The venturi throat differential pressure is used to determine which parameter?

The venturi throat differential pressure is used to determine which parameter?

• A. Total steam flow rate
• B. Boiler pressure
• C. Condensate flow
• D. Pressure drop across the condenser

Answer: (A)

Venturi meters convert a pressure difference into a measure of how much fluid is moving. As steam flows through the narrow throat, its velocity increases and the static pressure drops. The pressure difference between the upstream area and the throat is proportional to the mass flow rate, so you use it to calculate the total steam flow rate. It’s not used to gauge boiler pressure, condensate flow, or the condenser’s pressure drop, which require different measurements. So, the venturi throat differential pressure is used to determine the total steam flow rate.

Venturi meters convert a pressure difference into a measure of how much fluid is moving. As steam flows through the narrow throat, its velocity increases and the static pressure drops. The pressure difference between the upstream area and the throat is proportional to the mass flow rate, so you use it to calculate the total steam flow rate. It’s not used to gauge boiler pressure, condensate flow, or the condenser’s pressure drop, which require different measurements. So, the venturi throat differential pressure is used to determine the total steam flow rate.