Chemical and adsorption heat pumps: Comments on the second law efficiency

被引：35

作者：

Sharonov, V. E. ^{[1
]}

Aristov, Yu. I. ^{[1
]}

机构：

[1] Boreskov Inst Catalysis, Novosibirsk, Russia

来源：

CHEMICAL ENGINEERING JOURNAL | 2008年 / 136卷 / 2-3期

基金：

俄罗斯基础研究基金会;

关键词：

solid sorption; chemical heat pump; adsorption; solid-gas reaction; COP; second law efficiency; cycle analysis; ammonia; water; methanol;

D O I：

10.1016/j.cej.2007.07.026

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The thermodynamic analysis of an ideal cycle of chemical and adsorption heat pumps was performed in order to compare two definitions of the cycle efficiency used in literature and estimate the maximal efficiency that can be reached for particular non-regenerative cycle. It was shown that the efficiency equal to the Carrot efficiency can be, in principle, obtained for a chemical heat pump that results from a monovariant equilibrium of a gas-solid reaction. This was confirmed for various chemical reactions between salts and ammonia (or water). For a divariant equilibrium in adsorption heat pump there is inevitable degradation of the efficiency due to the thermal entropy production caused by the external thermal coupling. Simple estimation of the efficiency reduction is suggested. (C) 2007 Elsevier B.V All rights reserved.

引用

页码：419 / 424

页数：6

共 12 条

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