Sistema Automático de Recirculación de Agua Potable para su Aplicación en Instalaciones de Agua Caliente Sanitaria = Automatic Drinking Water Recirculation System for Application in Sanitary Hot Water Installations
DOI:
https://doi.org/10.20868/ade.2020.4458Keywords:
Instalaciones, Agua Caliente Sanitaria (ACS), sistemas de recirculación, consumo energético, Installations, Sanitary Hot Water (SHW), recirculation systems, energy consumptionAbstract
Diariamente se desperdicia una gran cantidad de agua potable al demandar agua caliente sanitaria en los distintos aparatos sanitarios de las viviendas. A este desperdicio de agua se suma a su vez un elevado consumo energético ocasionado al calentar el agua hasta la temperatura deseada. En este trabajo se ha desarrollado un nuevo sistema automático que interconecta los circuitos de agua fría y agua caliente, de manera que, al demandar esta última el sistema hace que recircule el agua fría contenida en la tubería de agua caliente y la suministrada por la caldera hasta que la temperatura del agua caliente alcanza un determinado valor de consigna de forma automática. Con esto se consigue evitar gran parte del derroche de agua potable y energía que, sistemáticamente, se produce en la actualidad. Además, se han llevado a cabo unas simulaciones sobre el consumo de agua en la Comunidad de Madrid, y se ha cuantificado el ahorro y la amortización que se consiguen empleando el sistema automático de recirculación desarrollado.
Abstract
Everyday a large quantity of drinking water is wasted by requesting sanitary hot water in the various sanitary devices in the homes. In addition to this waste of water, there is also a high energy consumption caused by heating the water until to the desired temperature. In this work, a new automatic system has been developed that interconnects the cold water and hot water circuits, so that when the latter is demanded, the system causes the cold water contained in the hot water pipe and the one supplied by the boiler to be recirculated until the hot water temperature reaches a certain setpoint automatically. With this, it is possible to avoid a large part of the waste of drinking water and energy that systematically occurs today. In addition, simulations have been carried out on water consumption in the Comunidad of Madrid, and the savings and amortization achieved using the automatic recirculation system developed have been quantified.
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