Flow metering method for gas mixture calculates liquid/gas ratio of gas mixture for determining its heat dissipation value

摘要

The flow metering method uses a flow sensor in the flow path of the gas mixture, provided with a heating device and a temperature sensor responding to the temperature of the heating device. A second temperature sensor measures the vaporization temperature of the liquid, the liquid/gas ratio of the gas mixture calculated from the vapor pressure curve for the liquid and the liquid temperature, for providing a signal characterizing its heat dissipation value, used for calculating a flow metering signal.