Effects of dissimilarity of water depth on energy and exergy efficiencies and productivity of single slope solar still coupled to evacuated tubular collectors

This research work investigates the effect of variation of water depth in the basin on energy and exergy efficiencies and productivity of solar still of single slope type coupled to a number (N) of identical evacuated tubular collectors in series arrangement. The analysis has been done for archetypal days of June and January for the complex climate of New Delhi using computer codes written in MATLAB-2015a. The relevant data have been accessed from Indian Meteorological Department located at Pune in India. The optimum values of water depth for average daily efficiencies and productivity have been estimated to be, respectively, 0.56 and 0.42 m.