CFD modelling of a two-phase closed thermosyphon charged with R134a and R404a

被引：131

作者：

Fadhl, Bandar ^{[1
,3
]}

Wrobel, Luiz C. ^{[1
]}

Jouhara, Hussam ^{[2
]}

机构：

[1] Brunel Univ London, Coll Engn Design & Phys Sci, Inst Mat & Mfg, Uxbridge UB8 3PH, Middx, England

[2] Brunel Univ London, Coll Engn Design & Phys Sci, Inst Energy Futures, RCUK Ctr Sustainable Energy Use Food Chains CSEF, Uxbridge UB8 3PH, Middx, England

[3] Umm Al Qura Univ, Dept Mech Engn, Mecca, Saudi Arabia

来源：

APPLIED THERMAL ENGINEERING | 2015年 / 78卷

基金：

英国工程与自然科学研究理事会;

关键词：

Two-phase thermosyphon; Computational fluid dynamics (CFD); Phase change material; Pool boiling; Liquid film condensation; R134a; R404a; HEAT-PIPE; PERFORMANCE; SIMULATION; CONVECTION; WATER;

D O I：

10.1016/j.applthermaleng.2014.12.062

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper examines the application of CFD modelling to simulate the two-phase heat transfer mechanisms in a wickless heat pipe, also called a thermosyphon. Two refrigerants, R134a and R404a, were selected as the working fluids of the investigated thermosyphon. A CFD model was built to simulate the details of the two-phase flow and heat transfer phenomena during the start-up and steady-state operation of the thermosyphon. The CFD simulation results were compared with experimental measurements, with good agreement obtained between predicted temperature profiles and experimental temperature data, thus confirming that the CFD model was successful in reproducing the heat and mass transfer processes in the R134a and R404a charged thermosyphon, including the pool boiling in the evaporator section and the liquid film in the condenser section. (C) 2014 Elsevier Ltd. All rights reserved.

引用

下载

页码：482 / 490

页数：9

共 50 条

[1] Modeling of a Two-Phase Region Length of the Condensation of R134a and R404A Refrigerants in Pipe Minichannels With Periodic Hydrodynamic Instabilities
Kuczynski, Waldemar
Charun, Henryk
HEAT TRANSFER ENGINEERING, 2014, 35 (09) : 850 - 862
[2] Adsorption characteristics evaluation of R134A and R404A on different adsorbents
Kilic, M.
Gonul, E.
BULGARIAN CHEMICAL COMMUNICATIONS, 2016, 48 : 306 - 311
[3] Investigation of the two-phase closed thermosyphon filled with R1234yf alternative to R134a: energy and environmental analysis
Yildirim, Ragip
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2023, 148 (03) : 1061 - 1072
[4] Investigation of the two-phase closed thermosyphon filled with R1234yf alternative to R134a: energy and environmental analysis
Ragıp Yıldırım
Journal of Thermal Analysis and Calorimetry, 2023, 148 : 1061 - 1072
[5] Failure analysis of condensing units for refrigerators with refrigerant R134a, R404A
Bogdanovska, Gabriela
Molnar, Vieroslav
Fedorko, Gabriel
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2019, 100 : 208 - 219
[6] Comparative investigations of the condensation of R134a and R404A refrigerants in pipe minichannels
Bohdal, Tadeusz
Charun, Henryk
Sikora, Malgorzata
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2011, 54 (9-10) : 1963 - 1974
[7] Experimental investigation of a two-phase closed thermosyphon with Al2O3/R134a nanorefrigerant
Anand, R. S.
Jawahar, C. P.
Brusly Solomon, A.
Bellos, Evangelos
Ajay Vasanth, X.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING, 2024, 238 (01) : 56 - 66
[8] Experimental investigation of R600a as a low GWP substitute to R134a in the closed-loop two-phase thermosyphon of the mini thermoelectric refrigerator
Basaran, Anil
APPLIED THERMAL ENGINEERING, 2022, 211
[9] Experimental performances of a two-phase R134a ejector
Ameur, K.
Aidoun, Z.
Ouzzane, M.
EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2018, 97 : 12 - 20
[10] Overview of low GWP mixtures for the replacement of HFC refrigerants: R134a, R404A and R410A
Heredia-Aricapa, Y.
Belman-Flores, J. M.
Mota-Babiloni, A.
Serrano-Arellano, J.
Garcia-Pabon, Juan J.
INTERNATIONAL JOURNAL OF REFRIGERATION, 2020, 111 : 113 - 123

← 1 2 3 4 5 →