Thermodynamic analysis of a novel energy-efficient refrigeration system subcooled by liquid desiccant dehumidification and evaporation

A new energy-efficient refrigeration system subcooled by liquid desiccant dehumidification and evaporation was proposed in this paper. In the system, liquid desiccant system could produce very dry air for an indirect evaporative cooler, which would subcool the vapor compression refrigeration system...

Full description

Saved in:
Bibliographic Details
Published inEnergy conversion and management Vol. 78; pp. 286 - 296
Main Authors She, Xiaohui, Yin, Yonggao, Zhang, Xiaosong
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier 01.02.2014
Subjects
Applied sciences
Compressing
Condensing
Dehumidification
Desiccants
Energy
Energy. Thermal use of fuels
Evaporation
Exact sciences and technology
Liquids
Refrigerating engineering
Refrigerating engineering. Cryogenics. Food conservation
Refrigeration
Techniques. Materials
Thermodynamics
Condensation heat utilization
Evaporation
Condensation
Energy efficiency improvement
Energy savings
Liquid desiccant
Desiccant
Improvement
Subcooling
Energy conservation
Energetic efficiency
Thermodynamic analysis
Refrigeration
Online AccessGet full text

Cover

More Information
Summary:A new energy-efficient refrigeration system subcooled by liquid desiccant dehumidification and evaporation was proposed in this paper. In the system, liquid desiccant system could produce very dry air for an indirect evaporative cooler, which would subcool the vapor compression refrigeration system to get higher COP than conventional refrigeration system. The desiccant cooling system can use the condensation heat for the desiccant regeneration. Thermodynamic analysis is made to discuss the effects of operation parameters (condensing temperature, liquid desiccant concentration, ambient air temperature and relative humidity) on the system performance. Results show that the proposed hybrid vapor compression refrigeration system achieves significantly higher COP than conventional vapor compression refrigeration system, and even higher than the reverse Carnot cycle at the same operation conditions. The maximum COPs of the hybrid systems using hot air and ambient air are 18.8% and 16.3% higher than that of the conventional vapor compression refrigeration system under varied conditions, respectively.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0196-8904
1879-2227
DOI:10.1016/j.enconman.2013.10.057