Heat transfer and structure of flow at boiling of refrigerant R134a in channels with inserts in the form of finned twisted tape

被引：1
|
作者：
Shishkin, A. V. [1 ]
Tarasevich, S. E. [1 ]
机构：
[1] Kazan Natl Res Tech Univ, Kazan, Russia
来源：
6TH INTERNATIONAL CONFERENCE HEAT AND MASS TRANSFER AND HYDRODYNAMICS IN SWIRLING FLOWS | 2018年 / 980卷
关键词：
D O I：
10.1088/1742-6596/980/1/012012
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The paper presents the results of experimental study of heat transfer for the refrigerant R134a flow in the channels with finned twisted tape inserts at bubble boiling. The flow regimes implemented under the given conditions are shown. The stable cord-like flows appear at boiling in channels with twisted tape inserts and high vapor content when the liquid phase moves in the form of a stream (cord) along the central part of the tape, which is not an active heat exchange surface. At boiling this can lead to an increase in the length required for complete liquid evaporation. Existing geometric modifications of twisted tapes are used in the heat-exchange equipment at forced convection of the coolant and do not solve the problem of cord-like flows elimination. The present work discusses the experimental study of heat transfer at boiling of refrigerant R134a in the channels with twisted tape inserts that have fins on its surface.
引用
收藏
页数：5
相关论文
共 50 条
  • [1] Experiment on Boiling Heat Transfer of Refrigerant R134a in Mini-channels
    Zhan, Hongbo
    Shen, Hao
    Wen, Tao
    Zhang, Dalin
    [J]. Transactions of Nanjing University of Aeronautics and Astronautics, 2019, 36 (01): : 80 - 87
  • [2] Experiment on Boiling Heat Transfer of Refrigerant R134a in Mini-channels
    ZHAN Hongbo
    SHEN Hao
    WEN Tao
    ZHANG Dalin
    [J]. Transactions of Nanjing University of Aeronautics and Astronautics, 2019, 36 (01) : 80 - 87
  • [3] Flow Boiling Heat Transfer with Twisted Tape Inserts
    Shatto, D. P.
    Peterson, G. P.
    [J]. JOURNAL OF ENHANCED HEAT TRANSFER, 2017, 24 (1-6) : 21 - 45
  • [4] Vertical flow boiling of refrigerant R134a in small channels
    Agostini, B
    Bontemps, A
    [J]. INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 2005, 26 (02) : 296 - 306
  • [5] A review of flow boiling heat transfer with twisted tape inserts
    Shatto, DP
    Peterson, GP
    [J]. JOURNAL OF ENHANCED HEAT TRANSFER, 1996, 3 (04) : 233 - 257
  • [6] Influence of Microfin Tube on Heat Transfer during Flow Boiling of R134a Refrigerant
    Vidhyarthi, Neeraj Kumar
    Deb, Sandipan
    Gajghate, Sameer Sheshrao
    Cardoso, Elaine Maria
    Das, Mantu
    Pal, Sagnik
    Das, Ajoy Kumar
    [J]. JOURNAL OF ENGINEERING, 2024, 2024
  • [7] The Investigation on Flow Boiling Heat Transfer of R134a in Micro-channels
    LI Xuejiao
    JIA Li
    [J]. Journal of Thermal Science, 2015, 24 (05) : 452 - 462
  • [8] The investigation on flow boiling heat transfer of R134a in micro-channels
    Xuejiao Li
    Li Jia
    [J]. Journal of Thermal Science, 2015, 24 : 452 - 462
  • [9] The Investigation on Flow Boiling Heat Transfer of R134a in Micro-channels
    Li Xuejiao
    Jia Li
    [J]. JOURNAL OF THERMAL SCIENCE, 2015, 24 (05) : 452 - 462
  • [10] EXPERIMENTAL INVESTIGATION AND DISCUSSION OF HEAT TRANSFER MECHANISMS DURING FLOW BOILING IN MINI-CHANNELS USING REFRIGERANT R134A
    La Forgia, Nicolas
    Dorao, Carlos A.
    Fernandino, Maria
    [J]. PROCEEDINGS OF THE ASME 14TH INTERNATIONAL CONFERENCE ON NANOCHANNELS, MICROCHANNELS, AND MINICHANNELS, 2016, 2016,
12345