Performance evaluation of low GWP large glide temperature zeotropic mixtures applied in air source heat pump for DHW production

Jian Liu; Lu Zhou; Zhang LinXiaosong Zhang

首页> 外文期刊>Energy conversion & management >Performance evaluation of low GWP large glide temperature zeotropic mixtures applied in air source heat pump for DHW production

【24h】

Performance evaluation of low GWP large glide temperature zeotropic mixtures applied in air source heat pump for DHW production

机译：Performance evaluation of low GWP large glide temperature zeotropic mixtures applied in air source heat pump for DHW production

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

This study proposes the low GWP zeotropic mixtures applied in the air source heat pump for the domestic hot water production using the city water of 15 ℃. The large glide temperature in zeotropic mixture side was applied to match temperature lift in hot water side in the condenser. Fifteen zeotropic mixtures, composed of the low boiling compositions (R744, R41, and R170) and high boiling point compositions (RE170, R600a, R1234yf, R1234ze(E), and R290), were compared. A new indicator named temperature match degree (TMD) was applied to evaluate the heat exchanging process. Besides, the system performances, including energy efficiency ratio (EER), exergy efficiency (η_(ex)), volumetric heating capacity (q_v, kJ/m~3), are evaluated under different conditions. The results showed that the heat pumps using the zeotropic mixtures show better performance than that of the corresponding pure composition, except for q_v. The maximum EER, η_(ex), and q_v reaches 4.17, 0.472 and 3702 kJ/m~3 with the mole fraction of R744/RE170 of 0.3/0.7.TMD was also improved by the zeotropic mixtures, and the maximum TMD reaches 76 % with the mole fraction of RE170/R600a of 0.6/0.4, which is triple for R600a. The results prove the potential of the heat pumps using the large glide temperature zeotropic mixtures applied in domestic hot water production.

著录项

来源
《Energy conversion & management》 |2022年第12期|116457.1-116457.15|共15页
作者
Jian Liu; Lu Zhou; Zhang LinXiaosong Zhang;
展开▼
作者单位

Department of Energy and Environment, Southeast University, China;

Division of Building Science and Technology, City University of Hong Kong, Hong Kong, China;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类
关键词

Performance evaluation of low GWP large glide temperature zeotropic mixtures applied in air source heat pump for DHW production

摘要

著录项

相关主题

期刊订阅