Solar Desalination Using Fresnel Lens as Concentrated Solar Power Device: An Experimental Study in Tropical Climate
Solar desalination is a renewable energy-driven method that produces freshwater from saline/brackish water. Conventional solar desalination units are equipped with an inclined transparent condensing plate placed over a feedwater basin containing saline water. The process is limited to a small quanti...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2020-10-01
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| Series: | Frontiers in Energy Research |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2020.565542/full |
| _version_ | 1828481952418627584 |
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| author | Wing Sum Choong Zhi Yong Ho Rubina Bahar |
| author_facet | Wing Sum Choong Zhi Yong Ho Rubina Bahar |
| author_sort | Wing Sum Choong |
| collection | DOAJ |
| description | Solar desalination is a renewable energy-driven method that produces freshwater from saline/brackish water. Conventional solar desalination units are equipped with an inclined transparent condensing plate placed over a feedwater basin containing saline water. The process is limited to a small quantity of production because of scattered solar irradiation and the unavailability of solar heat due to intermittent cloudy weather. In this study, a Fresnel lens has been used to concentrate solar energy onto a spot to increase the local temperature of feedwater and the evaporation rate. Flat Fresnel lenses on a double sloped passive solar still were used, where the focal points were adjusted to fall directly on the feedwater. The experiments were conducted for two different geometries and alongside the comparison between the conventional and the modified solar still; the number of Fresnel lenses was also varied. Saline solution with a concentration of 20,000 ppm was used as the feedwater. The research is aimed to be implemented for producing freshwater in the natural weather conditions of Malaysia. It was found that using two Fresnel lenses instead of a single large one gives a boost to the production of freshwater per unit solar irradiation by 39%. The produced water has a total dissolved solids (TDS) value of 37 ppm, which is well within the drinking water standard range according to the World Health Organization. |
| first_indexed | 2024-12-11T08:05:02Z |
| format | Article |
| id | doaj.art-1ee77cb7b40e4d82be44906fbeaa96da |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-12-11T08:05:02Z |
| publishDate | 2020-10-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-1ee77cb7b40e4d82be44906fbeaa96da2022-12-22T01:15:00ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2020-10-01810.3389/fenrg.2020.565542565542Solar Desalination Using Fresnel Lens as Concentrated Solar Power Device: An Experimental Study in Tropical ClimateWing Sum ChoongZhi Yong HoRubina BaharSolar desalination is a renewable energy-driven method that produces freshwater from saline/brackish water. Conventional solar desalination units are equipped with an inclined transparent condensing plate placed over a feedwater basin containing saline water. The process is limited to a small quantity of production because of scattered solar irradiation and the unavailability of solar heat due to intermittent cloudy weather. In this study, a Fresnel lens has been used to concentrate solar energy onto a spot to increase the local temperature of feedwater and the evaporation rate. Flat Fresnel lenses on a double sloped passive solar still were used, where the focal points were adjusted to fall directly on the feedwater. The experiments were conducted for two different geometries and alongside the comparison between the conventional and the modified solar still; the number of Fresnel lenses was also varied. Saline solution with a concentration of 20,000 ppm was used as the feedwater. The research is aimed to be implemented for producing freshwater in the natural weather conditions of Malaysia. It was found that using two Fresnel lenses instead of a single large one gives a boost to the production of freshwater per unit solar irradiation by 39%. The produced water has a total dissolved solids (TDS) value of 37 ppm, which is well within the drinking water standard range according to the World Health Organization.https://www.frontiersin.org/articles/10.3389/fenrg.2020.565542/fullsolar energysolar desalinationsolar stillconcentrated solar powerFresnel lens |
| spellingShingle | Wing Sum Choong Zhi Yong Ho Rubina Bahar Solar Desalination Using Fresnel Lens as Concentrated Solar Power Device: An Experimental Study in Tropical Climate Frontiers in Energy Research solar energy solar desalination solar still concentrated solar power Fresnel lens |
| title | Solar Desalination Using Fresnel Lens as Concentrated Solar Power Device: An Experimental Study in Tropical Climate |
| title_full | Solar Desalination Using Fresnel Lens as Concentrated Solar Power Device: An Experimental Study in Tropical Climate |
| title_fullStr | Solar Desalination Using Fresnel Lens as Concentrated Solar Power Device: An Experimental Study in Tropical Climate |
| title_full_unstemmed | Solar Desalination Using Fresnel Lens as Concentrated Solar Power Device: An Experimental Study in Tropical Climate |
| title_short | Solar Desalination Using Fresnel Lens as Concentrated Solar Power Device: An Experimental Study in Tropical Climate |
| title_sort | solar desalination using fresnel lens as concentrated solar power device an experimental study in tropical climate |
| topic | solar energy solar desalination solar still concentrated solar power Fresnel lens |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2020.565542/full |
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