engleski

Design of heat exchanger control system by simulation

Nonlinear lumped-parameters mathematical model of an oil preheater dynamics (320 MW oil-fired power plant) of 44th order has been derived. Temperature responses to step-changes of the oil flow and of the control valve free area respectively have been obtained numerically by digital computer. Low-order nonlinear model, obtained by curve-fitting, have been patched on an analog computer together with models of the control system components and various schemes have been investigated.

heat exchanger dynamics; control; simulation

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