THEORY OF DYNAMIC OPTIMIZATION FOR MATERIALS HEATING PROCESS——CRITERION RESTRAINING METHOD

Acta Metall Sin

1992, Vol. 28

Issue (4): 45-48 DOI:

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THEORY OF DYNAMIC OPTIMIZATION FOR MATERIALS HEATING PROCESS——CRITERION RESTRAINING METHOD

LI Zongrui;LU Zhongwu Northeast University of Technology; Shenyang

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LI Zongrui;LU Zhongwu Northeast University of Technology; Shenyang. THEORY OF DYNAMIC OPTIMIZATION FOR MATERIALS HEATING PROCESS——CRITERION RESTRAINING METHOD. Acta Metall Sin, 1992, 28(4): 45-48.

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Abstract A criterion restraining method adopted to the dynamic optimization for materi-als heating process has been developed, regarding it as controlled object of a regulator in controltheory and combining the optimal criterion of it. The method may be available to optimize fuelsupply along furnace length and to provide a theoretical basis for the optimization of fuel supplyin time-varying. For soaking pit, the calculation shows that in case of optimization by criterionrestraining method, the thermal efficiency is 3.1% higher than the modelling prediction result.In comparison with heat flux-decomposing method, the thermal efficiency increased from 43.1to 43.8%, and the energy consumption was reduced by 7.28% relative to the practical produc-tion data.

Key words: optimization heating process control theory optinal criterion

Received: 18 April 1992

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