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An Experimental Study on Absorber with Spiral Tube in Absorption Heat Pump  

Min, Byong-Hun (Department of Chemical Engineering, University of Suwon)
Publication Information
Applied Chemistry for Engineering / v.21, no.1, 2010 , pp. 71-75 More about this Journal
Abstract
The efficient performance of absorber is of great importance for the absorption heat pump cycle. The experimental study of absorber with spiral tube of tangential feeding of liquid phase has been investigated using methanol-glycerine as a working fluid. The effect of change in absorber operating conditions was analyzed to improve the performance. The increase in solution flow rate and cooling flow rate positively affects the absorber performance while an increse in the solution concentration negatively affects the absorber performance. The results showed that mass absorption flux was in the range of $0.2{\sim}0.6kgm^{-2}sec^{-1}$, the solution heat transfer coefficient between 1.6 and $4.2kwm^{-2}K^{-1}$, the absorber thermal load from 0.9 to 1.5kw and the mass transfer coefficient from 0.9 to 1.7 m/sec.
Keywords
absorber; methanol-glycerine; performance; operating conditions;
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