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Transport Efficiency of a Homogeneous Gaseous Substance in the Presence of Positive and Negative Gaseous Sources of Mass and Momentum

Author

Listed:
  • Bogusław Ptaszyński

    (Faculty of Civil Engineering and Resource Management, AGH University of Science and Technology, 30-059 Krakow, Poland
    Retired employee.)

  • Zbigniew Kuczera

    (Faculty of Civil Engineering and Resource Management, AGH University of Science and Technology, 30-059 Krakow, Poland)

  • Piotr Życzkowski

    (Faculty of Civil Engineering and Resource Management, AGH University of Science and Technology, 30-059 Krakow, Poland)

  • Rafał Łuczak

    (Faculty of Civil Engineering and Resource Management, AGH University of Science and Technology, 30-059 Krakow, Poland)

Abstract

In this article, a theoretical mathematical model of gas flow through a duct in the case of local mass and momentum sources and sinks is presented. The continuity equation and motion equation with one-dimensional, density-stable gas flows were used to create this model. The size of sources and sinks and their locations have an effect on the size of gas stream flows in the duct, gas energy losses, and the parameters of the mechanical source energy that is causing the flow. In the traditional approach to describing the gas flow in the duct, the concept of resistivity and the equivalent resistance of the conduit is used. In the case of flow in the duct with local mass and momentum sources and sinks, the transport resistance depends on a bigger number of parameters than the concept of specific resistance usage. The location and size of the source flux or mass and momentum sinks and the fan work (suction, blowing) were taken into account in the presented model. The model gives the opportunity to determine the mechanical energy losses and efficiency of gas transport in the duct.

Suggested Citation

  • Bogusław Ptaszyński & Zbigniew Kuczera & Piotr Życzkowski & Rafał Łuczak, 2022. "Transport Efficiency of a Homogeneous Gaseous Substance in the Presence of Positive and Negative Gaseous Sources of Mass and Momentum," Energies, MDPI, vol. 15(17), pages 1-11, September.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:17:p:6376-:d:903647
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    References listed on IDEAS

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    1. Wacław Dziurzyński & Andrzej Krach & Teresa Pałka, 2017. "Airflow Sensitivity Assessment Based on Underground Mine Ventilation Systems Modeling," Energies, MDPI, vol. 10(10), pages 1-15, September.
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    Cited by:

    1. Bogusław Ptaszyński & Rafał Łuczak & Zbigniew Kuczera & Piotr Życzkowski, 2022. "Influence of Local Gas Sources with Variable Density and Momentum on the Flow of the Medium in the Conduit," Energies, MDPI, vol. 15(16), pages 1-14, August.

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