Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/111778
Title: Analysis of the Payback Period of a Modernized Pump Unit with Induction Electric Motors of Advanced Energy Efficiency Classes
Authors: Goman, V. V.
Prakht, V. A.
Kazakbaev, V. M.
Dmitrievskii, V. A.
Valeev, E. A.
Paramonov, A. S.
Issue Date: 2021
Publisher: National Technical University "Kharkiv Polytechnic Institute"
National Technical University Kharkiv Polytechnic Institute
Citation: Analysis of the Payback Period of a Modernized Pump Unit with Induction Electric Motors of Advanced Energy Efficiency Classes / V. V. Goman, V. A. Prakht, V. M. Kazakbaev et al. // Electrical Engineering and Electromechanics. — 2021. — Vol. — Iss. 1. — P. 15-19.
Abstract: Aim. The comparative analysis of energy consumption, electricity costs during lifetime cycle and payback period of a pump unit with 90 kW 2-pole induction motors, belonging to various energy efficiency classes, feeding directly from power grid. Methods. The examined operating modes aligned with a typical operating cycle of a pump unit with approximately constant flow rate of 75-110 % of the rated flow. The calculations were based on the pump and induction motors nameplate data, which, in their turn, were based on the manufacturers’ experimental data. Results. The calculations of energy consumption, electricity costs and payback periods of a pump unit with 90 kW 2-pole induction motors, feeding directly from power grid have been performed in the article. The application of induction motors belonging to IE2, IE3 and IE4 energy efficiency classes has been discussed. Practical value. It has been demonstrated, than in case of replacement of an induction motor of energy efficiency class IE2 due to planned retrofit, 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. © 2021, National Technical University "Kharkiv Polytechnic Institute". All rights reserved.
Keywords: CENTRIFUGAL PUMP
ENERGY EFFICIENCY
ENERGY EFFICIENCY CLASS
ENERGY SAVING
INDUCTION MOTOR
LIFETIME CYCLE
PAYBACK PERIOD
THROTTLING CONTROL
URI: http://hdl.handle.net/10995/111778
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85120782417
PURE ID: 21045700
ISSN: 2074-272X
metadata.dc.description.sponsorship: Acknowledgment. The work was partially supported by the Ministry of Science and Higher Education of the Russian Federation (through the basic part of the government mandate, Project No. FEUZ-2020-0060).
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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