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research-article

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

[+] Author and Article Information
Desh Bandhu Singh

Centre for Energy Studies, Indian Institute of Technology Delhi, HausKhas, New Delhi, 110016, India
dbsiit76@gmail.com

GN Tiwari

Bag Energy Research Society, Sodha Bers Complex, Plot No. 51, Mahamana Nagar, Karaudi, Varanasi, Uttar Pradesh, 221005, India
gntiwari@ces.iitd.ernet.in

1Corresponding author.

ASME doi:10.1115/1.4036855 History: Received February 07, 2017; Revised May 01, 2017

Abstract

In this paper, analytical expression for characteristic equation of double slope solar still included with series connected N identical evacuated tubular collectors (N-ETC-DS) 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-DS has been compared with results reported by earlier researchers for the same basin area under similar climatic condition. It has been concluded that daily energy efficiency is higher by 23.90%, 26.45% and 42.65% for N-ETC-DS than N identical partially covered photovoltaic thermal (PVT) compound parabolic concentrator collectors integrated double slope solar still, N identical partially covered PVT flat plate collectors integrated double slope solar still and conventional double slope solar still respectively at 0.14 m water depth under optimized condition. Moreover, daily yield, exergy, energy and exergy efficiency have been computed.

Copyright (c) 2017 by ASME
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