Back to Search
Start Over
Thermodynamic performance assessment of ammonia/ionic liquid based half-effect absorption refrigeration cycle
- Source :
- Case Studies in Thermal Engineering, Vol 25, Iss, Pp 100924-(2021)
- Publication Year :
- 2021
- Publisher :
- Elsevier, 2021.
-
Abstract
- The potential of ammonia/ionic liquids half-effect absorption refrigeration cycle (ARC) has been investigated. The thermodynamic model of the half-effect ARC and the property models of ammonia/ionic liquid working pairs have been established with verified accuracy. In addition, the thermodynamic and economic performance comparisons between the four ammonia/ionic liquid working pairs and ammonia/water in the half-effect ARC cycle are conducted. With coefficient of performance (COP) and solution circulation ratio as key performance indicators in this paper, the results reveal that, in general, the COP of the four ammonia/ionic liquid working pairs is higher than that of the ammonia/water, and there exists an optimum generation temperature for the cycle to achieve the highest COP. With the cooling capacity per unit UA, the cycle's economic performance is studied. Under the typical operating conditions, the COP of working pairs with [emim][BF4] has the highest value (0.342), followed by [dema][Ac] (0.330), [dmim][DMP] (0.300) and [emim][SCN] with the lowest value (0.293). And the cooling capacity per unit UA of ammonia/[emim][BF4] has the highest value. Moreover, compared to the other candidates, ammonia/[emim][BF4] performs best under most operating conditions and can be recommended as a reasonable working pair for the half-effect ARC.
- Subjects :
- Materials science
020209 energy
Analytical chemistry
02 engineering and technology
Ionic liquid
Cooling capacity
01 natural sciences
law.invention
Ammonia
chemistry.chemical_compound
law
0202 electrical engineering, electronic engineering, information engineering
Thermodynamic performance
Engineering (miscellaneous)
Fluid Flow and Transfer Processes
Coefficient of performance
Engineering (General). Civil engineering (General)
Half-effect absorption refrigeration cycle
010406 physical chemistry
0104 chemical sciences
Thermodynamic model
chemistry
Absorption refrigerator
TA1-2040
Low-grade thermal source
Subjects
Details
- Language :
- English
- Volume :
- 25
- Database :
- OpenAIRE
- Journal :
- Case Studies in Thermal Engineering
- Accession number :
- edsair.doi.dedup.....5f9b2d6df6fa8c69b0831aa3cb94d604