hesam bahrehmand and majid bahrami n nm simon fraser...
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Optimal design of sorber beds for sorption systems Hesam Bahrehmand1 and Majid Bahrami2
Laboratory for Alternative Energy Conversion (LAEC), Mechatronic Systems Engineering,
Simon Fraser University www.sfu.ca/~mbahrami
1 Hesam Bahrehmand, sbahrehm@sfu.ca 2 Majid Bahrami, mbahrami@sfu.ca
Material
properties
Thermogravimetric sorption analyzer
Transient plane source
Sorber bed
geometry
Operating
conditions
Graphite flake additive
to increase sorbent
thermal diffusivity
Silica gel/CaCl2+PVA
2 2
22, ,2 2
( )i i ii i ig Fo
Fo
1 1
)()()(),,(n
nmm
nmn FoXFo
• Run-time=1.5 min on a 3.4 GHz PC
• Temperature and water uptake distribution
Sorption
system
performance
Optimized sorber bed heat
exchanger (OSHEX)
Off-the-shelf heat exchanger Gravimetric large
pressure jump
Analytical model
Model validation
Effect of graphite flake additive
Optimization of SCP & COP
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