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RESEARCH PAPERS: Papers in Thermofluid Area

Dynamic Modeling and Simulation of Gaseous Systems

[+] Author and Article Information
S. Z. Wu, D. N. Wormley, D. Rowell, H. M. Paynter

Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Mass. 02139

J. Dyn. Sys., Meas., Control 107(4), 262-266 (Dec 01, 1985) (5 pages) doi:10.1115/1.3140733 History: Received December 01, 1984; Online July 21, 2009

Abstract

A general computer-based mathematical modeling system for analyzing air/gas system dynamics has been developed. A set of generic lumped and distributed elements are interconnected by generalized junction structures to represent system configurations. The dynamic response of pressure, flow, temperature, and heat transfer rate at any point in a system, due to control actions, or fluid, thermal, or mechanical disturbances can be determined. The model has been used to analyze furnace implosion and disturbance propagation problems in fossil fuel power plants. To illustrate the modeling techniques, a model of a coal-fired plant has been constructed and pressure transients computed following a fuel trip. The model simulation predictions of the furnace pressure excursions are in close agreement with the data from field tests.

Copyright © 1985 by ASME
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