Second Law Analysis of a Gas-Liquid Absorption Film
This paper reports an analytical study of the second law in the case of gas absorption into a laminar falling viscous incompressible liquid film. Velocity, temperature, and concentration profiles are determined and used for the entropy generation calculation. Irreversibilities due to heat transfer,...
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| Veröffentlicht in: | Journal of thermodynamics 2013, Vol.2013 (2013), p.1-10 |
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| container_issue | 2013 |
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| container_title | Journal of thermodynamics |
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| creator | Hidouri, Nejib Chermiti, Imen Ben Brahim, Ammar |
| description | This paper reports an analytical study of the second law in the case of gas absorption into a laminar falling viscous incompressible liquid film. Velocity, temperature, and concentration profiles are determined and used for the entropy generation calculation. Irreversibilities due to heat transfer, fluid friction, and coupling effects between heat and mass transfer are derived. The obtained results show that entropy generation is mainly due to coupling effects between heat and mass transfer near the gas-liquid interface. Total irreversibility is minimum at the diffusion film thickness. On approaching the liquid film thickness, entropy generation is mainly due to viscous irreversibility. |
| doi_str_mv | 10.1155/2013/909162 |
| format | Article |
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Velocity, temperature, and concentration profiles are determined and used for the entropy generation calculation. Irreversibilities due to heat transfer, fluid friction, and coupling effects between heat and mass transfer are derived. The obtained results show that entropy generation is mainly due to coupling effects between heat and mass transfer near the gas-liquid interface. Total irreversibility is minimum at the diffusion film thickness. On approaching the liquid film thickness, entropy generation is mainly due to viscous irreversibility.</description><identifier>ISSN: 1687-9244</identifier><identifier>EISSN: 1687-9252</identifier><identifier>DOI: 10.1155/2013/909162</identifier><language>eng</language><publisher>Cairo, Egypt: Hindawi Puplishing Corporation</publisher><subject>Boundary conditions ; Entropy ; Fluids ; Gas absorption ; Heat transfer ; Nuclear power plants ; Studies</subject><ispartof>Journal of thermodynamics, 2013, Vol.2013 (2013), p.1-10</ispartof><rights>Copyright © 2013 Nejib Hidouri et al.</rights><rights>Copyright © 2013 Nejib Hidouri et al. Nejib Hidouri et al. 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| fulltext | fulltext |
| identifier | ISSN: 1687-9244 |
| ispartof | Journal of thermodynamics, 2013, Vol.2013 (2013), p.1-10 |
| issn | 1687-9244 1687-9252 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1475520302 |
| source | EZB-FREE-00999 freely available EZB journals; Wiley Online Library (Open Access Collection); Alma/SFX Local Collection |
| subjects | Boundary conditions Entropy Fluids Gas absorption Heat transfer Nuclear power plants Studies |
| title | Second Law Analysis of a Gas-Liquid Absorption Film |
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