Abstract
This study aimed to enhance distilled water production by employing conventional single-slope solar distillers with continuous seawater input. Three solar absorbers—i.e., a flat absorber, an absorber with 10 fins, and an absorber with 15 fins—were designed and examined experimentally. The seawater entered the distillers continuously due to gravity. Moreover, the seawater level inside the distillers was kept constant by using a floating ball valve. The overall size of each distiller was fixed at 1136 mm × 936 mm × 574 mm. The performance of the distillers was analyzed and discussed. The average yields of the flat absorber, the absorber with 10 fins, and the absorber with 15 fins were 1.185 L/d, 1.264 L/d, and 1.404 L/d, respectively. The results of the absorber with 15 fins were about 18.5% higher than those of the flat absorber. The experimental results were compared with the established correlations. This new design with increased water yield provides an effective approach for harvesting sunlight in remote tropical regions for small-scale solar desalination.
Highlights
In Indonesia, there are still many places that have water shortages, especially during the dry season
Indonesia is an archipelagic country with plenty of access to the ocean, which could be used as a source of freshwater to avoid clean water shortages
Many devices can be used for converting saltwater into freshwater, including electrical water distillers, fuel/gas water distillers, solar distillers, and reverse osmosis (RO)
Summary
In Indonesia, there are still many places that have water shortages, especially during the dry season. As mentioned in our previous work [1], West Java, Gunung Kidul, East Java, Nusa Tenggara Barat, and Nusa Tenggara Timur lack access to clean water during the dry season. People who live in these areas have to walk long distances to obtain clean water, and some of them still consume dirty water. Indonesia is an archipelagic country with plenty of access to the ocean, which could be used as a source of freshwater to avoid clean water shortages. Many devices can be used for converting saltwater into freshwater, including electrical water distillers, fuel/gas water distillers, solar distillers, and reverse osmosis (RO). The conversion of seawater to freshwater using these technologies requires a large amount of energy and is high-cost
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