Enhancing tubular solar still performance using novel PCM-tubes

Elashmawy, Mohamed; Alhadri, Muapper; Ahmed, Mohamed M. Z.

doi:10.1016/j.desal.2020.114880

Cited by 83 publications

(13 citation statements)

References 28 publications

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“…The obtained mean energy efficiencies for SDS, SDS-TESU, and SDS-DTESU were 15.91%, 17.37%, and 18.28%, respectively. In a prior study, PCMs were integrated into the SDSs and thermal efficiency improved by approximately 38% [90]. In another study, the energy efficiency of an SDS was improved by about 30by using different basin materials [91].…”

Section: Resultsmentioning

confidence: 99%

Experimental Performance Analysis of a Solar Desalination System Modified with Natural Dolomite Powder Integrated Latent Heat Thermal Storage Unit

2022

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Solar desalination systems are effective and sustainable applications that are utilized to obtain potable water from saline or contaminated water. In this research, three solar desalination systems, including a conventional system, a phase change material (PCM)-based thermal energy storage unit (TESU), and a natural dolomite powder integrated PCM-based TESU, were structured and experimentally investigated. The developed solar desalination systems were analyzed simultaneously and the findings were discussed in detail. According to the empirically obtained outcomes, utilizing PCM-based TESUs and dolomite-powder-embedded PCM-based TESUs increased daily cumulative productivity by 10.15% and 17.70%, respectively, in comparison to the conventional distiller. Employing dolomite powder increased the energy and exergy efficiencies of the conventional distiller from 15.91% to 18.28% and from 1.26% to 1.78%, respectively. Moreover, environmental metrics such as global warming potential and the sustainability index of the developed solar desalination systems were analyzed within the scope of this work.

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Section: Resultsmentioning

confidence: 99%

Experimental Performance Analysis of a Solar Desalination System Modified with Natural Dolomite Powder Integrated Latent Heat Thermal Storage Unit

2022

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“…It was reported that using gravel enhances the freshwater productivity and efficiency by 14% and 13.8%, respectively. Elashmawy et al 13 used phase change material tubes to enhance the performance of a TSS with a parabolic solar concentrator tracking system. Paraffin wax was loaded inside black aluminum tubes with copper rods inside and then placed inside the trough.…”

Section: Introductionmentioning

confidence: 99%

A tubular solar still integrated with a heat pipe

Al-Dulaimi

Amori

2023

Heat Trans

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The aim of this work is to explore the thermal performance of a tracked tubular solar still (TSS) with a parabolic trough concentrator in Baghdad (33.27° N, 44.37° E) in September 2022. The present tubular still is distinguished by its hexagonal glass cover. The effect of integrating the TSS with a heat pipe, the still tilt angle (10°, 15°), and the depth of saline water inside the still partitions on the productivity of freshwater are investigated. The results showed that using heat pipe enhances the freshwater productivity by 25%–40% and the efficiency by 25%. For the still integrated with heat pipe, as the water depth is increased from 5.5 to 6.5 cm the productivity of freshwater is increased by 16% and 20% for tilt angles 10° and 15°, respectively.

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“…To address rising energy demand, researchers have focused on the need to develop clean and renewable energy sources and associated technologies [ 3 , 4 , 5 ]. In recent years, solutions such as the use of better fluids and energy storage devices have been investigated [ 6 , 7 , 8 , 9 ]. Thermal energy storage (TES) is a critical subsystem in solar energy applications.…”

Section: Introductionmentioning

confidence: 99%

A Numerical Investigation of a Melting Rate Enhancement inside a Thermal Energy Storage System of Finned Heat Pipe with Nano-Enhanced Phase Change Material

et al. 2022

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Thermal energy storage via the use of latent heat and phase transition materials is a popular technology in energy storage systems. It is vital to research different thermal enhancement techniques to further improve phase transition materials’ weak thermal conductivity in these systems. This work addresses the creation of a basic shell and a tube thermal storage device with wavy outer walls. Then, two key methods for thermal augmentation are discussed: fins and the use of a nano-enhanced phase change material (NePCM). Using the enthalpy–porosity methodology, a numerical model is developed to highlight the viability of designing such a model utilizing reduced assumptions, both for engineering considerations and real-time predictive control methods. Different concentrations of copper nanoparticles (0, 2, and 4 vol%) and wavenumbers (4,6 and 8) are investigated in order to obtain the best heat transmission and acceleration of the melting process. The time required to reach total melting in the studied TES system is reduced by 14% and 31% in the examined TES system, respectively, when NePCM (4 vol% nanoparticles) and N = 8 are used instead of pure PCM and N = 4. The finding from this investigation could be used to design a shell-and-tube base thermal energy storage unit.

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Enhancing tubular solar still performance using novel PCM-tubes

Cited by 83 publications

References 28 publications

Experimental Performance Analysis of a Solar Desalination System Modified with Natural Dolomite Powder Integrated Latent Heat Thermal Storage Unit

Experimental Performance Analysis of a Solar Desalination System Modified with Natural Dolomite Powder Integrated Latent Heat Thermal Storage Unit

A tubular solar still integrated with a heat pipe

A Numerical Investigation of a Melting Rate Enhancement inside a Thermal Energy Storage System of Finned Heat Pipe with Nano-Enhanced Phase Change Material

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