Abstract

CALLE SIGUENCIA., John  and  TINOCO GOMEZ, Óscar. Obtaining of sanitary hot water with solar energy in the canton cuenca and analysis of environmental pollution. Ingenius [online]. 2018, n.19, pp.89-101. ISSN 1390-860X.  https://doi.org/10.17163/ings.n19.2018.09.

This document contains the analysis to determine the feasibility of implementing solar water heaters to obtain Sanitary Hot Water (SHW) in Ecuador, in the province of Azuay, in the canton of Cuenca, in order to reduce environmental pollution caused by the use of fossil fuels. The project considers the implementation of a meteorological network and data collection of global solar radiation in 16 points located populated areas of the Canton during the years 2014 and 2015, later through a field work a diagnosis is made to establish which are the systems Currently used to obtain SHW, the efficiencies of two types of solar vacuum tube heaters for SHW production are also analyzed theoretically and practically; with the measured radiation data, it is modeled applying the heat transfer equations and the feasibility of implementation is established based on the measured solar energy; Finally, a comparison is made to determine what would be the decrease of CO2 emissions if the implementation would be carried out. The results obtained indicate that 82% of families use SHW and of these 65% use LPG-based systems and that 44% of the energy demand to obtain SHW can be covered with solar energy, using auxiliary systems to guarantee a constant supply. The implementation of these systems would reduce 108537 tn CO2 eq per year.

Keywords : Solar heater; environmental pollution; solar energy; vacuum tubes.

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