Cooling Flow Measurement Techniques

2018 ◽  
Author(s):  
Keyword(s):  
Flow Measurement ◽  
Measurement Techniques ◽  
Cooling Flow

Multiphase Flow Measurement Techniques for Slurry Transport

2011 ◽  
Vol 9 (1) ◽  
Author(s):  
Katherine J. Albion ◽  
Lauren Briens ◽  
Cedric Briens ◽  
Franco Berruti
Keyword(s):  
Multiphase Flow ◽  
Flow Measurement ◽  
Measurement Techniques ◽  
Doppler Imaging ◽  
Activation Technique ◽  
Monitoring Methods ◽  
Solids Concentration ◽  
Coriolis Mass Flowmeter ◽  
Neutron Activation Technique ◽  
Slurry Transport

Multiphase flow measurement techniques are required to monitor slurry transport in industrial processes. Monitoring methods are used to ensure that the slurry is transported under specific conditions, and as an indicator of potential problems. Intrusive and non-intrusive sensors are used to measure solids concentration, mass flowrates, velocities and flow patterns. Sensing techniques are based on pressure, electrical, sound, imaging and nuclear properties. In this literature review, measurement techniques examined for horizontal pipelines include pressure measurements, the Coriolis mass flowmeter, acoustic sensors, capacitance, conductivity and microwave probes, electrical resistance tomography, laser Doppler imaging and the Pulsed Neutron Activation Technique. The principles of operation are described along with experimental results and a critique of the sensors and technology.

Comparison of Primary Flow Measurement Techniques Used During Combined Cycle Tests

2008 ◽  
Vol 130 (6) ◽  
Author(s):  
W. Cary Campbell ◽  
Warren H. Hopson ◽  
Mark A. Smith
Keyword(s):  
Flow Measurement ◽  
Performance Test ◽  
Measurement Techniques ◽  
Combined Cycle ◽  
Steam Flow ◽  
Alternative Methods ◽  
Test Results ◽  
Steam Turbines ◽  
Primary Flow ◽  
Flow Meters

One of the most significant contributors to the overall uncertainty of a performance test of a combined cycle steam turbine is the uncertainty of the primary flow measurement. ASME performance test codes provide many alternative methods for determining flow. In two actual combined cycle tests performed in 2005, the following three alternate methods were used to determine the high-pressure (HP) steam flow into the combined cycle steam turbines: (1) Derivation from measured HP feedwater flow using calibrated PTC 6 throat tap nozzles, (2) derivation from low-pressure (LP) condensate using calibrated PTC 6 throat tap nozzles, and (3) derivation from LP condensate using calibrated orifice metering sections. This paper describes the design, calibration, and installation of each flow meter involved, the methods used to calculate the HP steam flow, the estimated uncertainty of the HP steam flow derived using each method, and the actual test results using each method. A comparison of the methods showed that there are distinct advantages with one of the methods and that very low uncertainties in HP steam flow can be achieved if sufficient attention is applied to the design, calibration, and installation of all flow meters involved. Note that the information in this paper was originally published in ASME Paper PWR2006-88074 and presented at the 2006 ASME Power Conference in Atlanta, GA. For detailed diagrams, figures, and tabulations of data and analysis, please refer to the published proceedings from that conference.

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