Traditional Solar Desalination Units

Zheng, Hongfei

doi:10.1016/b978-0-12-805411-6.00004-x

Cited by 10 publications

(7 citation statements)

References 26 publications

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“…Desalination efficiency is the ratio of the total latent heat of distillate evaporation to the solar energy entering the system [48]. It can be mathematically expressed as follows: The graph in Figure 8 shows the efficiency of each basin, namely, using the additional absorber of CP_60 charcoal briquettes, GS_60 charcoal briquettes, SO_60 charcoal briquettes, and without briquettes (control).…”

Section: Discussionmentioning

confidence: 99%

Solar desalination with charcoal briquettes from plants as an additional absorption sorbent

Jafri,

Tarigan,

Adoe

2024

Heritage and Sustainable Development

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Water is the most abundant substance on Earth, but only 2.5% can be used for drinking and farming; the rest is seawater containing much salt. Solar desalination is a great tool to solve this problem for small families and remote areas. However, the disadvantage of using solar power is still the low productivity of distillate because it depends on the season, region, and intensity of solar radiation. Solar radiation heat absorbing and storing materials are a favorable solution in increasing evaporation rate, efficiency, and total distillate. Many have been developed to date, but these materials require more expenditure to be used as radiation heat sinks and stores. Charcoal derived from wood has high thermal energy absorption and porosity. Four desalination devices were used, namely using an additional absorber made from Kapok wood (Ceiba pentandra) coded CP_60, Gamal wood (Gliricidia sepium) coded GS_60, Kusambi wood (Schleichera oleosa) coded SO_60, and without additional absorber as a comparison. All desalination devices have the same shape and size, simple, with an area of 0.09 m2 each. Before the additional absorber base material is used, drying, charring, grinding, meshing, pressing, and briquetting are carried out. The test results show that the additional absorber of natural materials affects the evaporation rate, desalination efficiency, and total distillate water. The distillation device using Gamal wood (Gliricidia sepium) additional absorber material, coded GS_60, provides maximum performance such as distillate water yield every 30 minutes and total distillate 124 ml/0.09 m2, 28.19% efficiency, and evaporation rate.

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Section: Discussionmentioning

confidence: 99%

Solar desalination with charcoal briquettes from plants as an additional absorption sorbent

Jafri,

Tarigan,

Adoe

2024

Heritage and Sustainable Development

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“…The interplay of heat localization, resulting in a temperature increase, as well as parameters such as the vapor pressure, density, surface tension, and viscosity were carefully considered for understanding the evaporation rate of the mixtures. An increased evaporation rate for the ethanol–water and other binary liquid mixtures could find many applications, ranging from phase separation to distillation and desalination. , …”

Section: Discussionmentioning

confidence: 99%

Enhanced Solar Thermal Evaporation of Ethanol–Water Mixtures, through the Use of Porous Media

et al. 2018

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A significant enhancement of solar irradiation induced evaporation of water, and ethanol-water mixtures, through the use of carbon foam based porous media, is demonstrated. A relationship between the consequent rate of mass loss, with respect to the equilibrium vapor pressure, dynamic viscosity, surface tension, and density, was developed to explain experimental observations. The evaporative heat loss was parametrized through two convective heat transfer coefficients-one related to the surface and another related to the vapor external to the surface. The work promotes a better understanding of thermal processes in binary liquid mixtures with applications ranging from phase separation to distillation and desalination.

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“…The average energy consumption required for thermal desalination process to produce 1 m 3 of freshwater is about 10–15 kWh. [ 23 ] Despite this high energy input, thermal desalination technologies still dominate the market in middle east countries due to the harsh Arabian Gulf seawater with much higher salinity and turbidity.…”

Section: Commercial Seawater Desalination Plantmentioning

confidence: 99%

Interfacial Solar Evaporation: From Fundamental Research to Applications

Wu,

Lu,

Ren

et al. 2024

Advanced Materials

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In the last decade, interfacial solar steam generation (ISSG), powered by natural sunlight garnered significant attention due to its great potential for low‐cost and environmentally friendly clean water production in alignment with the global decarbonization efforts. In this review, we aim to share the knowledge and engage with a broader readership about the current progress of ISSG technology and the facing challenges to promote further advancements towards practical applications. The first part of this review assesses the current strategies for enhancing energy efficiency of ISSG systems, including optimizing light absorption, reducing energy losses, harvesting additional energy, and lowering evaporation enthalpy. Subsequently, we elucidate the current challenges faced by ISSG technologies, notably salt accumulation and bio‐fouling issues in practical applications and discuss contemporary methods to overcome these challenges. In the end, we introduce potential applications of ISSG, ranging from initial seawater desalination and industrial wastewater purification to power generation, sterilization, soil remediation, and innovative concept of solar sea farm, highlighting the promising potential of ISSG technology in contributing to sustainable and environmentally conscious practices. Based on the review and in‐depth understanding of these aspects, we propose the future research focuses to address potential issues in both fundamental research and practical applications.This article is protected by copyright. All rights reserved

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Traditional Solar Desalination Units

Cited by 10 publications

References 26 publications

Solar desalination with charcoal briquettes from plants as an additional absorption sorbent

Solar desalination with charcoal briquettes from plants as an additional absorption sorbent

Enhanced Solar Thermal Evaporation of Ethanol–Water Mixtures, through the Use of Porous Media

Interfacial Solar Evaporation: From Fundamental Research to Applications

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