Experimental Investigation on the Condensation and Boiling Heat Transfer Performance of Refrigerant R245fa Outside Horizontal Stainless Steel Enhanced Tubes

JIANG Dong; CHEN Man; ZHANG Fu; ZHANG Nannan; CHENG Yulin; JI Wentao; TAO Wenquan

doi:10.7652/xjtuxb202604018

您当前的位置：

首页 >

文章列表页 >

Experimental Investigation on the Condensation and Boiling Heat Transfer Performance of Refrigerant R245fa Outside Horizontal Stainless Steel Enhanced Tubes

更新时间：2026-04-10

- Experimental Investigation on the Condensation and Boiling Heat Transfer Performance of Refrigerant R245fa Outside Horizontal Stainless Steel Enhanced Tubes
- Journal of Xi'an Jiaotong University Vol. 60, Issue 4, Pages: 218-226(2026)
- 作者机构：
  
  西安交通大学能源与动力工程学院，710049，西安
  西安交通大学热流科学与工程教育部重点实验室，710049，西安
  甘肃蓝科石化高新装备股份有限公司，730070，兰州
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202604018
  CLC： TK172
- Received：08 August 2025，
  
  Online First：22 December 2025，
  
  Published：10 April 2026
- 稿件说明：
移动端阅览
JIANG Dong, CHEN Man, ZHANG Fu, et al. Experimental Investigation on the Condensation and Boiling Heat Transfer Performance of Refrigerant R245fa Outside Horizontal Stainless Steel Enhanced Tubes[J]. Journal of Xi'an Jiaotong University, 2026, 60(4): 218-226.
DOI：

JIANG Dong, CHEN Man, ZHANG Fu, et al. Experimental Investigation on the Condensation and Boiling Heat Transfer Performance of Refrigerant R245fa Outside Horizontal Stainless Steel Enhanced Tubes[J]. Journal of Xi'an Jiaotong University, 2026, 60(4): 218-226. DOI： 10.7652/xjtuxb202604018.

摘要

针对制冷工质R245fa在高温热泵和有机朗肯循环系统中换热效率低的问题，对其开展了304不锈钢管外冷凝和沸腾换热性能的实验研究。以两根冷凝强化管（二维管C1和三维管C2）和两根沸腾强化管（沸腾管E1和沸腾T型管E2）为对象，研究了冷凝温度为50℃、蒸发温度为30℃条件下，不同管型结构对不锈钢管强化相变换热性能的影响。研究结果表明：对于冷凝换热较好的三维管C2和沸腾T型管E2，当流速为1.0～4.0 m/s、热流密度为20 kW/m

时，其总传热系数均在2500～3200 W/（m

·K）之间，管壁热阻占总传热热阻的比例为30%～40%；管外不锈钢管翅片的管型对冷凝和沸腾换热性能有较大影响，冷凝三维管C2和沸腾T型管E2的换热性能均表现较好，C2管的总传热系数和管外传热系数分别比C1管高了5%～7%、3%～8%，E2管的总传热系数和管外传热系数分别比E1管高了22%～32%、27%～38%。该研究可为高温热泵和有机朗肯循环系统中蒸发器和冷凝器的设计与优化提供重要参考，有助于提高系统的换热效率和整体性能。

Abstract

To address the issue of low heat transfer efficiency of refrigerant R245fa in high-temperature heat pump and organic Rankin

e cycle systems，an experimental study on its condensation and boiling heat transfer performance outside 304 stainless steel tubes was conducted.Two enhanced condensation tubes（two-dimensional tube C1 and three-dimensional tube C2）and two enhanced boiling tubes（boiling tube E1 and T-type boiling tube E2）were selected as test subj ects.The influence of different tube structures on the enhanced phase-change heat transfer performance of stainless steel tubes was investigated under a condensation temperature of 50 ℃ and an evaporation temperature of 30℃.The results indicate that for the tubes with better heat transfer performance（the three-dimensional condensation tube C2 and the T-type boiling tube E2），the overall heat transfer coefficients range from 2500 to 3200 W/（m

·K）at a flow velocity of 1.0—4.0 m/s and a heat flux density of 20 kW/m

.The thermal resistance of the tube wall accounts for 30%—40% of the total thermal resistance.The external fin structure of the stainless steel tubes significantly affects the condensation and boiling heat transfer performance. Both the three-dimensional condensation tube C2 and the T-type boiling tube E2 exhibit superior heat transfer performance. Compared to tube C1，the overall and external heat transfer coefficients of tube C2 are 5%—7% and 3%—8% higher，respectively.Similarly，compared to tube E1，the overall and external heat transfer coefficients of tube E2 are 22%—32% and 27%—38% higher，respectively.This study provides important references for the design and optimization of evaporators and condensers in high-temperature heat pump and organic Rankine cycle systems，contributing to the improvement of heat transfer efficiency and overall system performance.

