Exergo-enviro-economic and yearly productivity analyses of conical passive solar still for sustainable solar distillation

Singh, Gajendra; Singh, Pawan Kumar; Saxena, Abhishek; Dobriyal, Ritvik; Kumar, Navneet; Singh, Desh Bandhu

doi:10.1007/s11356-023-29519-0

Cited by 14 publications

(1 citation statement)

References 54 publications

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“…Alcohol-based fuels release higher carbon dioxide emissions as compared to gasoline. Enviro-economic analysis comprises a wide scope ranging from conical passive solar still to the scenarios of decarbonization of buildings in hot climates [ 63 , 64 ].…”

Section: Introductionmentioning

confidence: 99%

Carbon taxation on high utility transport fuels: An implementation of enviro-economic analysis for the sustainable environment”

Usman,

Malik,

Nabi

et al. 2024

Heliyon

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Section: Introductionmentioning

confidence: 99%

Carbon taxation on high utility transport fuels: An implementation of enviro-economic analysis for the sustainable environment”

Usman,

Malik,

Nabi

et al. 2024

Heliyon

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Experimental study on stepped solar still equipped with reflectors for the concentration of sugarcane juice

Grewal,

Kumar,

Chaudhary

et al. 2024

Env Prog and Sustain Energy

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The present study accentuate the noteworthiness of ongoing research in evolving sustainable sugarcane juice evaporation technologies to help the non‐centrifugal sugar (NCS) industry. Concentrated sugarcane juice (CSJ) is the raw material for the production of variety of value added products. A stepped solar still (SSS) could be one of the inexpensive solutions to evaporate water from sugarcane juice. In this study, a SSS having internal and external reflectors (SSS‐IR‐ER) is tested at 25 mL/min of sugarcane juice for obtaining CSJ. The thermo‐enviro‐economic performance of SSS‐IR‐ER unit is compared with SSS and SSS‐IR (SSS having internal reflectors) units. The final brix content (oB) of the CSJ obtained from SSS‐IR‐ER is found to be maximum (20.7 oB) which is respectively, 16.90% and 7.25% higher than those of SSS and SSS‐IR units. The total distillate output (condensate) and heat transfer coefficients show similar trends as that of brix values, which proves thermal dominance of SSS‐IR‐ER unit. For SSS‐IR‐ER, the convective and evaporative heat transfer coefficients were found to be maximum as 3.89 and 73.78 W/m2°C, respectively. The average values of energy and exergy efficiencies for SSS‐IR‐ER were, respectively, evaluated as 55.25% and 2.7% which were also observed maximum among the tested units. SSS‐IR‐ER also found to command in environmental and economic aspects with maximum values of total productive cost ($0.218), CO2 mitigation (14.93 tonnes) and carbon credit earned ($186.73). It is inferred that SSS‐IR‐ER is more economical and thermally efficient than SSS and SSS‐IR units.

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Annual energy, exergy, and efficiency analyses for conical solar still combined with N number of evacuated collectors

Kumar,

Kumar

2024

Env Prog and Sustain Energy

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The utilization of solar energy technology for obtaining clean water for use of society in remote locations will help in fulfilling the sustainable development goals of the United Nations. Also, promotion of solar energy for the use of society will subside dependency on the fossil fuel or conventional energy. This article deals with the annual energy, exergy, and efficiency analyses of N identical ETCs incorporated conical solar still (NETC‐CSS). The thermal model for the proposed system has been developed based on equating input and output heats for different elements. The developed fundamental equations are fed to the MATLAB computational code. The four weather situations in each month of year for New Delhi climate is considered for the annual analysis. The annual energy, exergy, thermal efficiency, and exergy efficiency for NETC‐CSS are computed to be 1796.61, 170.19 kWh, 38.79%, and 3.94% under optimized values of mass flow rate and number of collectors. Results are compared with earlier published research. Concludingly, the increase in annual energy, exergy, thermal efficiency, and exergy efficiency for NETC‐CSS is 68.03% than modified solar still, 74.14% than conventional conical solar still, 61.12% than modified solar still, and 72.59% than solar still with parabolic trough collector.

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Exergo-enviro-economic and yearly productivity analyses of conical passive solar still for sustainable solar distillation

Cited by 14 publications

References 54 publications

Carbon taxation on high utility transport fuels: An implementation of enviro-economic analysis for the sustainable environment”

Carbon taxation on high utility transport fuels: An implementation of enviro-economic analysis for the sustainable environment”

Experimental study on stepped solar still equipped with reflectors for the concentration of sugarcane juice

Annual energy, exergy, and efficiency analyses for conical solar still combined with N number of evacuated collectors

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