Performance of Air-Lift Pump

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概要

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• A basic equation of air-lift pump performance is derived from a simple momentum equation. In the analysis, frictional pressure drop in two-phase flow is expressed by means of liquid volume fraction of the mixture, and slug flow is assumed in order to obtain the relationship between liquid volume fraction and flow rates of both phases. The results predicted by the analysis are compared with experimental data of other investigators as well as of the authors. Good agreement with experimental data is shown in the ranges of 25 mm≦D (inner diameter)≦100 mm, 4 m≦L (length of pipe)≦42 m and 0.4<σ (submergence ratio)<0.8. To give a clear explanation for pump characteristics, the efficiency of air-lift pump is subdivided into two components, the pipe efficiency and the ideal discharge efficiency. A procedure of a pump design is proposed.

• 一般社団法人日本機械学会の論文

著者

• Honda Toru

  Faculty Of Engineering University Of Kumamoto

• Sato Yoshifusa

  Faculty Of Engineering Kumamoto Univ.

• TODOROKI Ichiro

  Ariake Technical College

関連論文

• Momentum and Heat Transfer in Two-Phase Bubble Flow in Concentric Annuli
• Flow Distribution and Pressure Drop for Parallel Flow
• Two-Phase Flow Characteristics in the Disturbed Flow Region after Mixing Air and Water
• Forced Convective Heat Transfer in Vertical Air-water Bubble Flow
• Performance of Air-Lift Pump

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