Adaptable wind/solar powered hybrid system for household wastewater treatment

Soni, Akhilesh; Stagner, Jacqueline; Ting, David S.‐K.

doi:10.1016/j.seta.2017.02.015

Cited by 12 publications

(16 citation statements)

References 25 publications

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“…In this study, however, attention is given to the multieffect solar stills. Within the multieffect solar stills, there are various configurations that exist [7,13,15,17,18]. erefore, the scope was further narrowed to the MSS-SS.…”

Section: Description Of the Waterbed And The Vapour-based Mss-ssmentioning

confidence: 99%

“…erefore, the scope was further narrowed to the MSS-SS. MSS-SS can be supplied with thermal energy either indirectly or by the combination of the direct and indirect thermal energy supply [7,8,20]. Figure 1 shows a simplified version of the condensing tower of the MSS-SS.…”

Section: Description Of the Waterbed And The Vapour-based Mss-ssmentioning

confidence: 99%

“…e study reported that, based on the current regions experimenting on the thermal desalination devices and their solar radiation availability, there is an indication that southern Africa is capable of developing these systems as it receives enough solar radiation. Solar still can also be designed to be a hybrid system to increase their productivity [7]. Furthermore, there has been a need to increase the efficiency and productivity in the solar stills by including multieffect distillation in the solar stills [8].…”

Section: Introductionmentioning

confidence: 99%

“…To further enhance the productivity of the MSS-SS systems, the evacuation process has been employed with pressure gradient such that P 1 > P 2 > P 3 > P 4 and so on. at is, pressure in stage one, P 1 , is greater than that of stage 2, P 2 , and stage two pressure is greater than that of stage 3, P 3 , and so on [7,15]. e evacuation process decreases the pressure in the stages below atmospheric pressure and as a result decreases the boiling point of (SW).…”

Section: Introductionmentioning

confidence: 99%

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A Comparative Study of the Multistage Solar Stills with Stacked Stages (MSS-SS)

Mkhize

Msomi

2021

Journal of Engineering

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The current work conducts a comparative study of the waterbed multistage solar still with stacked stages (MSS-SS) and the vapour-based MSS-SS. Various experimental test results obtained from the vapour-based MSS-SS are briefly discussed in comparison with the waterbed MSS-SS reported in the literature. Based on the experimental observations and tests, the stage tray requires no maintenance and upper stages can operate even when the lower stages are nonoperational. About 0.8–41.3% distillate yield dropped from the upper stages when lower stages were exposed to the atmosphere. The upper stages increased their productivity by 7.1–15.4% when the lower stages were shut off completely. The waterbed-based MSS-SS preserves and reuses thermal energy much better even during off sunshine hours than the vapour-based system. The vapour-based MSS-SS is only productive during sunshine hours, and about 97-98% of the distillate is produced during daytime. Furthermore, the vapour based was able to produce 6.3 kg/day on average on the selected days.

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Section: Description Of the Waterbed And The Vapour-based Mss-ssmentioning

confidence: 99%

Section: Description Of the Waterbed And The Vapour-based Mss-ssmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Comparative Study of the Multistage Solar Stills with Stacked Stages (MSS-SS)

Mkhize

Msomi

2021

Journal of Engineering

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“…For this reason, many researchers have explored the possibility of using renewable energy in wastewater treatment processes. Stagner et al proposed a household wastewater treatment system running by wind/solar energy and found that the distilled water production was 43.3 kg/day and the efficiency approached 53%. A new design using simple distiller embedded to a cylindrical shape solar collector was investigated by Bait and Si‐Ameur .…”

Section: Introductionmentioning

confidence: 99%

A novel vacuum wastewater treatment plant integrated with a solar absorption system

Saleh

Al‐Nimr

2019

Int J Energy Res

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Summary In this investigation, a novel use of the solar absorption refrigeration systems was introduced by using it to enhance the operation of vacuum wastewater treatment plant. Wastewater treatment systems require a source of heat for evaporation, a cooling section for condensation and a mean of evacuation to facilitate evaporation. The solar absorption system can take over the first two tasks. Among the commercially available vacuum evaporators, one was selected and modified by replacing the conventional heat pump with the solar absorption system. Two validated mathematical models available in the literature, one for solar absorption subsystem and one for vacuum evaporation subsystem, were integrated together to perform the analysis. The impacts of solar absorption subsystem parameters along with vacuum evaporator subsystem parameters on the overall performance were investigated using the developed program. System performance was evaluated in terms of evaporation rate and condensate rate production. It was found that the degree of superheat had the greatest impact on the rate of evaporation. At low levels of supply temperature to the vacuum chamber, using only heat provided by the absorption system, the evaporation rate exceeded 60 kg/h. If the hot water was further heated by passing through the solar collector storage tank, the evaporation rate exceeded 200 kg/h.

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Introduction

2021

Engineering Design and Optimization of Thermofluid Systems

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Adaptable wind/solar powered hybrid system for household wastewater treatment

Cited by 12 publications

References 25 publications

A Comparative Study of the Multistage Solar Stills with Stacked Stages (MSS-SS)

A Comparative Study of the Multistage Solar Stills with Stacked Stages (MSS-SS)

A novel vacuum wastewater treatment plant integrated with a solar absorption system

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