Анализ срока окупаемости модернизированной насосной установки при использовании асинхронных двигателей повышенных классов энергоэффективности

Abstract

It has been demonstrated, than in case of replacement of an induction motor of energy efficiency class IE2 due to plannedretrofit, payback period for an IE4 induction motor is 2.18 years, energy savings within a calculated 20-year operating period are 268MW·h, which makes €41110 in money terms. Under the same conditions, the replacement of an induction motor of energy efficiency class IE2 with an induction motor of energy efficiency class IE3 will allow to save 88 MW·h within a calculated operating period, which, expressed in monetary terms, is €13500 and the payback period is 5.11 years. Thus, the article proves that despite a higher initial price, the choice of an induction motor of energy efficiency class IE4 tends to be more economically advantageous.