Patent ID: 9476741
Filing Date: 2016-10-25
CPC Classification: G01F

Claim Text:
1. A method for determining mass flow of an, at least at times, at least two-phase medium flowing through a measuring tube of a vortex flow measuring device, wherein the measuring tube has in a measuring cross section at least one bluff body for producing vortices and wherein, by sensor registering of the produced vortices, a flow velocity of the medium in the region of the measuring cross section is determined, the method comprising: A) determining density of the medium in the region of the measuring cross section from the specific total enthalpy of the medium in the region of the measuring cross section, from the flow velocity of the medium in the region of the measuring cross section, from a static pressure of the medium in the region of the measuring cross section and from a static temperature of the medium in the region of the measuring cross section; and B) determining mass flow from the determined flow velocity, the determined density and a flow cross section of the medium in the region of the measuring cross section.