MODEL-BASED EXPANSION CONTROL OF OPERATING CONDITIONS OF EXPANSION MACHINE

摘要

FIELD: physics.;SUBSTANCE: invention relates to a method of controlling a device operating based on a thermodynamic cyclic process, in particular a device operating on the basis of a Rankine organic cycle, which comprises an evaporator, an expansion machine, a condenser and a feed pump, wherein expansion machine is connected to external device in normal operation mode, and the method includes the following steps: measuring the pressure of the exhaust steam downstream of the expansion machine and setting the volume flow rate of the feed pump in accordance with the computerized control model of the device operating based on the thermodynamic cyclic process, in accordance with the measured pressure of the exhaust steam and the target speed of the expansion machine as input variables of the control model, and with the volume flow rate of the feed pump as the output variable of the control model. Invention also relates to corresponding device based on thermodynamic cyclic process.;EFFECT: invention-based control of the operating state of the expansion machine is disclosed.;15 cl, 5 dwg