A Nonlinear Dynamic Model of a Once-Through Subcritical Steam Generator
- 1 September 1976
- journal article
- Published by ASME International in Journal of Dynamic Systems, Measurement, and Control
- Vol. 98 (3) , 332-339
- https://doi.org/10.1115/1.3427046
Abstract
A dynamic thermal-hydraulic model of a once-through subcritical steam generator is presented which allows the investigation of power plant system transients. The three-section (economizer, evaporator, and superheater) model with time-varying phase boundaries is described by a set of nonlinear differential and algebraic equations derived from the fundamental equations of conservation of mass, momentum, and energy. The transient response of 8 process variables, due to 5 percent independent step disturbances in 5 input variables at 100 percent load, is discussed.Keywords
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