研究目的
Investigating the performance of a photovoltaic thermal (PV/T) stepped solar still with a bottom channel to enhance heat transfer and improve freshwater productivity.
研究成果
The introduction of a bottom channel in the stepped PV/T solar still significantly improves heat transfer, temperatures of components, and freshwater productivity. The optimal depth for the bottom channel is around 0.01 m, enhancing thermal and exergy efficiencies. However, increasing the depth beyond this optimal value decreases freshwater productivity.
研究不足
The study is based on a theoretical model validated by experimental data, which may not capture all real-world variables. The optimal depth of the bottom channel is around 0.01 m, beyond which freshwater productivity decreases.
1：Experimental Design and Method Selection:
A theoretical model was established and validated by existing experimental data for energy and exergy analysis.
2：Sample Selection and Data Sources:
The study utilized structural parameters from previous research for validation.
3：List of Experimental Equipment and Materials:
Parameters such as areas, heat capacities, and mass of components were defined based on previous studies.
4：Experimental Procedures and Operational Workflow:
The model analyzed the effects of bottom channel depth on thermal and exergy performance, and freshwater productivity.
5：Data Analysis Methods:
The study compared the performance indicators (temperatures, heat transfer coefficients, efficiencies) between conventional and modified solar stills.
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