Reliable data for energy balance
Not only do systems that monitor the consumption of steam, cooling water and condensate measure and optimise actual consumption, they also ‘notify’ in the case of expensive peaks in consumption. When measuring steam flow, orifice measurement systems are often used. Although these systems are easy to use, the disadvantage is that they feature a smaller measuring range, lower accuracy and increased pressure loss. When it comes to fluctuating pressures and temperatures, the measurements are generally too inaccurate as orifices do not feature pressure or temperature compensation. The flowmeter with integrated pressure and temperature measurement, provides reliable data for energy balance – accurate with a large measuring range.
- Systems that monitor the consumption of steam, cooling water and condensate extremely accurately, are being installed more frequently in process industries.
- Although orifice measurement systems are often used, when it comes to fluctuating pressures and temperatures, the measurements are generally too inaccurate.
- Vortex flow measuring methods have proven successful in these processes and the device described in the article features integrated pressure and temperature compensation.
Published as: Basis for reliable balance sheets
By J Alexander, Krohne, Electricity+Control, October 2011 (pgs 4 – 6).