Operation Performance of a Small Air-Lift Pump for Conveying Solid Particles
Author:
Fujimoto Hitoshi1, Ogawa Satoshi2, Takuda Hirohiko1, Hatta Natsuo3
Affiliation:
1. Department of Energy Science and Technology, Graduate School of Energy Science, Kyoto University, Kyoto 606-8501, Japan 2. Graduate Student at Kyoto University (Presently, Toyota Motor Corp.) 3. Department of Civil Engineering, Nippon-Bunri University, Oita, Japan
Abstract
The pump performance of a small air-lift system for conveying solid particles is investigated experimentally. The total length of the vertical lifting pipe is 3200 mm, and the inner diameter of the pipe is 18 mm. The gas injector is set at a certain point of the pipe. The flows in the lifting pipe are water/solid two-phase mixtures below the gas injection point, and air/water/solid three-phase mixtures above it. The time-averaged characteristics of the flows are examined for various experimental conditions. The effects of particle diameter, particle density, the gas-injection point, and the volume flux of air on the pump performance are studied systematically. The critical boundary at which the particles can be lifted is discussed in detail based upon one-dimensional mixture model.
Publisher
ASME International
Subject
Geochemistry and Petrology,Mechanical Engineering,Energy Engineering and Power Technology,Fuel Technology,Renewable Energy, Sustainability and the Environment
Reference14 articles.
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