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.
Bibliographical noteFunding 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.
- Heat transfer
- Mass transfer
- Non-uniform reaction-block
- Transport processes
ASJC Scopus subject areas
- Chemical Engineering(all)
- Industrial and Manufacturing Engineering