Experimental Investigation on Solubility Characteristics of CO2–Ionic Liquids as New Working Pairs for Absorption Refrigeration Systems

2021 ◽  
Vol 30 (2) ◽  
pp. 330-339
Author(s):  
L. Peng ◽  
W. Wu ◽  
Y. Hou ◽  
K. Li ◽  
H. Zhang
Keyword(s):  
Experimental Investigation ◽  
Ionic Liquids ◽  
Absorption Refrigeration

scholarly journals Absorption refrigeration cycles based on ionic liquids: Refrigerant/absorbent selection by thermodynamic and process analysis

2018 ◽  
Vol 213 ◽  
pp. 179-194 ◽  
Author(s):  
Daniel Moreno ◽  
Víctor R. Ferro ◽  
Juan de Riva ◽  
Rubén Santiago ◽  
Cristian Moya ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Process Analysis ◽  
Absorption Refrigeration

Experimental Investigation on Surface Tension of Water-Based Graphene Oxide Nanofluids

2014 ◽  
Vol 1082 ◽  
pp. 297-301 ◽  
Author(s):  
Zhao Zhi Zheng
Keyword(s):  
Surface Tension ◽  
Experimental Investigation ◽  
Graphene Oxide ◽  
Mass Fraction ◽  
Deionized Water ◽  
Nanoparticle Size ◽  
Refrigeration Cycle ◽  
Absorption Refrigeration ◽  
Water Based ◽  
Increasing Temperature

The water-based graphene oxide nanofluids were prepared. The surface tension of nanofluids with different mass fraction, temperature and different nanoparticle size was researched. The surface tension value was measured through ringmethod. The experimental results show that the surface tension of nanofluids is increased with increasing the mass faction of nanoparticles. But the surface tension of nanofluids with maximum concentration (0.1 wt %) is only increased up to 2.9% compared with deionized water. The surface tension of nanofluids decreases with increasing temperature and decreasing nanoparticle size. The results of this paper may provide reference for the research of absorption liquid for absorption refrigeration cycle.

The Use of Ionic Liquids in Refrigeration

2006 ◽  
Author(s):  
Mihir Sen ◽  
Samuel Paolucci
Keyword(s):  
Ionic Liquids ◽  
Room Temperature ◽  
High Heat ◽  
The Other ◽  
Refrigeration Cycle ◽  
Absorption Refrigeration ◽  
Transfer Coefficients ◽  
High Solubility ◽  
High Heat Capacity ◽  
Thermal And Chemical Stability

Ionic liquids are salts, usually with organic cations and inorganic anions, that are liquid at room temperature. There are a wide variety of ionic liquids that can be synthesized with different properties for different applications. They are generally non-volatile, non-toxic, and non-flammable with high heat capacity, high density, high thermal and chemical stability. We propose its use as an absorbent in an absorption refrigeration cycle. The refrigerant in this case would be a gas such as carbon dioxide. The present work deals with the desirable properties of ionic liquids for this application. For example, the absorbent must have a high solubility, and the heat and mass transfer coefficients of the absorbent-refrigerant solution must be large. The viscosity of the mixture, on the other hand, should not be so large as to make its pumping difficult.

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