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Crystallization Analysis and Control of Ammonia-Based Air Source Absorption Heat Pump in Cold Regions
Joint Authors
Wang, Baolong
Shi, Wenxing
Wu, Wei
Li, Xianting
Source
Advances in Mechanical Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-09-09
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Energy consumption of heating and domestic hot water is very high and will keep increasing.
Air source absorption heat pump (ASAHP) was proposed to overcome the problems of low energy efficiency and high air pollution existing in boiler systems, as well as the problem of bad performance under low ambient temperatures for electrical heat pumps.
In order to investigate the crystallization possibility of ammonia-salt ASAHP, crystallization margin (evaluated by solution mass concentration) at generating temperature ranging from 100 to 150°C, evaporating temperature from −30 to 10°C, and condensing temperature from 30 to 65°C are analyzed.
To prevent the NH3–NaSCN solution from crystallizing, ASAHP integrated with pressure booster located between the evaporator and absorber is simulated.
Analysis and comparisons show that NH3–NaSCN is easy to crystallize at relatively high generating temperature, low evaporating temperature, and low condensing temperature.
But crystallization margin of NH3–LiNO3 can always stay above 5% for most conditions, keeping away from crystallization.
Pressure booster can effectively avoid the crystallization problem that will take place in the NH3–NaSCN ASAHP system.
American Psychological Association (APA)
Wu, Wei& Wang, Baolong& Shi, Wenxing& Li, Xianting. 2013. Crystallization Analysis and Control of Ammonia-Based Air Source Absorption Heat Pump in Cold Regions. Advances in Mechanical Engineering،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-448932
Modern Language Association (MLA)
Wu, Wei…[et al.]. Crystallization Analysis and Control of Ammonia-Based Air Source Absorption Heat Pump in Cold Regions. Advances in Mechanical Engineering No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-448932
American Medical Association (AMA)
Wu, Wei& Wang, Baolong& Shi, Wenxing& Li, Xianting. Crystallization Analysis and Control of Ammonia-Based Air Source Absorption Heat Pump in Cold Regions. Advances in Mechanical Engineering. 2013. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-448932
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-448932