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<p>This research paper is the first experimental study of a pitot tube pump for use in rotating heat and mass transfer devices (rotating packed beds, spinning disc reactors and others). Such pitot-tube pumps operate with a rotor partially filled with liquid and without amplifier blades. The frequency of rotation of the liquid was measured using: 1) stroboscopic lighting; 2) piezometric tubes rotating together with the pump rotor; 3) indicator floats. The maximum radius of the pitot tube installation was 74.5 mm, with a rotor rotation frequency of up to 1500 rpm. Partial filling of the rotor leads to a decrease in static pressure, and the absence of blades significantly reduces the fluid slip coefficient compared to traditional pitot tube pumps. The pump pressure with a partially filled rotor is only about 20 % of the maximum theoretical value. The research results are summarized by dependencies suitable for engineering calculations.</p>

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Pitot-tube jet pump with a partially liquid-filled rotor

  • 期刊论文

  • 发表日期：

    2025年10月9日

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  • Andrii Solomakha,
  • Petro Barabash,
  • Volodymyr Rifert,
  • Valerii Petrenko

摘要

This research paper is the first experimental study of a pitot tube pump for use in rotating heat and mass transfer devices (rotating packed beds, spinning disc reactors and others). Such pitot-tube pumps operate with a rotor partially filled with liquid and without amplifier blades. The frequency of rotation of the liquid was measured using: 1) stroboscopic lighting; 2) piezometric tubes rotating together with the pump rotor; 3) indicator floats. The maximum radius of the pitot tube installation was 74.5 mm, with a rotor rotation frequency of up to 1500 rpm. Partial filling of the rotor leads to a decrease in static pressure, and the absence of blades significantly reduces the fluid slip coefficient compared to traditional pitot tube pumps. The pump pressure with a partially filled rotor is only about 20 % of the maximum theoretical value. The research results are summarized by dependencies suitable for engineering calculations.