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Life Cycle Energy Cost Assessment for Pump Units with Various Types of Line-Start Operating Motors Including Cable Losses

Author

Listed:
  • Vadim Kazakbaev

    (Department of Electrical Engineering and Electric Technology Systems, Ural Federal University, Ekaterinburg 620002, Russia)

  • Vladimir Prakht

    (Department of Electrical Engineering and Electric Technology Systems, Ural Federal University, Ekaterinburg 620002, Russia)

  • Vladimir Dmitrievskii

    (Department of Electrical Engineering and Electric Technology Systems, Ural Federal University, Ekaterinburg 620002, Russia)

  • Safarbek Oshurbekov

    (Department of Electrical Engineering and Electric Technology Systems, Ural Federal University, Ekaterinburg 620002, Russia)

  • Dmitry Golovanov

    (Department of Electrical Engineering, University of Nottingham, Nottingham NG7 2RD, UK)

Abstract

The paper presents a comparative analysis of life-cycle energy consumption for three different types of 4 kW line-start motors used in a pump unit with throttling: the most widely used induction motor with IE3 efficiency class, line start permanent magnet synchronous motor with IE4 efficiency class and line start synchronous reluctance motor with IE4 efficiency class. The operating cycle for pump units with constant flow is considered for the above-mentioned types of motors taking into account not only the losses in the pump and motor, but also in the power supply cable. It is shown that the line start synchronous reluctance motor without magnets has the highest efficiency over the entire considered loading range. However, its power factor is lower than that of the synchronous motor with magnets and therefore it has more significant losses in power supply cable. Despite this disadvantage, the line-start reluctance motor is a good alternative to widespread induction motor since it allows saving of approximately 4000 euro more than the latter during the 20 years life cycle. It also provides similar savings in comparison to the permanent magnet synchronous motor, but unlike it, it does not have costly rare-earth materials in the rotor.

Suggested Citation

  • Vadim Kazakbaev & Vladimir Prakht & Vladimir Dmitrievskii & Safarbek Oshurbekov & Dmitry Golovanov, 2020. "Life Cycle Energy Cost Assessment for Pump Units with Various Types of Line-Start Operating Motors Including Cable Losses," Energies, MDPI, vol. 13(14), pages 1-15, July.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:14:p:3546-:d:382633
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    References listed on IDEAS

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    1. Sungkyun Ha & Sungho Tae & Rakhyun Kim, 2019. "A Study on the Limitations of South Korea’s National Roadmap for Greenhouse Gas Reduction by 2030 and Suggestions for Improvement," Sustainability, MDPI, vol. 11(14), pages 1-18, July.
    2. Arun Shankar, Vishnu Kalaiselvan & Umashankar, Subramaniam & Paramasivam, Shanmugam & Hanigovszki, Norbert, 2016. "A comprehensive review on energy efficiency enhancement initiatives in centrifugal pumping system," Applied Energy, Elsevier, vol. 181(C), pages 495-513.
    3. Vadim Kazakbaev & Vladimir Prakht & Vladimir Dmitrievskii & Mohamed N. Ibrahim & Safarbek Oshurbekov & Sergey Sarapulov, 2019. "Efficiency Analysis of Low Electric Power Drives Employing Induction and Synchronous Reluctance Motors in Pump Applications," Energies, MDPI, vol. 12(6), pages 1-23, March.
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    Cited by:

    1. Vladimir Prakht & Mohamed N. Ibrahim & Vadim Kazakbaev, 2023. "Energy Efficiency Improvement of Electric Machines without Rare-Earth Magnets," Energies, MDPI, vol. 16(8), pages 1-3, April.
    2. Vadim Kazakbaev & Safarbek Oshurbekov & Vladimir Prakht & Vladimir Dmitrievskii, 2021. "Feasibility Study of Direct-on-Line Energy-Efficient Motors in a Pumping Unit, Considering Reactive Power Compensation," Mathematics, MDPI, vol. 9(18), pages 1-15, September.
    3. Danilo Ferreira de Souza & Emeli Lalesca Aparecida da Guarda & Ildo Luis Sauer & Hédio Tatizawa, 2021. "Energy Efficiency Indicators for Water Pumping Systems in Multifamily Buildings," Energies, MDPI, vol. 14(21), pages 1-13, November.
    4. Hyunwoo Kim & Yeji Park & Seung-Taek Oh & Hyungkwan Jang & Sung-Hong Won & Yon-Do Chun & Ju Lee, 2020. "A Study on the Rotor Design of Line Start Synchronous Reluctance Motor for IE4 Efficiency and Improving Power Factor," Energies, MDPI, vol. 13(21), pages 1-15, November.

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