Heating Sources Switching System

Abstract

This paper presents a system for automatic switching between thermal sources—a gas boiler, a heating pump and solar thermal collectors—in order to reduce the gas consumption in the ICDT Pro-DD Research Institute of Transilvania University of Brasov. An algorithm was devised and a software product developed that, by monitoring several temperatures collected from the sensors in the system, allows maximum use of the energy from the heating pump, achieving a high degree of economy of classic fuel (gas). The paper includes a synthesis of data collected from the gas boiler (temperatures and modulation), useful for designing the algorithm governing the switching between heating sources, temperatures from the solar thermal collectors (for the behavioural study of this type of heating source in the region of Brasov) and the electric energy consumption.