Abstract

MOREANO, Gabriel V.; ARREGUI, César D.; TENESACA, Camilo G.  and  PILCO, Henry J.. Rendimiento y eficiencia de distintas técnicas de control en un calefón eléctrico. Ingenius [online]. 2019, n.22, pp.90-99. ISSN 1390-860X.

Water heating in the Ecuadorian residential sector has become a space for research and development, due to the attempt to mitigate the current spending of people and at the same time contribute actively to the energy efficiency processes that are gaining strength in the country. This document shows a comparative analysis between different ways of controlling the water temperature for a residential system using an electric heater; the response of a direct phase control AC / AC converter was analyzed, which allows to delay the firing angle of the AC wave and the response of the ON / OFF control that activates or deactivates the heater during a pre-established number of half-cycles of current alternating, for the tests a prototype of electric heater was implemented with a coil of 14 meters based on electrical resistances, with the temperature responses that are generated from each converter, we proceeded to identify the transfer function of each system since both differ in its heat transmission technique and at the same time in its mathematical model, a PID controller was then tuned for each system, obtaining good results of temperature response in both cases but only one was efficient in energy saving.

Keywords : control; PID; AC; AC converters; temperature; water; efficiency.

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