Analytical characteristic equation of N identical evacuated tubular collectors integrated single slope solar still

摘要

In this paper, analytical expression for characteristic equation of single slope solar still included with series connected N identical evacuated tubular collectors (N-ETC-SS) has been developed. The derivation is based on fundamental energy balance equations for various components of the proposed system. The analytical result of the proposed N-ETC-SS has been compared with results reported by earlier researchers for the same basin area under similar climatic condition. The analysis has been done for a typical day in the month of June for climatic condition of New Delhi at 0.14 m water depth under optimized condition. It has been concluded that daily energy efficiency is higher by 22.65% and 55.63% for N-ETC-SS than N identical partially covered photovoltaic thermal (PVT) compound parabolic concentrator collectors integrated single slope solar still and conventional single slope solar still respectively. Moreover, daily yield, exergy, energy and exergy efficiency have been computed.