Abstract
In this paper, the economics analysis of water production by using different solid desiccant materials and composite materials through Scheffler reflector is presented. The experiments for water production have been performed at National Institute of Technology, Kurukshetra, Haryana, India [29°58′ (latitude) North and 76°53′ (longitude) East]. The various factors have been carried out to calculate the annual cost/liter in Indian currency. Total six cases are studied, and for each case, uniform procedure is adopted. The silica gel gives the best economical annual cost/liter compared to molecular sieve and activated alumina in case of solid desiccant, and for composite material, it is CaCl2/River Sand compared to LiCl/River Sand and LiBr/River sand.
Highlights
Water is the prime element to sustain life on earth, but day by day, water crises have become increased
Two types of composite desiccant materials, i.e., cloth/CaCl2 and sand/CaCl2, were used for water production from atmospheric air using solar energy and water collected during the experiments were 2.32 and 1.23 silt/days m2, respectively
From the above discussion and economic analysis of water production by different solid and composite desiccant materials through Scheffler reflector, the following outcomes could be drawn: 1. The maximum quantity of water and the lowest annual cost per liter are 155 ml/day and Rs. 25.70, respectively, by silica gel compared to molecular sieve and activated alumina
Summary
Water is the prime element to sustain life on earth, but day by day, water crises have become increased. Gordeeva et al (1998) used new composite desiccant materials called selective water sorbent in this field They performed their experiments in Boreskov Institute of catalysis, Novosibirsk, Russia, and the water collected from the system was 3–5 tones per day from 10 ton of dry sorbents. Two types of composite desiccant materials, i.e., cloth/CaCl2 and sand/CaCl2, were used for water production from atmospheric air using solar energy and water collected during the experiments were 2.32 and 1.23 silt/days m2, respectively. Kumar and Yadav (2015) performed experiments on solar glass desiccant box system using saw wood impregnated with different concentrations of CaCl2. Talaat et al (2018) used cloth layer impregnated with C aCl2 solution to extract water vapors from atmospheric air by solar-powered portable apparatus. Author first performed experiments at different days of months and produced water and after that economic analysis was carried out
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