广东工业大学学报 ›› 2018, Vol. 35 ›› Issue (04): 105-110.doi: 10.12052/gdutxb.180008

• 综合研究 • 上一篇    下一篇

带分液结构蒸发器的性能研究

丁榕, 李云海, 陈健勇, 陈颖, 罗向龙, 杨智   

  1. 广东工业大学 材料与能源学院, 广东 广州 510006
  • 收稿日期:2018-01-12 出版日期:2018-07-09 发布日期:2018-06-06
  • 通信作者: 陈健勇(1983-),男,副教授,硕士生导师,主要研究方向为节能、制冷系统、强化换热.E-mail:jianyong@gdut.edu.cn E-mail:jianyong@gdut.edu.cn
  • 作者简介:丁榕(1987-),男,硕士研究生,主要研究方向为换热器强化与优化.
  • 基金资助:
    广东省科技计划项目（2016B020243010）；广州市科技计划项目（201704030108）；佛山市科技创新项目（2016AG101232）

A Performance Study of the Evaporator with a Vapor-liquid Separation

Ding Rong, Li Yun-hai, Chen Jian-yong, Chen Ying, Luo Xiang-long, Yang Zhi   

  1. School of Material and Energy, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2018-01-12 Online:2018-07-09 Published:2018-06-06
  • Supported by:
     

HTML

PDF (PC)

2777

摘要： 提出一种新型的蒸发器，在平行流的联箱中设计带分液小孔的隔板，利用其气液分离作用对蒸发区的制冷剂干度进行调控.建立了分液蒸发器的计算模型，并进行实验验证，结果表明传热系数和压降的偏差在±30%以内.分析了不同管程分布对分液蒸发器性能的影响，结果表明管程对性能的影响较大.

关键词: 分液蒸发器, 管程分布, 传热系数, 压降

Abstract: A novel evaporator with a vapor-liquid separation is proposed. It can control quality of refrigerants by vapor-liquid separation that is accomplished by the baffle with small holes in the heads. A steady model of the vapor-liquid separation evaporator is established. The calculated heat transfer coefficient and pressure drop are verified by experiments with errors within ±30%. The effect of tube arrangements on the thermodynamic performance of the evaporator is analyzed by this program. The results show that the effect is significant.

Key words: vapor-liquid separation evaporator, tube pass scheme, heat transfer coefficient, pressure drop

中图分类号: 

  • TB657.5
[1] ZHANG X Y, JI C F, YUAN X L. Prediction method for evaporation heat transfer of non-azeotropic refrigerant mixtures flowing inside internally grooved tubes[J]. Applied Thermal Engineering, 2008, 28(14):1974-1983.
[2] CHOI T Y, KIM Y J, KIM M S, et al. Evaporation heat transfer of R-32, R-134a, R-32/134a, and R-32/125/134a inside a horizontal smooth tube[J]. Heat Mass Transfer, 2000, 43(19):3651-3660.
[3] BOISSIEUX X, HEIKAL M R, JOHNS R A. Two-phase heat transfer coefficients of three HFC refrigerants inside a horizontal smooth tube, part I:evaporation[J]. International Journal of Refrigeration, 2000, 23(5):269-283.
[4] CARLI M D, FIORENZATO S, ZARRELLA A. Performance of heat pumps with direct expansion in vertical ground heat exchangers in heating mode[J]. Energy Conversion and Management, 2015, 95(1):120-130.
[5] PENG X F, WU D, ZHANG Y. Applications and principle of high performances condensers[J]. Chemical Industry and Engineering Progress, 2007, 26(1):97-104.
[6] CAVALLINIA A, CENSIA G, COLA D D, et al. Condensation inside and outside smooth and enhanced tubes:a review of recent research[J]. Refrig, 2003, 26(4):373-392.
[7] CHEN Y, HUA N, DENG L S. Performances of a split-type air conditioner employing a condenser with liquid-vapor separation baffles[J]. Refrig, 2012, 735(2):278-289.
[8] ZHONG T M, CHEN Y, HUA N, et al. In-tube performance evaluation of an air-cooled condenser with liquid-vapor separator[J]. Applied Energy, 2014, 136(1):4968-978.
[9] CHUNG K, LEE K S, KIM W S. Optimization of the design factors for thermal performance of a parallel-flow heat exchanger[J]. Heat and Mass Transfer, 2002, 45(24):4773-4780.
[10] LOCKHART R W, MARTINELLI R C. Proposed correlation of data for isothermal two-phase, two-component flow in pipes[J]. Chem Eng Prog, 1949, 45(1):39-48.
[11] Kandlikar S G. A general correlation for saturated two-phase flow boiling heat transfer inside horizontal and vertical tubes[J]. Journal of Heat Transfer, 1990, 112(1):219-228.
[12] HARDIK B K, KUMAR G, PRABHU S V. Boiling pressure drop, local heat transfer distribution and critical heat flux in horizontal straight tubes[J]. International Journal of Heat and Mass Transfer, 2017, 113(1):466-481.
[13] XU Y, FANG X. A new correlation of two-phase frictional pressure drop for evaporating flow in pipes[J]. Refrig, 2012, 35(7):2039-2050.
[14] HIGASHI Y. NIST thermodynamic and transport properties of refrigerants and refrigerant mixtures (REFPROP)[J]. Netsu Bussei, 2000, 14(4):1575
[15] ZHONG T M, CHEN Y, ZHENG W X, et al. Experimental investigation on microchannel condensers with and without liquid-vapor separation headers[J]. Applied Thermal Engineering, 2014, 73(2):1510-1518.
[1] 梁志颖, 陈健勇, 陈颖, 罗向龙, 杨智, 梁颖宗. 多流程分液板式冷凝器的变工况性能研究[J]. 广东工业大学学报, 2022, 39(01): 99-106.
[2] 朱康达, 陈颖, 陈健勇, 罗向龙, 姚远, 梁志颖. 分液板式冷凝器的热力性能评价[J]. 广东工业大学学报, 2019, 36(05): 48-55,70.
[3] 钟浩元, 张仁元, 史保新, 李石栋, 刘良德. 热二极管在储能式太阳热水器中的应用研究[J]. 广东工业大学学报, 2010, 27(1): 42-46.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
版权所有 © 2017 《广东工业大学学报》编辑部
地址：广州市东风东路729号广东工业大学 邮编：510090
电话：020-37626653,020-37626139,020-37626396
邮箱：xbzrb@gdut.edu.cn
本系统由北京玛格泰克科技发展有限公司设计开发