NDLI: Mathematical simulation of lithium bromide solution laminar falling film evaporation in vertical tube

Content Provider	Springer Nature Link
Author	Shi, Chengming Wang, Yang Hu, Huili Yang, Ying
Copyright Year	2010
Abstract	For utilization of the residual heat of flue gas to drive the absorption chillers, a lithium-bromide falling film in vertical tube type generator is presented. A mathematical model was developed to simulate the heat and mass coupled problem of laminar falling film evaporation in vertical tube. In the model, the factor of mass transfer was taken into account in heat transfer performance calculation. The temperature and concentration fields were calculated. Some tests were conducted for the factors such as Re number, heating flux, the inlet concentration and operating pressure which can affect the heat and mass transfer performance in laminar falling film evaporation. The heat transfer performance is enhanced with the increasing of heat flux. An increasing inlet concentration can weaken the heat transfer performance. The operating pressure hardly affects on heat and mass transfer. The bigger inlet Re number means weaker heat transfer effects and stronger mass transfer. The mass transfer obviously restrains the heat transfer in the falling film solution. The relation between dimensionless heat transfer coefficient and the inlet Re number is obtained.
Starting Page	239
Ending Page	244
Page Count	6
File Format	PDF
ISSN	10032169
Journal	Journal of Thermal Science
Volume Number	19
Issue Number	3
e-ISSN	1993033X
Language	English
Publisher	SP Science Press
Publisher Date	2010-05-16
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	lithium bromide solution refrigeration falling film evaporation heat and mass transfer Engineering Thermodynamics, Heat and Mass Transfer Engineering Fluid Dynamics Classical Continuum Physics
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics

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