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

Research output: Contribution to journalArticle

14 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 languageEnglish
Pages (from-to)1401-1409
Number of pages9
JournalChemical Engineering Science
Volume60
Issue number5
DOIs
Publication statusPublished - 2005 Mar 1

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Keywords

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

ASJC Scopus subject areas

  • Chemical Engineering(all)

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