提高与环境源耦合的同时加热和冷却的CO2热泵的效率

IF 3.5 2区 工程技术 Q1 ENGINEERING, MECHANICAL
Zhaoyang Yuan , Jintao He , Yonghao Zhang , Yu Yao , Hua Tian , Lingfeng Shi , Gequn Shu
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引用次数: 0

摘要

用于同时加热和冷却的CO2热泵(CO2 HPS)是一种能够在单个系统内提供加热和冷却的高效技术。CO2 HPS以其高能效和低碳排放的特点,越来越受到业界和学术界的关注。然而,基本CO2 HPS不能有效平衡供热和制冷输出与实际负荷需求,导致不必要的能源浪费,降低系统整体效率。为了解决这一问题,本文提出了四种新的配置方式,引入环境源来调节供热和制冷供需平衡,同时通过集成热回收和基于喷射器的回路来改进系统结构。这些增强功能使机组能够根据实际负载要求灵活有效地调节加热和冷却输出。结果表明,与基本配置相比,4种新配置的综合性能系数分别提高了0 ~ 14.69%、2.77 ~ 19.81%、5.66 ~ 17.70%和0.61 ~ 8.40%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Improving the efficiency of a CO2 heat pump for simultaneous heating and cooling coupled with an ambient source

Improving the efficiency of a CO2 heat pump for simultaneous heating and cooling coupled with an ambient source
The CO2 heat pump for simultaneous heating and cooling (CO2 HPS) is an efficient technology capable of providing both heating and cooling within a single system. With its high energy efficiency and low carbon emissions, the CO2 HPS has attracted growing attention in both industry and academia. However, the basic CO2 HPS does not effectively balance the heating and cooling output with the actual load demands, leading to unnecessary energy waste and lower overall system efficiency. To address this issue, this paper proposes four new configurations that introduce ambient sources to regulate the heating and cooling supply-demand balance, while also improving the system structure through the integration of heat recovery and ejector-based loops. These enhancements enable the unit to flexibly and efficiently adjust heating and cooling output according to actual load requirements. The results show that, compared to the basic configuration, the overall coefficient of performance of the four new configurations increases by 0∼14.69 %, 2.77∼19.81 %, 5.66∼17.70 %, and 0.61∼8.40 %, respectively.
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来源期刊
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.
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