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Water desalination through the dewpoint evaporative system.
- Source :
-
Energy Conversion & Management . Feb2021, Vol. 229, pN.PAG-N.PAG. 1p. - Publication Year :
- 2021
-
Abstract
- • Novel Dew Point Desalination system based on dew point cooling is introduced. • The system is described with a model based on the convective heat transfer coefficient. • Energy consumption of the system is lower than of the existing desalination methods. • The system operates without an additional heat source. • Applicability of the system in different climates is verified and confirmed. This paper presents the first numerical analysis of a novel Dew Point Desalination unit (DPD), which utilizes the phenomenon of the evaporative cooling process to minimize energy consumption. The proposed solution is based on a modular structure, which allows it to obtain any required water production capacity. The analyses for various operational parameters and various climatic conditions are based on the numerical simulations conducted using a validated mathematical model. The system performance was described with different factors, including specific energy consumption (SEC) and daily water production rate respected to 1 m^3*s^-1 of passing air stream (DWP). It is shown that the DPD system can operate in almost every climate zone, and the desalinated water production consumes less than 1.5 kWh*m^-3 of electric energy It is noted the best performance of the DPD system is achieved in the semi-arid, desert and subtropical climate zones. In these climate zones, the 2-stage DPD system allows the production of desalinated water with an electric energy consumption SEC lower than 0.5 kWh*m^-3. The additional benefit of the DPD system is its modularity. The presented DPD system stands as a module, that can be multiplied as needed to achieve the desired size of the desalination plant. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01968904
- Volume :
- 229
- Database :
- Academic Search Index
- Journal :
- Energy Conversion & Management
- Publication Type :
- Academic Journal
- Accession number :
- 148284775
- Full Text :
- https://doi.org/10.1016/j.enconman.2020.113757