On the Improvement in the Suction Performance of High-Head Axial-Flow Pumps

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概要

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• The optimum diameter of axial-flow pumps has been theoretically studied taking the suction performance into consideration. Two high-head axial-flow pumps, composed of two tandem impellers, were tested to study their characteristic performances and suction performances. The main results of the study are as follows. The optimum flow coefficient decreases with the cavitation coefficient of the blade section. The pump, which demonstrates better suction performance and efficiency, consists of a lightly loaded 1st stage impeller with high stagger angle and a heavily loaded 2nd stage impeller of somewhat larger flow coefficient.

• 一般社団法人日本機械学会の論文

著者

• Kasai Taijiro

  Kyusyu Institute Of Technology.

• Kunikiyo Yukio

  Kitakyusyu Technical College.

• Kunikiyo Yukio

  Kitakyushu Technology College

• MATSUNAGA Sigenori

  Kyusyu Institute of Technology.

• ISIBASI Haruo

  Kitakyusyu Technical College.

• KASAI Taijiro

  Sasebo Technical College.

• MATSUNAGA Sigenori

  Kyushu Institute of Technology

関連論文

• A Simple Method to Estimate Blade Surface Pressure in Axial-Flow Turbomachines and Its Application
• Performance Characteristics and Cavitation Conditions of Three Axial-Flow Pump Impellers
• On the Improvement in the Suction Performance of High-Head Axial-Flow Pumps
• A Measuring Method of Three-Dimensionaly Fluctuating Liquid Flows : Part 3,An Application of the Method to Determing the Velocity Distribution over the Discharge Area of an Axial-Flow Pump Impeller

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