广东工业大学学报 ›› 2019, Vol. 36 ›› Issue (05): 48-55,70.doi: 10.12052/gdutxb.180144

• 综合研究 • 上一篇    下一篇

分液板式冷凝器的热力性能评价

朱康达1, 陈颖1, 陈健勇1, 罗向龙1, 姚远1,2, 梁志颖1   

  1. 1. 广东工业大学 材料与能源学院, 广东 广州 510006;
    2. 中国科学院 广州能源研究所, 广东 广州 510640
  • 收稿日期:2019-01-01 出版日期:2019-08-21 发布日期:2019-08-06
  • 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、强化传热.E-mail:jianyong@gdut.edu.cn E-mail:jianyong@gdut.edu.cn
  • 作者简介:朱康达(1993-),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:
    广州市科技计划项目（201704030108）

Thermodynamic Performance Evaluation of Liquid-vapor Separation Plate Condenser

Zhu Kang-da1, Chen Ying1, Chen Jian-yong1, Luo Xiang-long1, Yao yuan1,2, Liang Zhi-ying1   

  1. 1. School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China;
    2. Guangzhou Institute of Energy Conversion, Chinese Academy of Science, Guangzhou 510640, China
  • Received:2019-01-01 Online:2019-08-21 Published:2019-08-06

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摘要： 将分液冷凝强化传热思想应用于板式冷凝器中，建立了相应的物理和数学模型.计算了相同换热面积的7种结构分液板式冷凝器的平均传热系数和总压降，同时采用惩罚因子（Penalty Factor，PF）和?损这两个指标对其性能进行评价.计算结果表明：分液效率越高，分液板式冷凝器的综合性能越好.在分液效率为100%，质量流量为0.08~0.12 kg/s范围内，与相同面积的非分液板式冷凝器相比，分液板式冷凝器的PF值降低14.6%，?损减少2.6%~6.1%；当质量流量为0.1 kg/s，平均干度为0.3~0.75，分液板式冷凝器的PF值均小于非分液板式冷凝器，而平均干度大于0.45时，分液板式冷凝器?损小于非分液板式冷凝器.

关键词: 分液板式冷凝器, 传热系数, 压降, 惩罚因子, ?损

Abstract: "Liquid-separation condensation" theory is applied for performance enhancement in the plate condenser, with the physical and mathematical models built. Seven liquid-separation plate condensers having the same heat transfer area are proposed for heat transfer coefficient and pressure drop comparison. Their performances are evaluated by employing the penalty factor (PF) and exergy destruction. Results show that the higher the liquid-vapor separation efficiency, the better is the performance of the liquid-separation plate condensers. Compared with the conventional plate condenser with the same heat transfer area, the liquid-separation plate condenser has 14.6% lower PF and 2.6~6.1% smaller exergy destruction when the liquid-vapor separation efficiency is 100% and the mass flux is in the range of 0.08~0.12 kg/s. Moreover, when the mass flux is 0.1 kg/s, the penalty factor (PF) of liquid-separation plate condenser is lower with the vapor quality ranging between 0.3~0.75, and the exergy destruction of liquid-separation plate condenser is superior only when the vapor quality is higher than 0.45.

Key words: liquid-vapor separation plate condenser, heat transfer coefficient, pressure drop, penalty factor, exergy destruction

中图分类号: 

  • TB657.5
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