Application and analysis of two-stage heat recovery and flash vaporization process in high-temperature heat pump systems for steam production

IF 3.5 2区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Refrigeration-revue Internationale Du Froid Pub Date : 2025-07-03 DOI:10.1016/j.ijrefrig.2025.07.001

Zheng Huang , Yanting Zhang , Lin Wang , Yunlong Zheng , Guanxiang Qiao

引用次数: 0

Abstract

In conventional high-temperature heat pump systems for steam production, large temperature and pressure differences between the heat source and heat production cause significant energy losses in compression and expansion process. This research integrates two-stage heat recovery and flash vaporization processes into the two-stage compression heat pump system to enhance its thermodynamic performance. The thermodynamic model of the system was optimized using a simulated annealing algorithm, and experimental validation was conducted. Results indicate that when the evaporation temperature is 50 °C and the condensation temperature ranges from 110 °C to 135 °C, the proposed system’s COP is 3.6–5.2, and its thermodynamic perfection degree is 0.75–0.81, 32.5–62.4 % higher than the conventional cascade system.

查看原文本刊更多论文

两级热回收与闪蒸工艺在高温热泵制汽系统中的应用与分析

在传统的用于蒸汽生产的高温热泵系统中，热源和产热之间的温度和压力差很大，导致压缩和膨胀过程中的能量损失很大。本研究将两级热回收和闪蒸过程整合到两级压缩热泵系统中，以提高其热力学性能。采用模拟退火算法对系统热力学模型进行了优化，并进行了实验验证。结果表明，当蒸发温度为50℃，冷凝温度为110℃~ 135℃时，该系统的COP值为3.6 ~ 5.2，热力完美度为0.75 ~ 0.81，比常规叶栅系统提高32.5 ~ 62.4%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

International Journal of Refrigeration-revue Internationale Du Froid 工程技术-工程：机械

CiteScore

7.30

自引率

12.80%

发文量

363

审稿时长

3.7 months

期刊介绍： The International Journal of Refrigeration is published for the International Institute of Refrigeration (IIR) by Elsevier. It is essential reading for all those wishing to keep abreast of research and industrial news in refrigeration, air conditioning and associated fields. This is particularly important in these times of rapid introduction of alternative refrigerants and the emergence of new technology. The journal has published special issues on alternative refrigerants and novel topics in the field of boiling, condensation, heat pumps, food refrigeration, carbon dioxide, ammonia, hydrocarbons, magnetic refrigeration at room temperature, sorptive cooling, phase change materials and slurries, ejector technology, compressors, and solar cooling. As well as original research papers the International Journal of Refrigeration also includes review articles, papers presented at IIR conferences, short reports and letters describing preliminary results and experimental details, and letters to the Editor on recent areas of discussion and controversy. Other features include forthcoming events, conference reports and book reviews. Papers are published in either English or French with the IIR news section in both languages.