Thermo-physical characteristics of passive double slope solar still loaded with MWCNTs and Al2O3-water based nanofluid

Sahota, Lovedeep; Arora, Swati; Singh, Harendra; Sahoo, Girijashankar

doi:10.1016/j.matpr.2020.01.600

Cited by 23 publications

(3 citation statements)

References 12 publications

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“…The thermal conductivity of the base fluid (water) is obtained by (Nieto de Castro et al, 1986 (Sahota et al, 2020;.…”

Section: Discussion and Resultsmentioning

confidence: 99%

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Numerical Analysis of Optimizing a Heat Sink and Nanofluid Concentration Used in a Thermoelectric Solar Still: an Economic and Environmental Study

Shoeibi

2021

EREM

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In this paper, mathematical modelling is performed for a group of fins in a heat sink in order to determine the optimum dimensionless thickness of the fins using 8 different types of cooling nanofluids including nanoparticles of aluminium, alumina, titanium, titanium dioxide, copper, copper oxide, iron and iron oxide (hematite) with water as the base fluid in a thermoelectric solar still. The heat sink is used to enhance thermoelectric cooling and heating to water. The flow crossing fins is considered laminar and fully developed. Copper with high thermal conductivity is considered as the material of flat plate fins. Different nanofluids with volume fractions of 1%, 3%, 5%, 7% and 9% with a nanoparticle diameter of 25, 50 and 75 nm are analyzed for fins with rectangular cross sections. Besides, the economic and environmental analysis is conducted on the thermoelectric solar still. It is also observed that the range of 3.65% to 3.95% is obtained for the optimum volume fraction in the used nanofluids. The carbon dioxide mitigation based on the environmental parameter and exergoenvironmental parameters in the solar still is about 23.78 tons of CO2 and 1.04 tons of CO2, respectively.

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“…The thermal conductivity of the base fluid (water) is obtained by (Nieto de Castro et al, 1986 (Sahota et al, 2020;.…”

Section: Discussion and Resultsmentioning

confidence: 99%

“…The thermal conductivity of the base fluid (water) is obtained by (Nieto de Castro et al, 1986 (Sahota et al, 2020; Fig. 3 presents the effect of volume fraction percentage of various nanofluids on the optimum thickness of fins in the heat sink with an average temperature of 310 K and nanoparticle diameter of 25 nm.…”

mentioning

confidence: 99%

Numerical Analysis of Optimizing a Heat Sink and Nanofluid Concentration Used in a Thermoelectric Solar Still: an Economic and Environmental Study

Shoeibi

2021

EREM

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“…It has been observed that with the utilization of nanofluid the productivity enhances by improving the thermal conductivity to some extent. Alumina is one of the most suitable one for the purpose of improvement in the productivity of water desalination due to its availability and low cost [16], [17]. Active solar still has proved to be better solution when it comes to productivity enhancement as compared to passive water desalination.…”

Section: Introductionmentioning

confidence: 99%

Effect of different aluminium oxide based nanofluid concentrations on the efficiency of solar water desalination system

KATIYAR

Gupta

2023

Journal of Thermal Engineering

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In this study, the effect of different concentration of the Aluminium oxide-based nanofluid on the performance of Solar Desalination system was discussed. The Aluminium Oxide was used in different concentrations 1%, 2% and 6% on weight basis. The flow rate was also varied and its effect on the system efficiency was discussed. The nanofluid was compared with the water and there was improvement occurred in the efficiency during variation of incident radiation. With an increase in the concentration of Aluminium oxide nanoparticles, improvement in the efficiency was attained. More efficiency was attained at 6% nanoparticles addition with compared to 1% and 2%. With an increase in mass flow rate of the fluid, the nanofluid also showed better performance in terms of improvement in the efficiency.

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Impacts of Adding Porous Media and Phase Change Material on Performance of Solar Water Distiller System Under Iraq Climatic Condition: An Experimental Study

Basim,

Alomar

2024

Energy Storage

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This current investigation involves an experimental inspection of adding porous medium and phase change material (PCM) above the absorber surface to enhance the performance of a single slope and single basin solar water distiller system. To demonstrate the effectiveness of adding porous medium and PCM, the performance of the modified system and conventional system is compared under similar operating conditions. The system that uses porous medium and PCM is called MSS‐FPP, whereas the conventional system is called MSS‐F. Rectangular fins are fixed above the absorber plate for both models. For MSS‐FPP model, three different types of porous medium (stones, nuts, and black glass balls) are used in addition to paraffin wax filled inside circular tubes as a PCM. The data are collected in November and December 2023 in Mosul City, Iraq. The experiments are carried out under different water depths. The findings confirm that the performance of MSS‐FPP model is better than MSS‐F model by 41.32% (for water depth 3 cm) and 30.61% (for water depth 5 cm). The results also indicated that the water productivity of MSS‐FPP model is higher than MSS‐F model by 41.67% (for water depth 3 cm) and 30.65% (for water depth 5 cm). For MSS‐FPP model, the maximum water productivity and efficiency are obtained when using black glass balls as compared to nuts and stones types, where the highest water temperature and water productivity values are found equal 54°C and 1.01 kg/m2 for water depth 3 cm. The enhancement in the performance of modified solar water distiller system (MSS‐FPP) shows that using a porous medium and PCM has considerable impacts on the evaporation rate, heat exchange, and rate of heat transfer.

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Thermo-physical characteristics of passive double slope solar still loaded with MWCNTs and Al2O3-water based nanofluid

Cited by 23 publications

References 12 publications

Numerical Analysis of Optimizing a Heat Sink and Nanofluid Concentration Used in a Thermoelectric Solar Still: an Economic and Environmental Study

Numerical Analysis of Optimizing a Heat Sink and Nanofluid Concentration Used in a Thermoelectric Solar Still: an Economic and Environmental Study

Effect of different aluminium oxide based nanofluid concentrations on the efficiency of solar water desalination system

Impacts of Adding Porous Media and Phase Change Material on Performance of Solar Water Distiller System Under Iraq Climatic Condition: An Experimental Study

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