Abstract
A method is proposed for linearizing the nonlinear model of a heat-transfer facility the state variables of which at equilibrium points are determined by numerically solving the initial bilinear system of differential equations for a stationary position of the control valve equipped with a constant-speed electric drive. The considerable transport time delay resulting from the distributed design of the heat-transfer system secondary circuit is approximated by a limited number of first-order inertial sections for obtaining a mathematical model in the Cauchy form. The proposed linearization method is tested on an operating hot-water supply heat-transfer system, and the study results are presented in the form of transient curves.
| Original language | English |
|---|---|
| Pages (from-to) | 741-746 |
| Number of pages | 6 |
| Journal | Thermal Engineering (English translation of Teploenergetika) |
| Volume | 61 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 1 Oct 2014 |
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Keywords
- heat-transfer systems
- linearization of nonlinear models
- three-position relay control
- transport time delay
ASJC Scopus subject areas
- Nuclear Energy and Engineering
- Energy Engineering and Power Technology