The role of desalination and contribution of hybrid solar desalination system towards primary health care

Isah, Abubakar Sadiq; Shafiai, Siti Habibah; Takaijudin, Husna Bint; Singh, Balbir Singh Mahinder; Gilani, Syed I.U.

doi:10.1016/j.cscee.2022.100253

Cited by 5 publications

(2 citation statements)

References 9 publications

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“…Furthermore, coal without using a Fresnel lens is ideal for sterilization of E. coli because the thermal deformation temperature of these bacteria is 51 °C [46]. Isah et al [47] succeeded in producing distilled water without E. coli using granular charcoal in solar desalination of seawater containing 54.8/100 mL E. coli. It is better to use the recommended temperature to dry agricultural products.…”

Section: Dry Testsmentioning

confidence: 99%

Investigation of granular natural stone materials as photothermal absorbers for sustainable and environmentally friendly energy harvesting

Sarifudin,

Yaningsih,

Kristiawan

et al. 2024

J Appl Eng Science

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The development of cost-effective and environmentally friendly solar thermal technologies that deliver high performance poses several challenges, where the collector and absorber components play a pivotal role. This research addresses these issues by investigating enhanced temperature generation using a 30 cm × 30 cm Fresnel lens collector under solar illumination from a xenon lamp. Natural stone materials (andesite, coal, and pumice), characterized by granular structures with an average diameter of 1.68–2.00 mm, were selected because of their abundance and eco-friendliness. This research is focused on evaluating the effect of Fresnel lens on temperature generation performance. Two types of temperature generation tests were carried out: wet tests (where the natural stone materials were immersed in distilled water) and dry tests (where the natural stone materials were used in dry conditions). The morphologies of the natural stone materials were examined using an optical microscope and scanning electron microscope. Furthermore, the optical properties of the natural stone materials were analyzed using an ultraviolet–visible (UV–VIS) spectrophotometer. The findings revealed that there were significant improvements in the photothermal absorber performance with the use of a Fresnel lens in dry tests, where the highest temperature was achieved for coal (103.25 °C), followed by andesite (89.00 °C) and pumice (73.00 °C). The impurities varied between the materials, where the impurities were most dominant for pumice while coal was more uniform. Further examination using scanning electron microscope showed that all materials had light-trapping structures in the form of rough surfaces, pores, and crack gaps. Andesite was dominated by rough surfaces, while coal and pumice were dominated by crack gaps and pores, respectively. However, based on the UV–VIS spectrophotometric results, there were no correlations between the optical properties (absorbance, reflectance, and transmittance) and temperature achieved by the photothermal absorber materials. This research demonstrates the potential of using natural stone materials as photothermal absorbers in combination with a Fresnel lens collector for low-to-medium temperature solar thermal applications.

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Section: Dry Testsmentioning

confidence: 99%

Investigation of granular natural stone materials as photothermal absorbers for sustainable and environmentally friendly energy harvesting

Sarifudin,

Yaningsih,

Kristiawan

et al. 2024

J Appl Eng Science

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“…Practical and experimental studies were conducted to determine the effect of the geometric shape of the device on the evaporative mass and the amount of total production. Solar stills are designed in cylindrical [21], spherical [22], prismatic [23], semi-tubular [24], and multi-slope shapes [25], in addition to the traditional shape [26]. The current study describes the possibility of designing and implementing a single-slope solar still with a different geometric shape to ensure reduced cost, increased e ciency, and ease of installation and use.…”

Section: Introductionmentioning

confidence: 99%

A practical comparative study of the performance of a single siope solar still with a new design

saeed,

Hameed,

Abbass

2024

Preprint

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Water distillation systems using free solar energy are known to be easy to install, low-cost, and environmentally friendly. However, due to the low productivity of fresh water for solar stills of all types, many practical and theoretical studies have been presented to enhance the productivity of solar stills using different engineering designs and improvement techniques. The overall productivity of the model is affected by several factors, the most important of which are the design, the nature of operating conditions, and environmental conditions. The current study aims to determine the effect of changing the geometric shape of the absorber plate on the cumulative productivity of a single-slope-single-basin solar still. A single-slope solar still with a different design and a specially shaped absorption basin was studied, and the proposed model was compared with the traditional model for the same manufacturing specifications and under the same test conditions. The traditional square shape has been modified so that it begins with a three-sided polygon and ends with an arc, while maintaining the same total area of the absorption plate. In this modification, the shadow areas are reduced and the solar radiation generated on the base is blocked by the walls, in addition to benefiting from using the back wall to act as a reflective arch for solar radiation. The new design, with and without an internal reflector, is examined and compared with the traditional model under the weather conditions of the Iraqi city of Najaf. Using the new-design solar still increased daily productivity by about 47.96%, while the cost will decrease to about $0.023 per liter/0.25 m2.

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An experimental investigation of the solar distiller basin's performance using a flat mirror and vertical barriers

Alaskaree

2023

Case Studies in Chemical and Environmental Engineering

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The role of desalination and contribution of hybrid solar desalination system towards primary health care

Cited by 5 publications

References 9 publications

Investigation of granular natural stone materials as photothermal absorbers for sustainable and environmentally friendly energy harvesting

Investigation of granular natural stone materials as photothermal absorbers for sustainable and environmentally friendly energy harvesting

A practical comparative study of the performance of a single siope solar still with a new design

An experimental investigation of the solar distiller basin's performance using a flat mirror and vertical barriers

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