Augmenting the potable water produced from single slope solar still using CNT-doped paraffin wax as energy storage: an experimental approach

Chamkha, Ali J.; Rufuss, D. Dsilva Winfred; Kabeel, A.E.; Sathyamurthy, Ravishankar; Abdelgaid, Mohammed; Manokar, A. Muthu; Madhu, B.

doi:10.1007/s40430-020-02703-w

Cited by 48 publications

(5 citation statements)

References 17 publications

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“…When maintaining water temperature using PCMs in solar water heaters, the water temperature is relatively constant during the day. Chamkha et al [ 116 ] investigated the impact of using MWCNTs and paraffin as PCMs in a solar still for hot water generation. The thermal properties of PCMs were improved by mixing MWCNTs into paraffin wax.…”

Section: Cnt-based Solar Heat Conversion Devicesmentioning

confidence: 99%

Recent Development of Carbon-Nanotube-Based Solar Heat Absorption Devices and Their Application

Islam

Furuta

2022

Nanomaterials

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Population growth and the current global weather patterns have heightened the need to optimize solar energy harvesting. Solar-powered water filtration, electricity generation, and water heating have gradually multiplied as viable sources of fresh water and power generation, especially for isolated places without access to water and energy. The unique thermal and optical characteristics of carbon nanotubes (CNTs) enable their use as efficient solar absorbers with enhanced overall photothermal conversion efficiency under varying solar light intensities. Due to their exceptional optical absorption efficiency, low cost, environmental friendliness, and natural carbon availability, CNTs have attracted intense scientific interest in the production of solar thermal systems. In this review study, we evaluated CNT-based water purification, thermoelectric generation, and water heating systems under varying solar levels of illumination, ranging from domestic applications to industrial usage. The use of CNT composites or multilayered structures is also reviewed in relation to solar heat absorber applications. An aerogel containing CNTs was able to ameliorate water filtering performance at low solar intensities. CNTs with a Fresnel lens improved thermoelectric output power at high solar intensity. Solar water heating devices utilizing a nanofluid composed of CNTs proved to be the most effective. In this review, we also aimed to identify the most relevant challenges and promising opportunities in relation to CNT-based solar thermal devices.

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Section: Cnt-based Solar Heat Conversion Devicesmentioning

confidence: 99%

Recent Development of Carbon-Nanotube-Based Solar Heat Absorption Devices and Their Application

Islam

Furuta

2022

Nanomaterials

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“…Therefore, it is not without grace to refer to the exergy definition: in any energy system, an amount of accessible energy, which can potentially be turned into useful work, is known as the exergy. Therefore, the thermal exergy can be calculated, just when the obtained heat is employed in a secondary purpose, e.g., a performed work by Chamkha et al [50], which used the mentioned heat for a solar desalination system. In this study, the absorbed heat by fins was dissipated to the ambient medium.…”

Section: Exergy Analysis and Entropy Generationmentioning

confidence: 99%

“…formed work by Chamkha et al [50], which used the mentioned heat for a solar desalination system. In this study, the absorbed heat by fins was dissipated to the ambient medium.…”

Section: Exergy Analysis and Entropy Generationmentioning

confidence: 99%

An Experimental Study on Simultaneous Use of Metal Fins and Mirror to Improve the Performance of Photovoltaic Panels

2022

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The world is inconceivable without an everlasting demand for energy. Nowadays, various kinds of renewable energies, such as solar energy, are developing rapidly, since they have the least negative environmental impacts. Irradiation intensity is one the most important parameters in photovoltaic (PV) technology, and so integration of mirrors with a PV module can improve its performance. Mounting mirrors increases the radiation intensity but, at the same time, raises the surface temperature, which in turn reduces the electrical efficiency. The novelty of this study is keeping the cell temperature low despite receiving more radiation by installing 10 aluminum fins on the back of the panel. All tests were experimentally performed in the hot climate of Dezful, Iran. As a result, the best tilt angle of the mirror was found at 30°, where the output power was enhanced by 3.3% and electrical efficiency was reduced by 0.5% compared with the conventional case. When aluminum fins were added as heat sinks, both output power and electrical efficiency were enhanced by 11.4% and 13.1%, respectively. Moreover, comprehensive discussions on both energy and exergy are provided. The entropy generation was also calculated and accordingly, the case of PV 30 + fin generates 1.6% less entropy than the base one.

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“…It was found that the cumulative productivity of solar still with energy storage at 1 cm and 2 cm water depth was about 5.27 and 4.87 kg whereas the CSS had a yield of 3.8 kg. (Chamkha et al 2020)analysed the performance of solar still with Carbon Nano Tubes doped paraffin wax for enhancing the freshwater yield. It was found the solar still with CNT doped paraffin wax improved the freshwater production by about 41.4% and 26.4% relative to CSS and solar still with paraffin wax, respectively.…”

Section: The Role Of Design Parameters In Productivity Enhancementmentioning

confidence: 99%

An experimental study on eco-friendly and cost-effective natural materials for productivity enhancement of single slope solar still

Natarajan¹,

Suraparaju²,

Elavarasan

et al. 2021

Environ Sci Pollut Res

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Augmenting the potable water produced from single slope solar still using CNT-doped paraffin wax as energy storage: an experimental approach

Cited by 48 publications

References 17 publications

Recent Development of Carbon-Nanotube-Based Solar Heat Absorption Devices and Their Application

Recent Development of Carbon-Nanotube-Based Solar Heat Absorption Devices and Their Application

An Experimental Study on Simultaneous Use of Metal Fins and Mirror to Improve the Performance of Photovoltaic Panels

An experimental study on eco-friendly and cost-effective natural materials for productivity enhancement of single slope solar still

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