Solar Desalination Using Fresnel Lens as Concentrated Solar Power Device: An Experimental Study in Tropical Climate

Choong, Wing Sum; Ho, Zhi Yong; Bahar, Rubina

doi:10.3389/fenrg.2020.565542

Cited by 9 publications

(5 citation statements)

References 20 publications

(21 reference statements)

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“…Feedwater's local temperature and evaporation rate were both increased using a Fresnel lens, as described by Choong et al (2020) [36]. The feedwater was focused on using flat Fresnel lenses mounted atop a double-sloped passive solar still.…”

Section: Gang Et Al (2019)mentioning

confidence: 99%

Advancements in Fresnel Lens Technology across Diverse Solar Energy Applications: A Comprehensive Review

Rashid,

Al-Obaidi,

Mahdi

et al. 2024

Energies

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Concentration of solar energy may be obtained by reflection, refraction, or a combination of the two. The collectors of a reflection system are designed to concentrate the sun’s rays onto a photovoltaic cell or steam tube. Refractive lenses concentrate light by having it travel through the lens. The sun’s rays are partially reflected and then refracted via a hybrid technique. Hybrid focus techniques have the potential to maximize power output. Fresnel lenses are an efficient tool for concentrating solar energy, which may then be used in a variety of applications. Development of both imaging and non-imaging devices is occurring at this time. Larger acceptance angles, better concentration ratios with less volume and shorter focal length, greater optical efficiency, etc., are only some of the advantages of non-imaging systems over imaging ones. This study encompasses numerical, experimental, and numerical and experimental studies on the use of Fresnel lenses in various solar energy systems to present a comprehensive picture of current scientific achievements in this field. The framework, design criteria, progress, and difficulties are all dissected in detail. Accordingly, some recommendations for further studies are suggested.

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Section: Gang Et Al (2019)mentioning

confidence: 99%

Advancements in Fresnel Lens Technology across Diverse Solar Energy Applications: A Comprehensive Review

Rashid,

Al-Obaidi,

Mahdi

et al. 2024

Energies

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“…In fact, polystyrene nonwoven has outperformed PET and polyamide textile systems in solar distillation, producing more distilled water by absorbing more distillation by-product water vapor. Textile-based solar distillation is being researched for desalination and wastewater treatment plants, offering the potential to provide clean water to underserved communities while improving system efficiency and sustainability 22 , 23 , 39 .…”

Section: Introductionmentioning

confidence: 99%

Performance enhancement of the solar still using textiles and polyurethane rollers

Wiener,

Khan,

Shah

2024

Sci Rep

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The acquisition of clean drinking water in regions with limited power sources has been a challenge of paramount concern. Solar stills have emerged as a popular and sustainable option for obtaining clean water in such regions. This process involves employing solar radiation to heat up water, which is then condensed to obtain potable water. The present study introduces a solar still system that is both cost-effective and energy-efficient, while simultaneously ensuring sustainability. Fabric-coated polyurethane rollers with capillary action enhance evaporation area, leading to notable performance improvements. Water vapour condensed on the cooling chamber's inclined aluminium plate and collected in the distillate chamber within the solar still. The thermal, energetic, and economic performance and productivity of the proposed model were evaluated. The fabricated solar still boasted maximum instantaneous system efficiency and exergy efficiency of approximately 62.16% and 7.67%, respectively. This system's cost-effectiveness and performance improvements are particularly noteworthy. The daily average distillate productivity of the proposed still was estimated at 1.14 L/m2, resulting in an annual production rate of 416.54 L/year. The estimated cost of producing 1 L of distillate was 0.023 $.

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“…For both BSSS and TSSS, the application value depends on its fresh water yield performance. The methods to improve the fresh water yield of the BSSS and TSSS include adding a solar concentrator (Choong et al, 2020), designing a multi-stage still (Yeang et al, 2023), increasing the evaporation area by adding sand troughs (Nagaraju et al, 2022), adding the nanofluids (Sangeetha et al, 2022), and so on. In a study by Tiwar (Tiwar, 1988), it is concluded that the daily fresh water yield and the purity of the fresh water from a horizontal tubular solar seawater still (HTSSS) are higher than that from a BSSS under the same condition.…”

Section: Introductionmentioning

confidence: 99%

Performance investigation and mass transfer enhancement of a novel cone-type solar seawater still

Yang,

Chang,

Zhang

et al. 2023

Front. Energy Res.

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There are some disadvantages in the operating process of the basin solar seawater still (BSSS), such as long mass transfer distance, large heat indolence, huge floor space, and poor bearing pressure ability. A novel cone-type solar seawater still (CTSSS) is presented to overcome the weaknesses of the BSSS in this study. The CTSSS has the characteristics of seawater liquid film evaporation, short mass transfer distance, the condensation sleeve is parallel to and above the evaporation sleeve, and the condensation area is larger than the evaporation area. In order to clarify the performance of the CTSSS, the influence mechanism of feed seawater mass flow rate, heating power and heating temperature on the fresh water yield of the CTSSS was analyzed, the method of enhancing the mass transfer of the binary mixed gas in the CTSSS was explored, and the law of heat and mass transfer of the binary mixed gas in the annular enclosed small space was investigated. The results indicated that the maximum fresh water yield of the CTSSS is 62.7 g/20 min at the feed seawater mass flow rate of 400 g/h when the input power is 200 W, which is 4.5% higher than that when the feed seawater mass flow rate is 300 g/h. The performance ratio (PR) of the CTSSS is increased as the heating power, the PR of the CTSSS is 0.65 when 180 W heating power is employed. The steady state fresh water yield of the CTSSS with mirror condensation sleeve at 85°C is 84.6 g/20 min, which is 12.1% higher than that with non-mirror condensation sleeve Compared with the CTSSS with non-mirror condensation sleeve, the value of proportions of radiative heat transfer in the total heat transfer of the CTSSS with mirror condensation sleeve decreased by 6.6%, and the value of proportions of evaporative heat transfer increased by 6.4%. This study would provide a reference for small-scale decentralized application of solar desalination in remote areas.

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Solar Desalination Using Fresnel Lens as Concentrated Solar Power Device: An Experimental Study in Tropical Climate

Cited by 9 publications

References 20 publications

Advancements in Fresnel Lens Technology across Diverse Solar Energy Applications: A Comprehensive Review

Advancements in Fresnel Lens Technology across Diverse Solar Energy Applications: A Comprehensive Review

Performance enhancement of the solar still using textiles and polyurethane rollers

Performance investigation and mass transfer enhancement of a novel cone-type solar seawater still

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