Characteristics of non-uniform reaction blocks for chemical heat pump

Chan Ho Lee; Seong Ho Park; Seung Hoon Choi; Young Seok Kim; Sung Hyun Kim

doi:10.1016/j.ces.2004.11.001

Characteristics of non-uniform reaction blocks for chemical heat pump

Chan Ho Lee, Seong Ho Park, Seung Hoon Choi, Young Seok Kim, Sung Hyun Kim

* Honorary professors

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

The non-uniform reaction blocks were manufactured by the impregnation of metal salts into the expanded graphite to improve the heat and mass transfer ability for the chemical heat pump. In contrast with the ordinary reaction blocks of the uniform properties such as the apparent density and ratio of the expanded graphite, the non-uniform reaction blocks were prepared to increase the apparent density with radius direction: 165, 222, 279, 337, 394kg/m³ gradually. The experimental results show that the non-uniform reaction block can improve the heat transfer properties and additionally overcome the mass transfer limitation due to high apparent density of the block which diminishes the permeability of ammonia gas.

Original language	English
Pages (from-to)	1401-1409
Number of pages	9
Journal	Chemical Engineering Science
Volume	60
Issue number	5
DOIs	https://doi.org/10.1016/j.ces.2004.11.001
Publication status	Published - 2005 Mar

Bibliographical note

Funding Information:
This study was supported by research grants from the Korea Science and Engineering Foundation (KOSEF) though Applied Rheology Center (ARC) at Korea University, Seoul, Korea.

Keywords

Adsorption
Ammonia
Heat transfer
Mass transfer
Non-uniform reaction-block
Transport processes

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Industrial and Manufacturing Engineering

Access to Document

10.1016/j.ces.2004.11.001

Cite this

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title = "Characteristics of non-uniform reaction blocks for chemical heat pump",

abstract = "The non-uniform reaction blocks were manufactured by the impregnation of metal salts into the expanded graphite to improve the heat and mass transfer ability for the chemical heat pump. In contrast with the ordinary reaction blocks of the uniform properties such as the apparent density and ratio of the expanded graphite, the non-uniform reaction blocks were prepared to increase the apparent density with radius direction: 165, 222, 279, 337, 394kg/m3 gradually. The experimental results show that the non-uniform reaction block can improve the heat transfer properties and additionally overcome the mass transfer limitation due to high apparent density of the block which diminishes the permeability of ammonia gas.",

keywords = "Adsorption, Ammonia, Heat transfer, Mass transfer, Non-uniform reaction-block, Transport processes",

author = "Lee, {Chan Ho} and Park, {Seong Ho} and Choi, {Seung Hoon} and Kim, {Young Seok} and Kim, {Sung Hyun}",

note = "Funding Information: This study was supported by research grants from the Korea Science and Engineering Foundation (KOSEF) though Applied Rheology Center (ARC) at Korea University, Seoul, Korea. ",

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doi = "10.1016/j.ces.2004.11.001",

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T1 - Characteristics of non-uniform reaction blocks for chemical heat pump

AU - Lee, Chan Ho

AU - Park, Seong Ho

AU - Choi, Seung Hoon

AU - Kim, Young Seok

AU - Kim, Sung Hyun

N1 - Funding Information: This study was supported by research grants from the Korea Science and Engineering Foundation (KOSEF) though Applied Rheology Center (ARC) at Korea University, Seoul, Korea.

PY - 2005/3

Y1 - 2005/3

N2 - The non-uniform reaction blocks were manufactured by the impregnation of metal salts into the expanded graphite to improve the heat and mass transfer ability for the chemical heat pump. In contrast with the ordinary reaction blocks of the uniform properties such as the apparent density and ratio of the expanded graphite, the non-uniform reaction blocks were prepared to increase the apparent density with radius direction: 165, 222, 279, 337, 394kg/m3 gradually. The experimental results show that the non-uniform reaction block can improve the heat transfer properties and additionally overcome the mass transfer limitation due to high apparent density of the block which diminishes the permeability of ammonia gas.

AB - The non-uniform reaction blocks were manufactured by the impregnation of metal salts into the expanded graphite to improve the heat and mass transfer ability for the chemical heat pump. In contrast with the ordinary reaction blocks of the uniform properties such as the apparent density and ratio of the expanded graphite, the non-uniform reaction blocks were prepared to increase the apparent density with radius direction: 165, 222, 279, 337, 394kg/m3 gradually. The experimental results show that the non-uniform reaction block can improve the heat transfer properties and additionally overcome the mass transfer limitation due to high apparent density of the block which diminishes the permeability of ammonia gas.

KW - Adsorption

KW - Ammonia

KW - Heat transfer

KW - Mass transfer

KW - Non-uniform reaction-block

KW - Transport processes

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DO - 10.1016/j.ces.2004.11.001

M3 - Article

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JO - Chemical Engineering Science

JF - Chemical Engineering Science

IS - 5

ER -

Characteristics of non-uniform reaction blocks for chemical heat pump

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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