Thermodynamic and water analysis on augmentation of a solar still with copper tube heat exchanger in coarse aggregate

Dhivagar, Ramasamy; Sundararaj, S.

doi:10.1007/s10973-018-7746-1

Cited by 35 publications

(6 citation statements)

References 31 publications

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“…The heat exchanger improved the performance in terms of the distillate productivity of the solar still. Dhivagar and Sundararaj [58] modified a solar still coupled with a copper material heat exchanger, using a coarse aggregate as an energy-absorbing material, as shown in Figure 4. They concluded that the modification of the solar still produced 28% and 17% higher efficiencies compared with the conventional solar still.…”

Section: Solar Desalination System With Heat Exchangermentioning

confidence: 99%

Applications of Heat Exchanger in Solar Desalination: Current Issues and Future Challenges

Elsheikh

Panchal²,

Shanmugan

et al. 2022

Water

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Solar desalination is a process to convert saline water into potable water by the application of solar energy. The enhancement of the distillate output of the solar desalination is low, so it is not considered as a method to produce potable water. A heat exchanger is an important device used for heat transfer applications. The present review article illustrates the application of a heat exchanger with a solar desalination system to enhance the distillate output. In the current review, it is found that the heat exchanger is an important device to improve the distillate productivity of the solar desalination system. Finally, the future work and future challenges of using a heat exchanger with a solar desalination system are presented.

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Section: Solar Desalination System With Heat Exchangermentioning

confidence: 99%

Applications of Heat Exchanger in Solar Desalination: Current Issues and Future Challenges

Elsheikh

Panchal²,

Shanmugan

et al. 2022

Water

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“…The cost-effectiveness of solar desalination was assessed for economic aspects. 38,39 The various parameters of economic analysis, such as exergoeconomic, enviroeconomic, and enviroexergoeconomic analysis assists to achieve a cost-effective design of devices. 40,41 Yousef et al 42 used numerous energy storage media in CSS and got a cost per liter (CPL) of 0.0343 $.…”

Section: Introductionmentioning

confidence: 99%

Performance enhancement of a solar still using magnetic powder as an energy storage medium‐exergy and environmental analysis

Dhivagar¹,

Shoeibi

Kargarsharifabad

et al. 2022

Energy Science & Engineering

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The use of different energy storage materials can have a high effect on the water productivity of solar desalination. This study evaluates the impact of magnetic powders on modified solar still (MPSS) performance and compares the results with conventional solar still (CSS). Black iron oxide magnetic powder was selected to increase solar radiation absorption. The black iron magnetic powder simultaneously acts as a thermal storage material and a porous absorber medium. The thermal energy stored in the magnetic powder improved the performance of the MPSS during peak solar irradiation hours, resulting in higher productivity. The results showed that the thermal performance of MPSS was higher than CSS. The MPSS exhibited a 39.8% higher evaporative and 14.5% higher convective heat transfer rate compared with CSS. Results showed that the cumulative water productivity of MPSS was 31.2% greater than CSS. Also, the energy and exergy efficiencies of MPSS were improved by 18.9% and 19.04%, respectively, compared with CSS. Moreover, the predicted payback period in MPSS and CSS were 3.2 and 4.3 months. Additionally, the CO 2 reduction of MPSS was improved by approximately 45.53% compared with that of CSS. The results also showed that the exergoeconomic parameter of MPSS and CSS with energy base was equal to 33.1 and 24.56 kWh/$, respectively.

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“…13 Even though multi-effect and multi-stage flash desalination are expensive, they have high energy utilization efficiency and are unreliable because their outputs are insufficient to obtain a large amount of fresh water, and this may lead to a point where the payback period is more. [14][15][16][17][18] Even though solar desalination is a promising method to prevent the fresh water shortage, it is highly unlikely that it will be exploited like fossil fuels in a short time. 19 Efforts are being made to combine different solar still configurations with various energy storage materials such as fins, corrugated wick, phase change materials, sponges, stones, gravel, nano-fluids to attain higher efficiency.…”

Section: Introductionmentioning

confidence: 99%

A review on solar desalination techniques using vacuum technology

Rahul¹,

Ramanathan²,

Dhivagar³

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The explosion of the population is alarming as the demand increases exponentially for resources. The freshwater resources are being exploited, and innovative and economical methods are analyzed experimentally to extract freshwater from various sources. Desalination performed using solar energy is an economical method to obtain fresh water from seawater and brackish water, which are available prolifically in nature. Since the phenomenon of desalination demands solar irradiation, which is an intermittent source of energy, distillation is not feasible in some places where the solar intensity is low. In the solar desalination, the saturation temperature of the saline water is very less at low saturation pressure thereby requiring large latent heat of evaporation. Hence, vacuum pressure could be the most appropriate choice to extract drinkable water in territories where the intensity of solar irradiation is poor. In order to this, the utilization of evacuated tube collectors and vacuum technology in the solar desalination unit has been considered for discussion as it is the most sought-after subject of interest in the current scenario. Methods for implementing the vacuum technology are also introduced with plenty of experimentations. Vacuum technology implemented in the evaporator of desalination system has been supplemented with nano-fluids and phase change materials to accelerate the evaporation process, increase efficiency, and obtain a greater productivity. In this review, the performance of the solar desalination unit under the vacuum effect were discussed in detail. Furthermore, in economic analysis, the cost effectiveness and cost per liter of distillate (CPL) were discussed to estimate the payback period. Finally, this review also suggests the vision to identify the future scope for additional implementations.

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Thermodynamic and water analysis on augmentation of a solar still with copper tube heat exchanger in coarse aggregate

Cited by 35 publications

References 31 publications

Applications of Heat Exchanger in Solar Desalination: Current Issues and Future Challenges

Applications of Heat Exchanger in Solar Desalination: Current Issues and Future Challenges

Performance enhancement of a solar still using magnetic powder as an energy storage medium‐exergy and environmental analysis

A review on solar desalination techniques using vacuum technology

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