Підвищення енергоефективності котельні шляхом впровадження частотного регулювання вентиляторів та насосів

Abstract

The paper investigates measures to improve the energy efficiency of a boiler plant at the municipal enterprise "Vinnytsiaoблтеплоенерго." A frequency control system for boiler fans based on variable frequency drives and a programmable logic controller is proposed. The daily and annual electrical energy savings are calculated at 10.65 kWh/day and 2,788.35 kWh/year respectively. The payback period of the system is 1.8–2.4 years depending on the number of variable frequency drives installed. Additionally, a cascade control system for a group of distribution pumps with frequency regulation of the lead unit is proposed, with an estimated energy savings potential of 20–30% of the annual electricity consumption of the pump group.