Analysis of [hmim][PF6] and [hmim][Tf2N] ionic liquids as absorbents for an absorption refrigeration system

被引：67
|
作者：
Kim, Sarah [1 ]
Kohl, Paul A. [1 ]
机构：
[1] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA
来源：
INTERNATIONAL JOURNAL OF REFRIGERATION | 2014年 / 48卷
关键词：
Absorption refrigeration; Efficiency; Waste heat; Ionic liquid; PERFORMANCE SIMULATION; THERMODYNAMIC ANALYSIS; CARBON-DIOXIDE; WORKING FLUIDS; SOLUBILITY; CYCLES; CO2;
D O I：
10.1016/j.ijrefrig.2014.09.003
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The performance of ionic liquids, [hmim][PF6] and [hmim][Tf2N], as absorbents in an absorption refrigeration system with 1,1,1,2-tetrafluroethane (R134a) as the refrigerant was modeled. The Redlich-Kwong equation-of-state and two-phase pressure drop model were used to compute the thermodynamic conditions and performance of the working fluid pairs. The effects of the desorber and absorber temperatures, solution heat exchanger, and accessibility of waste heat on the system performance were evaluated. [hmim][Tf2N] showed higher system efficiency compared to [hmim][PF6] except for cases where the solubility difference between the absorber and desorber converged to zero. (C) 2014 Elsevier Ltd and IIR. All rights reserved.
引用
收藏
页码：105 / 113
页数：9
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