The paper presents a new design of a falling film absorber that could considerably reduce the absorber size without penalizing the vapor and coolant side pressure drops. The proposed design is based on the fundamental characteristics of an efficient absorber design: large liquid-vapor interfacial area and good wetting characteristics. A finite difference scheme is developed to numerically investigate the performance of the design. The results indicate that the proposed design is more compact and efficient than the horizontal tube-type falling film absorber.
Issue Section:
Evaporation, Boiling, and Condensation
Keywords:
Absorber,
Condenser,
Absorption,
Falling Film,
film flow,
two-phase flow,
refrigeration,
wetting,
finite difference methods,
pipe flow,
heat transfer,
mass transfer
Topics:
Absorption,
Coolants,
Design,
Flow (Dynamics),
Mass transfer,
Vapors,
Wetting,
Temperature,
Heat,
Heat transfer,
Water
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.Copyright © 2005
by American Society of Mechanical Engineers
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