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Influence of Measurement Methodologies for the Volumetric Air Flow Rate of Mobile Positive Pressure Fans on Drive Unit Performance

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  • Piotr Kaczmarzyk

    (Scientific and Research Centre for Fire Protection, National Research Institute, 05-420 Józefów, Poland
    Institute of Machine Design, Faculty of Mechanical Engineering, Poznań University of Technology, 60-965 Poznań, Poland)

  • Łukasz Warguła

    (Institute of Machine Design, Faculty of Mechanical Engineering, Poznań University of Technology, 60-965 Poznań, Poland)

  • Paweł Janik

    (Scientific and Research Centre for Fire Protection, National Research Institute, 05-420 Józefów, Poland)

  • Piotr Krawiec

    (Institute of Machine Design, Faculty of Mechanical Engineering, Poznań University of Technology, 60-965 Poznań, Poland)

Abstract

Since there are no legally defined testing requirements for mobile positive pressure fans, they may be tested based on methods that do not correspond to their actual operating conditions. Adequate assessment of the technical and operating conditions for this type of equipment is particularly important for equipment used in rescue operations. Such units should be characterized by efficient and reliable operation. This article investigates the influence of measurement methods of the volumetric airflow rate on the performance of a power unit. The article shows that the applied measurement method, whether it is PN-EN ISO 5801 (test conditions in a pipe duct—Method A) or other methods, i.e., ANSI/AMCA 240-15 and testing of the characteristics of the velocity profile (tests in open flow—Method B), can cause differences in the power demand of fans of from 3.2% to 4.5%. The differences in the requirements of propulsion power translate into fuel consumption and emissions of harmful exhaust gases generated by the combustion drive units (4 kW). It was also observed that fans with conventional impellers (W1) show a lower power demand when applying Method B (open flow) tests, while fans with turbo impellers (W2) show a lower power demand when Method A (duct) tests are applied. Comparative analysis of the parameters of the drive unit in the test group of fans without taking into account the measurement method can cause errors of up to about 7.7%, 6.4%, and 2.4% for the power, torque, and speed, respectively.

Suggested Citation

  • Piotr Kaczmarzyk & Łukasz Warguła & Paweł Janik & Piotr Krawiec, 2022. "Influence of Measurement Methodologies for the Volumetric Air Flow Rate of Mobile Positive Pressure Fans on Drive Unit Performance," Energies, MDPI, vol. 15(11), pages 1-12, May.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:11:p:3953-:d:825399
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    References listed on IDEAS

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    1. Michalina Kamińska & Łukasz Rymaniak & Piotr Lijewski & Natalia Szymlet & Paweł Daszkiewicz & Rafał Grzeszczyk, 2021. "Investigations of Exhaust Emissions from Rail Machinery during Track Maintenance Operations," Energies, MDPI, vol. 14(11), pages 1-12, May.
    2. Łukasz Warguła & Mateusz Kukla & Piotr Lijewski & Michał Dobrzyński & Filip Markiewicz, 2020. "Impact of Compressed Natural Gas (CNG) Fuel Systems in Small Engine Wood Chippers on Exhaust Emissions and Fuel Consumption," Energies, MDPI, vol. 13(24), pages 1-21, December.
    3. Warguła, Łukasz & Kukla, Mateusz & Wieczorek, Bartosz & Krawiec, Piotr, 2022. "Energy consumption of the wood size reduction processes with employment of a low-power machines with various cutting mechanisms," Renewable Energy, Elsevier, vol. 181(C), pages 630-639.
    4. Mateusz Kukla & Bartosz Wieczorek & Łukasz Warguła & Jan Górecki & Marcin Giedrowicz, 2021. "An Analytical Modelling of Demand for Driving Torque of a Wheelchair with Electromechanical Drive," Energies, MDPI, vol. 14(21), pages 1-20, November.
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    Cited by:

    1. Łukasz Warguła & Piotr Kaczmarzyk & Piotr Lijewski & Paweł Fuć & Filip Markiewicz & Daniel Małozięć & Bartosz Wieczorek, 2023. "Effect of the Volumetric Flow Rate Measurement Methodology of Positive Pressure Ventilators on the Parameters of the Drive Unit," Energies, MDPI, vol. 16(11), pages 1-13, June.
    2. Łukasz Warguła & Piotr Kaczmarzyk, 2022. "Legal Regulations of Restrictions of Air Pollution Made by Mobile Positive Pressure Fans—The Case Study for Europe: A Review," Energies, MDPI, vol. 15(20), pages 1-11, October.

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