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文章编号:1672-6987(2026)05-0106-09;DOI:10. 16351/j. 1672-6987. 2026. 05. 013
冯 威 1 ,张江辉 1 ,任 侠 1* ,刘相增 1 ,马连湘 1* ,李 蔚 1,2 ,何 燕 1 (1. 青岛科技大学 机电工程学院,山东 青岛 266061;2. 浙江大学 能源工程学院,浙江 杭州 310027)
摘 要:实验研究了制冷剂 R32 及 R410A 在 12. 7 mm 不锈钢光滑管(ST)、人字齿管(E1)以 及疏水表面人字齿管(E2)的冷凝流动换热特性,并结合流型发展分析不同换热管的换热机 理。实验制冷剂质量流速控制在 25~200 kg ·(m2 ·s)-1 ,饱和温度为 35 或 45 ℃,干度在 0. 1~0. 9 之间。依据冷凝实验结果讨论了质量流速、饱和温度、制冷剂、干度对冷凝换热性能 的影响。同时考虑冷凝 HTC(换热系数)与摩擦压降的影响,冷凝实验结果表明,E1 管具有较 好的强化换热效果,其 PEF(性能因子)值达到 1. 07~1. 41,而 E2 管虽然在 E1 管的基础上复合 疏水强化结构,但冷凝强化效果并不好,其 PEF 值达到 0. 94~1. 12。
关键词:冷凝;制冷剂;强化管;流型
中图分类号:TK 124 文献标志码:A
引用格式:冯威,张江辉,任侠,等 . 水平不锈钢光管及强化管管内冷凝换热特性[J]. 青岛 科技大学学报(自然科学版),2026,47(5):106-114.
FENG Wei, ZHANG Jianghui, REN Xia, et al. Experimental study on condensation heat transfer characteristics in horizontal stainless steel smooth and enhanced tubes[J]. Journal of Qingdao University of Science and Technology(Natural Science Edition),2026,47(5): 106-114.
Experimental Study on Condensation Heat Transfer Characteristics in Horizontal Stainless Steel Smooth and Enhanced Tubes
FENG Wei1 ,ZHANG Jianghui1 ,REN Xia1 ,LIU Xiangzeng1 ,MA Lianxiang1 ,LI Wei1,2 ,HE Yan1 (1. College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China; 2. College of Energy Engineering, Zhejiang University, Hangzhou 310027, China)
Abstract:The condensation flow heat transfer characteristics of refrigerants R32 and R410A in 12. 7 mm stainless steel smooth tube (ST), herringbone tooth tube (E1) and herringbone tooth tube with hydrophobic surface(E2) were experimentally studied, and the heat transfer mechanism of different heat transfer tubes was analyzed combined with the development of flow patterns. The experimental refrigerant mass flux is controlled at 25—200 kg ·(m2 · s)-1 , saturation temperature is 35 and 45 ℃ , and the vapor quality is between 0. 1 and 0. 9. The effects of mass flux, saturation temperature, refrigerant and vapor quality on the performance of condensing heat transfer are discussed based on the results of condensation experiments. At the same time, considering the influence of condensing HTC(heat transfer coefficient) and friction pressure drop, the condensation experiment results show that E1 tube has a good heat transfer enhancement effect, and its PEF(performance factor) value reaches 1. 07—1. 41, while E2 tube has a composite hydrophobic strengthening structure based on E1 tube, but its condensation strengthening effect is not good, and its PEF value reaches 0. 94—1. 12.
Key words:condensation; refrigerant; enhanced tube; flow pattern
收稿日期:2025-11-04
基金项目:国家自然科学基金项目(52076187).
作者简介:冯 威(1998—),男,硕士研究生 . * 通信联系人