Controlling Pulsed Incompressible Flow
Publication: Journal of Energy Engineering
Volume 118, Issue 1
Abstract
Unit operations continue to be evolved for the production of fuel from waste. One such device, the active pulsed‐flow air classifier, called for the design of a valve to pulse the airflow. This valve had to be capable of pulsing airflow at frequencies ranging from 0.5–5 Hz; approximating a sawtooth waveform; inducing and varying pulse asymmetry; working in incompressible flow; handling large flow volumes; posing minimal obstruction to the airflow when fully open; closing to varying degrees; and consuming a minimum of power. This work discusses the development of testing of three configurations. Design of the valve elements most affected by special operational requirements is discussed. Techniques of analysis are presented. The louvered valve is identified as the best valve; its design equations are developed. The best control system was electropneumatic. It was geographically impossible to combine the two, although they are forecast to make up the best system.
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Information & Authors
Information
Published In
Journal of Energy Engineering
Volume 118 • Issue 1 • April 1992
Pages: 1 - 17
Copyright
Copyright © 1992 ASCE.
History
Published online: Apr 1, 1992
Published in print: Apr 1992
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