Heat and mass transfer characteristic of vertical falling film generator with annular structure for ammonia-water system

2019 ◽  
Vol 11 (6) ◽  
pp. 064701
Author(s):  
Weijia Huang ◽  
Zhongmin Wu ◽  
Ping Cheng
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Water System ◽  
Transfer Characteristic ◽  
Falling Film ◽  
Ammonia Water ◽  
Mass Transfer Characteristic ◽  
Annular Structure

COMPARISON OF HEAT AND MASS TRANSFER IN FALLING FILM AND BUBBLE ABSORBERS OF AMMONIA-WATER

2002 ◽  
Vol 15 (3) ◽  
pp. 191-205 ◽  
Author(s):  
Ki Bong Lee ◽  
Byung Hee Chun ◽  
Jae Cheol Lee ◽  
Jae Chun Hyun ◽  
Sung Hyun Kim
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Falling Film ◽  
Ammonia Water

Heat and mass transfer of ammonia-water in falling film evaporator

2011 ◽  
Vol 5 (4) ◽  
pp. 358-366
Author(s):  
Xianbiao Bu ◽  
Weibin Ma ◽  
Huashan Li
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Falling Film ◽  
Ammonia Water ◽  
Film Evaporator

A Fully Wet and Fully Dry Tiny Circular Fin Method for Heat and Mass Transfer Characteristics for Plain Fin-and-Tube Heat Exchangers Under Dehumidifying Conditions

2006 ◽  
Vol 129 (9) ◽  
pp. 1256-1267 ◽  
Author(s):  
Worachest Pirompugd ◽  
Chi-Chuan Wang ◽  
Somchai Wongwises
Keyword(s):  
Heat Transfer ◽  
Mass Transfer ◽  
Heat Exchanger ◽  
Heat And Mass Transfer ◽  
Heat Exchangers ◽  
Heat Transfer Characteristic ◽  
Transfer Characteristic ◽  
Tube Heat Exchanger ◽  
Mass Transfer Characteristic ◽  
Transfer Characteristics

This study proposes a new method, namely the “fully wet and fully dry tiny circular fin method,” for analyzing the heat and mass transfer characteristics of plain fin-and-tube heat exchangers under dehumidifying conditions. The present method is developed from the tube-by-tube method proposed in the previous study by the same authors. The analysis of the fin-and-tube heat exchangers is carried out by dividing the heat exchanger into many tiny segments. A tiny segment will be assumed with fully wet or fully dry conditions. This method is capable of handling the plain fin-and-tube heat exchanger under fully wet and partially wet conditions. The heat and mass transfer characteristics are presented in dimensionless terms. The ratio of the heat transfer characteristic to mass transfer characteristic is also studied. Based on the reduced results, it is found that the heat transfer and mass transfer characteristics are insensitive to changes in fin spacing. The influence of the inlet relative humidity on the heat transfer characteristic is rather small. For one and two row configurations, a considerable increase of the mass transfer characteristic is encountered when partially wet conditions take place. The heat transfer characteristic is about the same in fully wet and partially wet conditions provided that the number of tube rows is equal to or greater than four. Correlations are proposed to describe the heat and mass characteristics for the present plain fin configuration.

Numerical study on heat and mass transfer characteristic of plate absorber

2005 ◽  
Vol 25 (14-15) ◽  
pp. 2219-2235 ◽  
Author(s):  
Jung-In Yoon ◽  
Thanh-Tong Phan ◽  
Choon-Geun Moon ◽  
Pradeep Bansal
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Numerical Study ◽  
Transfer Characteristic ◽  
Mass Transfer Characteristic ◽  
Plate Absorber
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