Modeling of heat and mass transfer coupling with gas–solid reaction in a sorption heat pump cooled by a two-phase closed thermosyphon

2005 ◽  
Vol 60 (15) ◽  
pp. 4093-4104 ◽  
Author(s):  
S. Dutour ◽  
N. Mazet ◽  
J.L. Joly ◽  
V. Platel
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Heat Pump ◽  
Solid Reaction ◽  
Two Phase ◽  
Sorption Heat ◽  
Sorption Heat Pump ◽  
Gas Solid Reaction

Readsorption Processes in a Sorption Bed Heat Exchanger During Pressurization and Depressurization

1995 ◽  
Vol 117 (4) ◽  
pp. 865-870 ◽  
Author(s):  
W. Zheng ◽  
W. M. Worek
Keyword(s):  
Heat Exchanger ◽  
Heat Pump ◽  
Initial Temperature ◽  
The Other ◽  
Sorption Heat ◽  
Sorption Heat Pump

Readsorption occurs inside a sorbent-bed heat exchanger during the pressurization and depressurization processes, causing the adsorbate to be relocated from one end of the sorption bed heat exchanger to the other. In this paper, the readsorption processes are quantitatively determined for both the pressurization and depressurization processes in a sorbent-bed heat exchanger with a uniform initial temperature, loading, and pressure. Also, the readsorption that occurs during a typical operation of a two-bed sorption heat pump is quantified. The results show that the readsorption can cause as much as 30 percent of the ammonia in a sorbent-bed heat exchanger to be reallocated.

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