Computer modeling of the heat exchange process in the calefacient chamber of the evaporator

A system analysis is considered in the construction of a computer model of processes in the heating chamber of a steam heat exchanger, based on the MATLAB application program, by combining blocks of process models of the quasi-apparatus of the regulatory body, the steam zone, the condensate and the wall. According to the computer model of the dynamics of the heating chamber process, depending on the changes in the input parameters (steam pressure in the heating water supply pipeline, changes in the opening coefficient of the heating water supply valve, the temperature of the heating steam in the heating water supply pipeline, the heat sink from the wall), the computer automatically calculates the values of the heating steam pressure, the flow rate of the heating steam passed through the control valve, the condensation temperature of the heating steam, the wall temperature. Calculations show that with an increase in the pressure in the supply line of heating water vapor or the opening of the valve, the steam pressure in the heating chamber increases, along with this, the condensation temperature increases, and the transfer of heat energy through the heat exchange wall increases. For the example under consideration, when the water vapor pressure in the heating chamber increased to 250 kPa, the condensate temperature increased to 1200C.

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