The Contrec 515 SC03 is a reliable solution for measuring the volume, mass, and energy content of steam. It uses single or stacked differential pressure mass flow inputs along with temperature and/or pressure inputs to provide accurate readings.
This versatile instrument features various modes, making it ideal for a wide range of steam applications. It calculates flow using standard differential pressure equations and takes into account the specific conditions under which the flowmeter was calibrated.
According to the IAPWS Industrial Formulation (1997), this device accurately computes mass flow and energy based on the thermodynamic properties of steam. The calculations utilize pressure and temperature values to determine specific volume and specific enthalpy.
CALCULATIONS
The steam energy calculations are derived from the IAPWS Industrial Formulation (1997).
Superheated steam regions include:
0°C < t < 800°C, P < 100MPa
32°F < t < 1472°F, P < 14500psia
800°C < t < 2000°C, P < 10MPa
1472°F < t < 3632°F, P < 1450psia
Saturated steam regions include:
0°C < t < 374°C (critical temperature)
32°F < t < 705°F
P < 22MPa (critical pressure)
P < 3190psia
Water region is:
0°C < t < t saturation at system pressure
32°F < t < t saturation at system pressure
Formulas
Volume flow = Mass flow x Specific volume
Energy flow = Mass flow x Specific enthalpy
