大学物理 ›› 2023, Vol. 42 ›› Issue (9): 40-.doi: 10.16854/j.cnki.1000-0712.220304

• 物理.自然.技术.社会 • 上一篇    下一篇

可逆简单空气制冷循环品质因子优化

伍博文,陈林根,殷勇,戈延林   

  1. 1. 武汉工程大学 热科学与动力工程研究所,湖北 武汉430205;2. 湖北省 绿色化工装备工程技术研究中心,湖北 武汉430205;
    3. 武汉工程大学 机电工程学院,湖北 武汉430205;4. 武汉工程大学 光电信息与能源工程学院,湖北 武汉430205
  • 收稿日期:2022-06-20 修回日期:2022-09-29 出版日期:2023-10-16 发布日期:2023-10-18
  • 通讯作者: 陈林根,Email: lingenchen@hotmail.com, 2506715339@qq.com
  • 作者简介:伍博文(2000—),男,湖北松滋人,武汉工程大学机电工程学院2022级硕士研究生.
  • 基金资助:
    国家自然科学基金(52171317, 51779262)资助

Figures of merit optimization for reversible simple air refrigeration cycle

WU Bo-wen1,2,3, CHEN Lin-gen1,2,3, YIN Yong1,4, GE Yan-lin1,2,3   

  1. 1. Institute of Thermal Science and Power Engineering,Wuhan Institute of Technology, Wuhan, Hubei 430205, China;
    2. Hubei Provincial Engineering Technology Research Center of Green Chemical Equipment, Wuhan, Hubei 430205, China;
    3. School of Mechanical & Electrical Engineering, Wuhan Institute of Technology, Wuhan, Hubei 430205, China;
    4. School of Optical Information and Energy Engineering, Wuhan Institute of Technology, Wuhan, Hubei 430205, China
  • Received:2022-06-20 Revised:2022-09-29 Online:2023-10-16 Published:2023-10-18

摘要: 本文利用经典热力学理论,以可逆简单空气制冷循环为研究对象,借用有限时间热力学提出的品质因子作为优化目标,通过理论分析和数值计算,推导出了品质因子与影响参数间的解析式.通过优化压比给出了制冷循环的最优性能,分析了循环温比对制冷循环最优性能的影响.结果表明,选用品质因子作为优化目标进行性能优化,存在最佳压比使得品质因子取得最大值,而且优化结果保证了制冷率和制冷系数之间的协调,是一种较优的折衷方案.

关键词: 经典热力学, 有限时间热力学, 可逆简单空气制冷循环, 品质因子, 性能优化

Abstract:  In this paper, a reversible simple air refrigeration cycle is studied by using classical thermodynamics, and the figures of merit proposed by finite time thermodynamics is used as the optimization objective. Through theoretical analysis and numerical calculations, the analytical formulas between figures of merit and influencing parameters are derived. By optimizing the pressure ratio, the optimal performance of the refrigeration cycle is given. The influence of cycle temperature ratio on the optimal performance of refrigeration cycle is analyzed. The results show that when the figures of merit is selected as optimization objective for performance optimization, there is an optimal pressure ratio to make the figures of merit get the maximum value. Moreover, the optimization results ensure the coordination between the cooling load and COP, which is a better compromise plan.


Key words: classical thermodynamics, finite time thermodynamics, reversible simple air refrigeration cycle, figures of merit, performance optimization