CARRIER-GAS DESALINATION ANALYSIS USING HUMIDIFICATION- DEHUMIDIFICATION CYCLE
Analysis of data from a staged humidification-dehumidification desalination process, using air as a carrier-gas (Dewvaporation process), reveals that the energy reuse factor, f and molar production flux, Pf (kgmoles/m 2 hr) are quantitatively related to the maximum temperature of saturated evaporati...
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| Published in | Chemical engineering communications Vol. 177; no. 1; pp. 183 - 193 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Taylor & Francis Group
01.01.2000
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| Subjects | |
| Online Access | Get full text |
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| Abstract | Analysis of data from a staged humidification-dehumidification desalination process, using air as a carrier-gas (Dewvaporation process), reveals that the energy reuse factor, f and molar production flux, Pf (kgmoles/m
2
hr) are quantitatively related to the maximum temperature of saturated evaporation and the number of stages employed, N. The data spanned 3 <f< 25 with 1 < Pf< 4. The f*Pf relationship identifies a hyperbolic form for the case of realistic but large number of stages, N. The relationship can be used to elucidate the effective dry gas heat transfer coefficient from data and, in another form, predict the number of stages needed to satisfy a design after selection of the, f Pf, and the maximum temperature of water saturation. In all cases, the number of stages must exceed the desired energy reuse factor, f by an order of magnitude in order to reduce the detrimental effect of the number of stages on the f*Pf product to only 10%. For water containing up to 7000 ppm total dissolved solids (TDS), the detrimental effect of the boiling point elevation on the f*Pf product is also only 10%, |
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| AbstractList | Analysis of data from a staged humidification-dehumidification desalination process, using air as a carrier-gas (Dewvaporation process), reveals that the energy reuse factor, f and molar production flux, Pf (kgmoles/m
2
hr) are quantitatively related to the maximum temperature of saturated evaporation and the number of stages employed, N. The data spanned 3 <f< 25 with 1 < Pf< 4. The f*Pf relationship identifies a hyperbolic form for the case of realistic but large number of stages, N. The relationship can be used to elucidate the effective dry gas heat transfer coefficient from data and, in another form, predict the number of stages needed to satisfy a design after selection of the, f Pf, and the maximum temperature of water saturation. In all cases, the number of stages must exceed the desired energy reuse factor, f by an order of magnitude in order to reduce the detrimental effect of the number of stages on the f*Pf product to only 10%. For water containing up to 7000 ppm total dissolved solids (TDS), the detrimental effect of the boiling point elevation on the f*Pf product is also only 10%, |
| Author | BECKMAN, JAMES R. HAMIEH, BASSEM M. |
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| CitedBy_id | crossref_primary_10_1016_j_desal_2005_09_034 |
| Cites_doi | 10.1016/0011-9164(89)87009-2 |
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| Copyright | Copyright Taylor & Francis Group, LLC 2000 |
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| DOI | 10.1080/00986440008912168 |
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| EndPage | 193 |
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| References | Beckman J. R. (CIT0005) 1988; 2 Bird R. B. (CIT0011) 1960 Larson R. (CIT0003) 1989; 73 Larson R. (CIT0004) 1989 Perry R. H. (CIT0008) 1984 Myers F. R. (CIT0006) 1987 McCabe W. L. (CIT0009) 1993 Cabot Corporation (CIT0002) 1995 CIT0007 Werling P. H. (CIT0010) 1990 Fosselgard G. (CIT0001) 1989 |
| References_xml | – year: 1995 ident: CIT0002 publication-title: Product Information contributor: fullname: Cabot Corporation – start-page: 76 year: 1989 ident: CIT0001 publication-title: Desalination contributor: fullname: Fosselgard G. – volume: 2 start-page: 1 year: 1988 ident: CIT0005 publication-title: Technical Proceedings of the National Water Supply Improvement Association contributor: fullname: Beckman J. R. – volume-title: Perry's Chemical Engineers' Handbook. year: 1984 ident: CIT0008 contributor: fullname: Perry R. H. – ident: CIT0007 – volume-title: MS Thesis, year: 1987 ident: CIT0006 contributor: fullname: Myers F. R. – volume: 73 year: 1989 ident: CIT0003 publication-title: Desalination doi: 10.1016/0011-9164(89)87009-2 contributor: fullname: Larson R. – volume-title: MS Thesis year: 1990 ident: CIT0010 contributor: fullname: Werling P. H. – volume-title: Proceedings of the Fourth World Congress of Desalination and Water Reuse year: 1989 ident: CIT0004 contributor: fullname: Larson R. – volume-title: Unit Operations of Chemical Engineering year: 1993 ident: CIT0009 contributor: fullname: McCabe W. L. – volume-title: Transport Phenomena. year: 1960 ident: CIT0011 contributor: fullname: Bird R. B. |
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| Snippet | Analysis of data from a staged humidification-dehumidification desalination process, using air as a carrier-gas (Dewvaporation process), reveals that the... |
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| SubjectTerms | Desalination dewvaporation humidification-dehumidification |
| Title | CARRIER-GAS DESALINATION ANALYSIS USING HUMIDIFICATION- DEHUMIDIFICATION CYCLE |
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