A dynamic model for predicting condensation heat and mass transfer characteristics in falling film condenser

2021 ◽  
Vol 176 ◽  
pp. 121434
Author(s):  
Jiatong Jiang ◽  
Bin Hu ◽  
R.Z. Wang ◽  
Hua Liu ◽  
Zhiping Zhang ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Dynamic Model ◽  
Falling Film ◽  
Transfer Characteristics

Heat and mass transfer characteristics of a horizontal tube falling film absorber with small diameter tubes

2007 ◽  
Vol 44 (4) ◽  
pp. 437-444 ◽  
Author(s):  
Jung-In Yoon ◽  
Thanh Tong Phan ◽  
Choon-Geun Moon ◽  
Ho-Saeng Lee ◽  
Seok-Kwon Jeong
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Small Diameter ◽  
Horizontal Tube ◽  
Falling Film ◽  
Transfer Characteristics

Comparison of Heat and Mass Transfer Characteristics of Absorption of R134a in DMAC and DMF for a Falling Film Horizontal Tube Absorber

2014 ◽  
Author(s):  
Kamal Kant Yadu ◽  
Shaligram Tiwari ◽  
Prakash Maiya Manoor
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Heat And Mass Transfer ◽  
Numerical Technique ◽  
Horizontal Tube ◽  
Computer Code ◽  
Mean Value ◽  
Falling Film ◽  
Transfer Characteristics

The present work is a comparative study of heat and mass transfer behaviour during the absorption of R134a (1, 1, 1, 2 Tetrafluroethane) vapour into absorbents, DMAC (N, N-Dimethylacetamide) and DMF (N, N-Dimethylformamide). Initially, the heat and mass transfer characteristics for absorption of R134a into DMF for a falling film horizontal tubular absorber have been investigated by employing a two-dimensional numerical technique. The related governing equations are solved using a developed computer code in MATLAB. Then, a comparison of absorption characteristics of R134a-DMAC and R134a-DMF is made. For the mean value of operating parameters considered, the R134a-DMF solution absorbs more due to higher diffusion coefficient value of DMF than DMAC. The mass transfer coefficient is observed to decrease at a steeper rate at the entrance of the first tube for both working fluids, after which gradual decrease in the mass transfer coefficient is observed further downstream.

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
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