Abstract
This paper intended to evaluate the performance of a new design of solar still integrated with a V-groove solar air collector. In this system, an air channel was placed under the basin to simultaneously raise the water temperature and the temperature difference between evaporation and condensation zones. The performance of this modified solar still was compared with a conventional one in terms of their productivity, cost of water production, energy, exergy, energy payback time, enviroeconomic, and exergoeconomic analysis. All the experiments were performed in the climatic conditions of Zanjan, Iran. Findings revealed that the freshwater produced in the modified system was 170% more than the traditional one. Moreover, the annual output energy and exergy of the modified still was 170% and 257% higher than the conventional one, respectively. The results also showed that integrating the solar air collector with solar still improved the energy and exergy parameters, energy payback time, and energy production factor 26, 67, 17, and 21% more than traditional solar still, respectively. Additionally, the modified solar still was found to be 40.6% more efficient than the conventional type in the Co2 mitigation. Furthermore, based on the experimental results, three characteristic equations were presented to predict the daily water production, efficiency, and Co2 mitigation of the conventional and modified solar stills based on the solar intensity and ambient temperature. Finally, a characteristic equation for instantaneous efficiency of the active still, which depends on climatic conditions and system performance parameters, was obtained.
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Change history
09 June 2022
A Correction to this paper has been published: https://doi.org/10.1007/s11356-022-21397-2
Notes
Phase change materials
Photovoltaic-thermal
Photovoltaic
Phase change materials
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Parisa Azari: Conceptualization, resources, performing experiments, formal analysis, investigation, data curation, writing original draft, and editing.
Arash Mirabdolah Lavasani: Conceptualization, writing-review and editing, supervision, and project administration.
Nader Rahbar: Conceptualization, writing-review and editing, supervision, and project administration.
Mohammad Eftekhari Yazdi: Supervision and project administration.
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Highlights
1. Freshwater production enhanced by integrating a V-groove solar air collector into solar still.
2. The proficiency of the active solar still was experimentally compared with the passive one.
3. An improvement of 170% in distilled water was achieved for the active solar still.
4. The CPL value for the active solar still was 33% lower than passive one.
5. The exergoeconomic parameters based on energy and exergy for active solar still has been found to be 7.8 and 0.79kWh/$, respectively, at 20% rate of interest.
6. The active solar still mitigated Co2 emission more than the passive one.
7. Characteristic equations of the active solar still were extracted to predict the daily yield, efficiency, andCo2 mitigation.
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Azari, P., Mirabdolah Lavasani, A., Rahbar, N. et al. Performance enhancement of a solar still using a V-groove solar air collector—experimental study with energy, exergy, enviroeconomic, and exergoeconomic analysis. Environ Sci Pollut Res 28, 65525–65548 (2021). https://doi.org/10.1007/s11356-021-15290-7
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DOI: https://doi.org/10.1007/s11356-021-15290-7