Dynamic Modeling of an Absorption Refrigeration System Using Ionic Liquids

2007 ◽  
Author(s):  
Weihua Cai ◽  
Mihir Sen ◽  
Samuel Paolucci
Keyword(s):  
Ionic Liquids ◽  
High Heat ◽  
Cycle Performance ◽  
Refrigeration Cycle ◽  
Absorption Refrigeration ◽  
Refrigeration System ◽  
High Heat Capacity ◽  
Single Effect ◽  
Absorption Refrigeration System ◽  
Thermal And Chemical Stability

Ionic liquids are generally non-volatile, non-toxic, and nonflammable with high heat capacity, high density, and high thermal and chemical stability. This paper considers their use as absorbents in an absorption refrigeration cycle. A dynamic model of a single-effect absorption refrigeration cycle using ionic liquids as absorbent is developed. Modeling of the cycle performance requires thermodynamic properties which are obtained from an equation of state for the refrigerant-absorbent mixture (solution). The transient response of the cycle is investigated. Some design and operating parameters that affect the cycle performance are identified.

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.

Thermodynamic performance analysis of a single-effect absorption refrigeration system operating with water and 1-ethyl-3-methylimidazolium-based ionic liquids mixtures

2021 ◽  
pp. 117761
Author(s):  
Hugo Valença de Araújo ◽  
Luiz Henrique Parolin Massuchetto ◽  
Raiza Barcelos Corrêa do Nascimento ◽  
Stella Maia Rocha de Carvalho ◽  
José Vicente Hallak Dangelo
Keyword(s):  
Ionic Liquids ◽  
Performance Analysis ◽  
Absorption Refrigeration ◽  
Refrigeration System ◽  
Thermodynamic Performance ◽  
Single Effect ◽  
Absorption Refrigeration System ◽  
System Operating

scholarly journals Exergetic Analysis of a LiBr-H2O Single Effect Absorption Refrigeration System

2018 ◽  
Vol 11 (No. 07) ◽  
pp. 363-368
Author(s):  
Guillermo Valencia Ochoa ◽  
Jorge Duarte Forero ◽  
Luis Obregon Quinones
Keyword(s):  
Absorption Refrigeration ◽  
Refrigeration System ◽  
Single Effect ◽  
Exergetic Analysis ◽  
Absorption Refrigeration System
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