizontal tubes
    Li, PW
    Wang, HS
    Chen, M
    Tao, WQ
    [J]. MULTIPHASE FLOW AND HEAT TRANSFER, 1999, : 727 - 735
  • [8] A Comparative Study on the Condensation Heat Transfer of R-513A as an Alternative to R-134a
    Karageorgis, Andreas
    Hinopoulos, George
    Kim, Man-Hoe
    [J]. MACHINES, 2021, 9 (06)
  • [9] Condensation heat transfer and pressure drop of refrigerant R-134a in a plate heat exchanger
    Yan, YY
    Lio, HC
    Lin, TF
    [J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1999, 42 (06) : 993 - 1006
  • [10] Heat transfer performance during condensation of R-134a inside helicoidal tubes
    Al-Hajeri, M. H.
    Kolulb, A. M.
    Mosaad, M.
    Al-Kulaib, S.
    [J]. ENERGY CONVERSION AND MANAGEMENT, 2007, 48 (08) : 2309 - 2315
12345