globalchange  > 气候减缓与适应
DOI: 10.1080/23744731.2018.1555441
WOS记录号: WOS:000466291900001
论文题名:
Thermal storage subcooling for CO2 booster refrigeration systems
作者: Bush, John; Aute, Vikrant; Radermacher, Reinhard
通讯作者: Bush, John
刊名: SCIENCE AND TECHNOLOGY FOR THE BUILT ENVIRONMENT
ISSN: 2374-4731
EISSN: 2374-474X
出版年: 2019
卷: 25, 期:5, 页码:570-587
语种: 英语
WOS关键词: AIR-CONDITIONING SYSTEM ; PHASE-CHANGE MATERIALS ; ENERGY STORAGE ; COLD-STORAGE ; PERFORMANCE ; BATTERY
WOS学科分类: Thermodynamics ; Construction & Building Technology ; Engineering, Mechanical
WOS研究方向: Thermodynamics ; Construction & Building Technology ; Engineering
英文摘要:

Transcritical CO2 supermarket refrigeration equipment is becoming more common as a near-zero global warming potential solution. Much attention is being given to improvements in efficiency for these systems, especially in transcritical operation to counteract reduced efficiency during hot outdoor temperatures. One approach to improving cycle efficiency is through the use of dedicated mechanical subcooling. This article examines further enhancement to the subcooler for the booster cycle by adding the use of thermal storage. By integrating a thermal energy storage system into the subcooling loop, the efficiency enhancements of dedicated subcooling may be maintained, while shifting power consumption to off-peak hours, significantly improving efficiency, and reducing power during hours with hot outdoor temperatures. Transient modeling was used to simulate a supermarket system with a thermal storage subcooler with different phase change material (PCM) and heat exchanger configurations. The results show a reduction of power corresponding to the power of the subcooler, with the possibility of further power reduction if the thermal storage system delivers lower leaving refrigerant temperatures. The power reduction is in the range of 8% to 16% for the duration of the storage discharge.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/128184
Appears in Collections:气候减缓与适应

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作者单位: Univ Maryland, Dept Mech Engn, 4298 Campus Dr, College Pk, MD 20742 USA

Recommended Citation:
Bush, John,Aute, Vikrant,Radermacher, Reinhard. Thermal storage subcooling for CO2 booster refrigeration systems[J]. SCIENCE AND TECHNOLOGY FOR THE BUILT ENVIRONMENT,2019-01-01,25(5):570-587
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