Analysis of the payback period of a modernized pump unit with induction electric motors of advanced energy efficiency classes

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 ty...

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Autores principales:	V.V. Goman, V.A. Prakht, V.M. Kazakbaev, V.A. Dmitrievskii, E.A. Valeev, A.S. Paramonov
Formato:	article
Lenguaje:	EN RU UK
Publicado:	National Technical University "Kharkiv Polytechnic Institute" 2021
Materias:	centrifugal pump energy efficiency energy efficiency class induction motor throttling control energy saving payback period lifetime cycle Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/396fff5b8cf0424a827f8fde6ecab67a
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spelling	oai:doaj.org-article:396fff5b8cf0424a827f8fde6ecab67a2021-12-02T18:42:19ZAnalysis of the payback period of a modernized pump unit with induction electric motors of advanced energy efficiency classes10.20998/2074-272X.2021.1.032074-272X2309-3404https://doaj.org/article/396fff5b8cf0424a827f8fde6ecab67a2021-02-01T00:00:00Zhttp://eie.khpi.edu.ua/article/view/225156/225151https://doaj.org/toc/2074-272Xhttps://doaj.org/toc/2309-3404Aim. 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.V.V. GomanV.A. PrakhtV.M. KazakbaevV.A. DmitrievskiiE.A. ValeevA.S. ParamonovNational Technical University "Kharkiv Polytechnic Institute"articlecentrifugal pumpenergy efficiencyenergy efficiency classinduction motorthrottling controlenergy savingpayback periodlifetime cycleElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENRUUKElectrical engineering & Electromechanics, Iss 1, Pp 15-19 (2021)
institution	DOAJ
collection	DOAJ
language	EN RU UK
topic	centrifugal pump energy efficiency energy efficiency class induction motor throttling control energy saving payback period lifetime cycle Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	centrifugal pump energy efficiency energy efficiency class induction motor throttling control energy saving payback period lifetime cycle Electrical engineering. Electronics. Nuclear engineering TK1-9971 V.V. Goman V.A. Prakht V.M. Kazakbaev V.A. Dmitrievskii E.A. Valeev A.S. Paramonov Analysis of the payback period of a modernized pump unit with induction electric motors of advanced energy efficiency classes
description	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.
format	article
author	V.V. Goman V.A. Prakht V.M. Kazakbaev V.A. Dmitrievskii E.A. Valeev A.S. Paramonov
author_facet	V.V. Goman V.A. Prakht V.M. Kazakbaev V.A. Dmitrievskii E.A. Valeev A.S. Paramonov
author_sort	V.V. Goman
title	Analysis of the payback period of a modernized pump unit with induction electric motors of advanced energy efficiency classes
title_short	Analysis of the payback period of a modernized pump unit with induction electric motors of advanced energy efficiency classes
title_full	Analysis of the payback period of a modernized pump unit with induction electric motors of advanced energy efficiency classes
title_fullStr	Analysis of the payback period of a modernized pump unit with induction electric motors of advanced energy efficiency classes
title_full_unstemmed	Analysis of the payback period of a modernized pump unit with induction electric motors of advanced energy efficiency classes
title_sort	analysis of the payback period of a modernized pump unit with induction electric motors of advanced energy efficiency classes
publisher	National Technical University "Kharkiv Polytechnic Institute"
publishDate	2021
url	https://doaj.org/article/396fff5b8cf0424a827f8fde6ecab67a
work_keys_str_mv	AT vvgoman analysisofthepaybackperiodofamodernizedpumpunitwithinductionelectricmotorsofadvancedenergyefficiencyclasses AT vaprakht analysisofthepaybackperiodofamodernizedpumpunitwithinductionelectricmotorsofadvancedenergyefficiencyclasses AT vmkazakbaev analysisofthepaybackperiodofamodernizedpumpunitwithinductionelectricmotorsofadvancedenergyefficiencyclasses AT vadmitrievskii analysisofthepaybackperiodofamodernizedpumpunitwithinductionelectricmotorsofadvancedenergyefficiencyclasses AT eavaleev analysisofthepaybackperiodofamodernizedpumpunitwithinductionelectricmotorsofadvancedenergyefficiencyclasses AT asparamonov analysisofthepaybackperiodofamodernizedpumpunitwithinductionelectricmotorsofadvancedenergyefficiencyclasses
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Analysis of the payback period of a modernized pump unit with induction electric motors of advanced energy efficiency classes

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