期刊
SOLAR ENERGY
卷 159, 期 -, 页码 820-833出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2017.11.050
关键词
Solar stills; Fuzzy AHP DEA; Relative efficiency; MCDM
资金
- DST
- British Council under UKIERI project funding scheme [DST/INT/UK/P-86/2014, UKIERI-DST-2014-15-03]
- Maulana Azad National Fellowship (MANF) by the University Grants Commission (UGC), New Delhi
- NET-JRF program by the University Grants Commission (UGC), New Delhi
Desalination using solar stills is an ancient economic method for water desalination. Over the years, research and development in the area of solar still has resulted in increased distillate yield by means of integration of PCM (phase change material), photo-voltaic thermal (PVT), etc with the still. Nano-PCM is an upcoming technology which modifies the thermal performance of PCM. The aim of this research is to analyze the efficiency of 20 solar stills including nano-PCM based solar stills considering various input and output criteria using integrated fuzzy analytical hierarchy process (AHP) and data envelopment analysis (DEA). The efficiency derived here is relative with regard to the parameters and stills considered in this study. The result infers that, even though the productivity of stepped solar still with sun tracking system was high, but when techno-economic aspects were considered it is not among the top solar stills. The analysis indicated pyramid type solar still, single slope solar still with PVT, solar still with NPCM (paraffin + copper oxide), solar still with NPCM (paraffin + titanium dioxide) and solar still with PCM (paraffin) occupies the top five positions with relative efficiency of 100, 100, 88.47, 88.46 and 76.93% respectively.
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