关键词

Keywords

references

HUANG Lihao，TANG Cheng，JIANG Jingde，et al. Experimental research on refrigerant condensation heat transfer and pressure drop characteristics in the horizontal microfin tubes [J].International Communications in Heat and Mass Transfer，2022，135：106130.

刘炳伸，龚宇烈，陆振能，等.用于高温热泵蒸汽系统的几种工质的循环性能[J].可再生能源，2015，33（12）：1755-1761.

LIU Bingshen，GONG Yulie，LU Zhenneng，et al. Several working fluids for high temperature heat pump steam system [J]. Renewable Energy Resources，2015，33（12）：1755-1761.

CAVALLINI A，BORTOLIN S，DEL COL D，et al. Condensation heat transfer and pressure losses of high-and low-pressure refrigerants flowing in a single circular minichannel [J].Heat Transfer Engineering，2011，32（2）：90-98.

JI Wentao，LU Xiaodong，CHENG Dayong，et al. Effect of wettability on nucleate pool boiling heat transfer of a low surface tension fluid outside horizontal finned tubes [J].International Communications in Heat and Mass Transfer，2021，125：105340.

KONG R，DEETHAYAT T，ASANAKHAM A，et al.Thermodynamic performance analysis of a R245fa organic Rankine cycle（ORC）with different kinds of heat sources at evaporator [J].Case Studies in Thermal Engineering，2019，13：100385.

ZHANG Jingzhi，ZHOU Naixiang，LI Wei，et al.An experimental study of R410A condensation heat transfer and pressure drops characteristics in microfin and smooth tubes with 5 mm OD [J].International Journal of Heat and Mass Transfer，2018，125：1284-1295.

BASHAR M K，NAKAMURA K，KARIYA K，et al.Condensation heat transfer of R1234yf in a small diameter smooth and microfin tube and development of correlation [J].International Journal of Refrigeration，2020，120：331-339.

郭雨，顾宗保，张传财，等.不锈钢三维强化管管内流动沸腾与冷凝传热实验[J].青岛科技大学学报（自然科学版），2020，41（5）：102-108.

GUO Yu，GU Zongbao，ZHANG Chuancai，et al.Experiments on flow boiling and condensation heat transfer in stainless steel three-dimensional enhanced tubes[J]. Journal of Qingdao University of Science and Technology（Natural Science Edition），2020，41（5）：102-108.

唐苇羽.水平强化管内制冷剂冷凝与沸腾热力特性实验与数值模拟研究[D].杭州：浙江大学，2021 .

WANG Xu，KUKULKA D J，LIU Xiangzeng，et al. Evaporation flow heat transfer characteristics of stainless steel and copper enhanced tubes [J].Energies，2023，16（5）：2331.

GUO Cong，WANG Jing，DU Xiaoze，et al.Experimental flow boiling characteristics of R134a/R245fa mixture inside smooth horizontal tube [J].Applied Thermal Engineering，2016，103：901-908.

LIN Yuansheng，LI Junye，CHEN Zengchao，et al. Two-phase flow heat transfer in micro-fin tubes [J]. Heat Transfer Engineering，2021，42（5）：369-386.

王翠华，苏方正，李光瑜，等.螺旋套管式换热器螺纹强化管程传热研究[J].辽宁化工，2022，51（6）：829-832.

WANG Cuihua，SU Fangzheng，LI Guangyu，et al. Study on heat transfer enhancement of screw thread in the tube side of spiral double-pipe heat exchanger[J]. Liaoning Chemical Industry，2022，51（6）：829-832.

唐华，李成恩，武滔.强化内螺纹铜管传热的试验研究及分析[J].家电科技，2019（1）：114-117.

