Liquid desiccant dehumidification and regeneration process to meet cooling and freshwater needs of desert greenhouses

Handle URI:
http://hdl.handle.net/10754/621480
Title:
Liquid desiccant dehumidification and regeneration process to meet cooling and freshwater needs of desert greenhouses
Authors:
Lefers, Ryan; Bettahalli Narasimha, Murthy Srivatsa ( 0000-0001-8605-0241 ) ; Nunes, Suzana Pereira ( 0000-0002-3669-138X ) ; Fedoroff, Nina; Davies, Philip A.; Leiknes, TorOve ( 0000-0003-4046-5622 )
Abstract:
Agriculture accounts for ~70% of freshwater usage worldwide. Seawater desalination alone cannot meet the growing needs for irrigation and food production, particularly in hot, desert environments. Greenhouse cultivation of high-value crops uses just a fraction of freshwater per unit of food produced when compared with open field cultivation. However, desert greenhouse producers face three main challenges: freshwater supply, plant nutrient supply, and cooling of the greenhouse. The common practice of evaporative cooling for greenhouses consumes large amounts of fresh water. In Saudi Arabia, the most common greenhouse cooling schemes are fresh water-based evaporative cooling, often using fossil groundwater or energy-intensive desalinated water, and traditional refrigeration-based direct expansion cooling, largely powered by the burning of fossil fuels. The coastal deserts have ambient conditions that are seasonally too humid to support adequate evaporative cooling, necessitating additional energy consumption in the dehumidification process of refrigeration-based cooling. This project evaluates the use of a combined-system liquid desiccant dehumidifier and membrane distillation unit that can meet the dual needs of cooling and freshwater supply for a greenhouse in a hot and humid environment. © 2016 Balaban Desalination Publications. All rights reserved.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Water Desalination and Reuse Research Center (WDRC); Environmental Science and Engineering Program
Citation:
Lefers R, Bettahalli NMS, Nunes SP, Fedoroff N, Davies PA, et al. (2016) Liquid desiccant dehumidification and regeneration process to meet cooling and freshwater needs of desert greenhouses. Desalination and Water Treatment 57: 23430–23442. Available: http://dx.doi.org/10.1080/19443994.2016.1173383.
Publisher:
Informa UK Limited
Journal:
Desalination and Water Treatment
Issue Date:
19-Apr-2016
DOI:
10.1080/19443994.2016.1173383
Type:
Article
ISSN:
1944-3994; 1944-3986
Sponsors:
The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST). The authors wish to acknowledge and thank Shinthujan Selvanayagam of Aston University, who contributed design drawings for the direct contact desiccator, and Rami Alsouqi for his input related to commercial greenhouse systems.
Additional Links:
http://www.tandfonline.com/doi/10.1080/19443994.2016.1173383
Appears in Collections:
Articles

Full metadata record

DC FieldValue Language
dc.contributor.authorLefers, Ryanen
dc.contributor.authorBettahalli Narasimha, Murthy Srivatsaen
dc.contributor.authorNunes, Suzana Pereiraen
dc.contributor.authorFedoroff, Ninaen
dc.contributor.authorDavies, Philip A.en
dc.contributor.authorLeiknes, TorOveen
dc.date.accessioned2017-01-09T06:06:10Z-
dc.date.available2016-11-03T08:30:23Z-
dc.date.available2017-01-09T06:06:10Z-
dc.date.issued2016-04-19-
dc.identifier.citationLefers R, Bettahalli NMS, Nunes SP, Fedoroff N, Davies PA, et al. (2016) Liquid desiccant dehumidification and regeneration process to meet cooling and freshwater needs of desert greenhouses. Desalination and Water Treatment 57: 23430–23442. Available: http://dx.doi.org/10.1080/19443994.2016.1173383.en
dc.identifier.issn1944-3994-
dc.identifier.issn1944-3986-
dc.identifier.doi10.1080/19443994.2016.1173383-
dc.identifier.urihttp://hdl.handle.net/10754/621480-
dc.description.abstractAgriculture accounts for ~70% of freshwater usage worldwide. Seawater desalination alone cannot meet the growing needs for irrigation and food production, particularly in hot, desert environments. Greenhouse cultivation of high-value crops uses just a fraction of freshwater per unit of food produced when compared with open field cultivation. However, desert greenhouse producers face three main challenges: freshwater supply, plant nutrient supply, and cooling of the greenhouse. The common practice of evaporative cooling for greenhouses consumes large amounts of fresh water. In Saudi Arabia, the most common greenhouse cooling schemes are fresh water-based evaporative cooling, often using fossil groundwater or energy-intensive desalinated water, and traditional refrigeration-based direct expansion cooling, largely powered by the burning of fossil fuels. The coastal deserts have ambient conditions that are seasonally too humid to support adequate evaporative cooling, necessitating additional energy consumption in the dehumidification process of refrigeration-based cooling. This project evaluates the use of a combined-system liquid desiccant dehumidifier and membrane distillation unit that can meet the dual needs of cooling and freshwater supply for a greenhouse in a hot and humid environment. © 2016 Balaban Desalination Publications. All rights reserved.en
dc.description.sponsorshipThe research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST). The authors wish to acknowledge and thank Shinthujan Selvanayagam of Aston University, who contributed design drawings for the direct contact desiccator, and Rami Alsouqi for his input related to commercial greenhouse systems.en
dc.publisherInforma UK Limiteden
dc.relation.urlhttp://www.tandfonline.com/doi/10.1080/19443994.2016.1173383en
dc.rightsThis is an Accepted Manuscript of an article published by Taylor & Francis in Desalination and Water Treatment on April 19, 2016, available online: http://www.tandfonline.com/doi/10.1080/19443994.2016.1173383.en
dc.subjectDehumidificationen
dc.subjectGreenhouse coolingen
dc.subjectLiquid desiccant regenerationen
dc.subjectMembrane distillationen
dc.titleLiquid desiccant dehumidification and regeneration process to meet cooling and freshwater needs of desert greenhousesen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.contributor.departmentEnvironmental Science and Engineering Programen
dc.identifier.journalDesalination and Water Treatmenten
dc.eprint.versionPost-printen
dc.contributor.institutionEvan Pugh Professor Emerita, Penn State University, University Park, PA 16802, USAen
dc.contributor.institutionSustainable Environment Research Group, School of Engineering and Applied Science, Aston University, Birmingham, B4 7ET, UKen
kaust.authorLefers, Ryanen
kaust.authorBettahalli Narasimha, Murthy Srivatsaen
kaust.authorNunes, Suzana Pereiraen
kaust.authorLeiknes, TorOveen

Version History

VersionItem Editor Date Summary
2 10754/621480grenzdm2017-01-09 05:57:32.269Accepted manuscript received from Ryan Lefers.
1 10754/621480.1grenzdm2016-11-03 08:30:23.0
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