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Journal of Enhanced Heat Transfer
Fator do impacto: 0.562 FI de cinco anos: 0.605 SJR: 0.211 SNIP: 0.361 CiteScore™: 0.33

ISSN Imprimir: 1065-5131
ISSN On-line: 1026-5511

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Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v5.i2.40
pages 111-125

Heat and Mass Transfer Intensification in Solid Sorption Systems

Valery A. Babenko
A. V. Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus, Minsk, Belarus
L. E. Kanonchik
A. V. Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus, Minsk, Belarus
Leonid L. Vasiliev, Jr.
Byelorussian Academy of Sciences; and Luikov Heat & Mass Transfer Institute, Porous Media Laboratory, P. Brovka Str. 15, 220072 Minsk, Belarus

RESUMO

In this paper the heat and mass transfer in zeolite/water solid sorption machines (heat pumps, coolers and heat transformers) activated by heat exchangers with heat pipes is experimentally investigated, and numerical modelling is made for two finned adsorbers coupled with heat recovery realised by heat pipes. Solid sorption cooler setup is presented, which has two - adsorbers and heat pipe heat exchangers.
The proposed heat pipe heat exchangers show a good thermal response and could be used to heat and desorb the porous sorbent bed up to 300°C and to cool down again to the ambient temperature due to beneficial effects of thermal contact between finned heat pipe and sorbent system. The anomalous decreasing of effective thermal resistance was registered for the compound (MgA) zeolite/porcelain clay during the desorption stage. This decreasing could be explained by a "micro heat pipe" effect inside the sorbent bed in transient process of heating/desorption.


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