TANG Hua，LI Chengen，WU Tao.Experimental study on analysis on heat transfer of copper pipe with internal thread reinforcement[J].Journal of Appliance Science & Technology，2019（1）：114-117.

丁永洁，柳建华，张良，等.R404A在水平内螺纹管中的冷凝换热研究[J].热能动力工程，2020，35（12）：141-147.

DING Yongjie，LIU Jianhua，ZHANG Liang，et al. Condensation heat transfer of R404 A in horizontal inner-threaded tubes [J].Journal of Engineering for Thermal Energy and Power，2020，35（12）：141-147.

LIU Shengchun，SONG Ming，DAI Baomin，et al. Experimental study on R245fa condensation heat transfer in horizontal smooth tube and enhanced tube [J].Energy Procedia，2017，142：4169-4175.

JI Wentao，XIONG Shiming，CHEN Li，et al.Effect of subsurface tunnel on the nucleate pool boiling heat transfer of R1234ze（E），R1233zd（E）and R134a [J].International Journal of Refrigeration，2021，122：122-133.

SHU Gequn，ZHAO Mingru，TIAN Hua，et al.Experimental comparison of R123 and R245fa as working fluids for waste heat recovery from heavy-duty diesel engine [J].Energy，2016，115（Part 1）：756-769.

XIE Jian，XU Jinliang，CHENG Yu，et al.Condensation heat transfer of R245fa in tubes with and without lyophilic porous-membrane-tube insert [J].International Journal of Heat and Mass Transfer，2015，88：261-275.

WEBB R L，RUDY T M，KEDZIERSKI M A.Prediction of the condensation coefficient on horizontal integral-fin tubes [J].Journal of Heat Transfer，1985，107（2）：369-376.

SUKHATME S P，JAGADISH B S，PRABHAKA-RAN P.Film condensation of R-11 vapor on single horizontal enhanced condenser tubes [J].Journal of Heat Transfer，1990，112（1）：229-234.

GNIELINSKI V.New equations for heat and mass transfer in turbulent pipe and channel flow [EB/OL]. [2025-05-23].https://www.researchgate.net/publication/312656367_New_equation_for_heat_and_mass_transfer_in_turbulent_pipe_and_channel_flow.

陶文铨.传热学[M].5版.北京：高等教育出版社，2019.

CHENG B，TAO W Q.Experimental study of R-152a film condensation on single horizontal smooth tube and enhanced tubes [J].Journal of Heat Transfer，1994，116（1）：266-270.

MOFFAT R J.Describing the uncertainties in experimental results [J].Experimental Thermal and Fluid Science，1988，1（1）：3-17.

COOPER M G.Saturation nucleate pool boiling：a simple correlation [M]. Oxford，UK：Pergamon，1984.

JUNG D，KIM C B，HWANG S M，et al.Condensation heat transfer coefficients ofR22，R407C，and R410A on a horizontal plain，low fin，and turbo-C tubes [J].International Journal of Refrigeration，2003，26（4）：485-491.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Dynamic Characteristic Analysis of Printed Circuit Heat Exchangers in Supercritical Carbon Dioxide Brayton Cycle Systems

Simulation of Effect of Air Velocity Distribution on Performance of Two-Row Finned Tube Evaporator with One Flow Path

Review of the Application of EBSILON Software in Combined Heat and Power System Optimization

Turbulent Kinetic Energy Dissipation Mechanism of Supercritical Carbon Dioxide Leakage Flow in a Scallop Bionic Seal Cavity

Influence of Structural Parameters on the Summer Operational Characteristics of a Three-Tower-in-One Indirect Air-Cooling System

Related Author

TAO Wenquan

JI Wentao

CHENG Yulin

JIANG Dong

CHEN Man

ZHANG Fu

ZHANG Nannan

LI Zhanying

Related Institution

School of Energy and Power Engineering, Xi’an Jiaotong University

Key Laboratory of;Thermo-Fluid Science and Engineering of MOE, Xi’an Jiaotong University

Gansu Lanke Petrochemical High-Tech Equipment Co., Ltd.

(School of Energy and Power Engineering, Xi'an Jiaotong University,,)

School of Energy and Power Engineering, Xi'an Jiaotong University

⁰