CALENTADOR DE AGUA SOLAR DE BAJO COSTO CON CIRCULACIÓN FORZADA AUTÓNOMA.

DI LALLA, NICOLÁS; HERNANDEZ ALEJANDRO; DÍAZ ANDRÉS

Ciências Socialmente Aplicáveis: Integrando Saberes e Abrindo Caminhos

Editora Artemis

Lugar: Curitiva; Año: 2023; p. 180 - 192

ABSTRACT: The design of a low-cost solar water heater that operates by autonomousforced recirculation is presented. Recirculation is obtained through the application of a 5W and 12 V mini pump, powered by a 10 W photovoltaic panel. Thus achieving a simple,effective and economical automation. Cheap and easily accessible materials were thoughtof for its construction, with the idea of promoting self-construction. The objective was todesign a solar water heater capable of delivering 110 liters of water a day at least 50°C incold days, satisfying the demand for domestic hot water in a single-family home. Also, thatyour thermal accumulation tank is capable of keeping the water hot at night. The collectorabsorber was made with a 100-meter spiral of low-density polyethylene hose covering anarea of 2m x 2m. The thermal accumulation tank for hot water has a capacity of 110 liters,made entirely of plastic. A prototype was thermally tested in winter in order to verify itsefficiency in the worst conditions. The design of the insulation of the thermal accumulationtank was evaluated, proposing the strategy of its location inside the house (bathroom orkitchen) in order to reduce nocturnal heat losses. The massive application of this newconcept of solar water heater can be an alternative for obtaining sanitary hot water indeveloping countries, reducing the burning of fossil fuels, preserving the environment.