Effect of surface cooling and tube thickness on the performance of a high temperature standalone tubular solar still

Elashmawy, Mohamed

doi:10.1016/j.applthermaleng.2019.04.068

Cited by 77 publications

(9 citation statements)

References 45 publications

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“…Manokar et al [5] found that a basin solar still integrated with a flat solar collector yielded 45% more freshwater compared with that without a collector. Integration of a solar still with a parabolic concentrator increases the trough temperature by approximately 40 °C, and achieves a 676% productivity enhancement [6,7] which is recently escalated to 890% by using gravel as heat storage material [8]. Many researchers tried to add solar absorbing materials into basin water to increase the solar energy harvest [9,10].…”

Section: Introductionmentioning

confidence: 99%

Experimental study on three-effect tubular solar still under vacuum and immersion cooling

et al. 2021

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Section: Introductionmentioning

confidence: 99%

Experimental study on three-effect tubular solar still under vacuum and immersion cooling

et al. 2021

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“…The temperature gradient between water and glass cover is an essential factor affecting the productivity of solar still, with a higher gradient resulting in higher productivity (Sadineni et al, 2006). Some researchers have investigated the use of water sprinklers to achieve lower glass temperature (Tarawneh and Muafag, 2007) or intermittent cold water pouring over the glass cover (Elashmawy, 2019). Rainfall may have a similar temperature lowering effect on the glass cover of solar still.…”

Section: Variation Of Rainfall and Productivitymentioning

confidence: 99%

Performance analysis of a basin-type solar still during harmattan

Ogunseye

Oladepo

2022

Preprint

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Abstract. This study investigates the variational effect of climate factors on the productivity of a basin-type solar still during the harmattan season under the tropical savanna climate. The study was extended to examine the influences of selected climatic, operational, and design (COD) parameters on productivity. Additionally, the efficiency of solar still in removing water impurities during harmattan was also investigated. Explorative data and statistical analysis, and laboratory testing methods were used for these investigations. Results show that seasonal effects of harmattan can either increase or lower productivity. The effect of wind speed on productivity was not clearly defined during the harmattan season. Although high irradiation is essential for increased productivity, its effect is modified by other factors. Water temperature is the most significant to productivity amongst selected factors studied via the design of experiment (DOE). Moreover, the effect of harmattan on the water quality produced was not established. The main contribution of this work is the insights generated for both qualitative and quantitative reliability performance of a basin-type solar still under prevailing climate conditions.

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“…They discovered that using cooling technology increased distillation rate by 31.4 percent. Elashmawy [8] studied the influence of surface cooling and tube thickness on the performance of a high temperature solo tubular solar still using empirical data. The effects of absorber surface shapes on tubular still distillation rate were investigated by Elshamy and El-Said [9].…”

Section: Introductionmentioning

confidence: 99%

Potential of tubular solar still with rectangular trough for water production under vacuum condition

et al. 2022

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Water scarcity, energy scarcity, and demographic difficulties are all real concerns for many countries throughout the world. Due to the high solar intensities and long sunshine duration in Saudi Arabia, solar water desalination can be effectively utilized for obtaining fresh water. The aim of this paper is explore the potential of simple-design and plentiful rectangular trough in desalination under vacuum condition. Numerical analysis of the heat and mass transfer of tubular solar still (TTS) containing rectangular trough was performed. A two-dimensional code that solves the systems of equations for mass, momentum, concentration, and energy was developed and validated. The effect of the rib and the vertical elevation of the trough on heat and mass transfer were investigated. The numerical results showed that the distillation rate is significantly increased with the increase of the rib of the trough at a minimum of 19.78%. In addition, the distillation rate is increased at a minimum of 12.88% when the trough moves towards the upper side of the glass cover where the condensation takes place.

show abstract

Effect of surface cooling and tube thickness on the performance of a high temperature standalone tubular solar still

Cited by 77 publications

References 45 publications

Experimental study on three-effect tubular solar still under vacuum and immersion cooling

Experimental study on three-effect tubular solar still under vacuum and immersion cooling

Performance analysis of a basin-type solar still during harmattan

Potential of tubular solar still with rectangular trough for water production under vacuum condition

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