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[…] of ultrasonic meter. Modelling using velocity profile data and analysis of meter diagnostic data is presented in order to illustrate the physical processes that are at work. Test data is presented to demonstrate the performance of conventional and improved ultrasonic meter designs. The improved ultrasonic meter design incorporates a reducing nozzle to flatten and […] … Continue reading

[…] The nodes in the hidden layer and the output layer (X3) are active. They modify each input data with a weight and apply some sort of n onlinear function, normally a sigmoid function. The output of the output layer will hopefully show results that resemble the output when the network was trained. The active […] … Continue reading

16 Measuring Hydrogen And Hydrogen Enriched Natural Gas Flows With Ultrasonic Flow Meters – Experiences And Perspectives SICK Heinig

[…] meters, not all ultrasonic meters perform the same when they are subjected to a variety of flow profile conditions. This can be observed by reviewing the GRI test results published by Terrance Grimley at the 2000 AGA Operations Conference. Since different designs respond differently to installation effects, it can also be assumed they will […] … Continue reading

[…] er det imidlertid ikke helt ideelt av mange grunner på våtgass, og Daniel har i samarbeid med CEESI Colorado gjort flere eksper imenter rundt dette området på test fasilitet et for våtgass nettopp for å bedre måleusikkerheten på ultralydgassmålere hvor vesk eandeler er tilstede i prosess, samt for å se hvor stor innvirkning rørkonfigurasjon […] … Continue reading

[…] with wellheads located on Sleipner B platform. Sleipner B platform is the Normally Non Manned Platform (NNM) and all the wells can be remotely routed to the test -separator to measure the gas, water and condens ate streams from each well periodically. Alfa Nord reservoir is produced as a subsea tie back to Sleipner […] … Continue reading

INSTALLATION EFFECTSONMULTI-PATH ULTRASONIC FLOWMETERS: THE ‘ULTRAFLOW’ PROJECT • K. van Bloemendaal andP.M.A. vanderKam N.V. Nederlandse Gasunie,Groningen, theNetherlands. SUMMARY ‘ULTRAFLOW’ wasaJoint Industry Projectaimeda testablishing theeffect ofinstallation con- ditions onmulti-path ultrasonicflowmeters. Anextensive testseries wasperformed at5test fa- cilities on6″and 12″meters operating onnatural gasatpressures from10 to 60 bar. Alltest fa- cilities andprocedures arereviewed byanindependent international QualityAssessment Team, comprising […] … Continue reading

[…] toproviding astraightforward solution. The NEL highpressure recirculating loopfacility wasutilised., withareference massflowrate traceable tothe UK Primary Standard Gravimetric facility.Briefdetails areincluded on integrity checksperformed onthe loop anditsinstrumentation. Observations during testing arediscussed., forexample theaudible whistlethatoccurred for certain flowconditions andthesignificance ofthroat velocity asaparameter todescribe the flowmeter behaviour. Thepaper explains thejustification forthe various differential pressure tapping modifications madeduring theinvestigation. […] … Continue reading

[…] GASFLOWMETERS Dr. Peter Stoll,Verbundnetz GasAG Heiko Slawig, Verbundnetz GasAG Carsten Muller,PLEcon Geeuwke deBoer, Instromet Ultrasonics B.V. Marcel Vermeulen, InstrometUltrasonics B.V. ABSTRACT The subject ofthis paper isaseries of tests withanultrasonic gasflowmeter,control valvesof three different designsandsilencers ofthree different designs, operating undervarious conditions regardingpressurecutand flow rate. • The paper issplit upinto two sections, thefirst section, prepared byVerbundnetz […] … Continue reading

[…] the above activities, it was esta- blished that a PEP representative could supervise, in any time, the execution of all those works, and also to supervise the materials used during operations. The system was totally operated by the supplier of the service. Once the operations were finished, the liquids contained into the metering system […] … Continue reading

[…] = 1.037 �K/bar Both the above formulae assume that the process is adiabatic. 3 EXPERIMENTAL ARRANGEMENT A series of experiments was carried out at our Low Thornley Test Facility in order to determine the correct formula to be used for the temperature drop. A 200 mm pipe was set up as shown in Figure […] … Continue reading

[…] flow meters, Multiphase Flow Meters and Wet Gas Meters. However, most of these publications, if not all, are discussing the pure technical measurement issues, e.g. meter performance, test loop evaluations, accuracies and the various operational applications. With the introduction of all this more advanced measurement equipment in the upstream area of the oil and […] … Continue reading

[…] of acceptance of 0.3%. Several measures were taken in order to improve linearity and gain control of development of the K-factor. The 6” allocation meters have been tested with and without the Reynolds number correction implemented in the KROHNE flow computer, and new weighing factors for high viscosities have been implemented. A test program […] … Continue reading

[…] This saves the user time and money and makes implementing this feature very easy. To proof the feasibility of the concept to practica l installations a special test was performed at CEESI facilities. All testing was performed with a significant length of straight piping upstream of the metering package. This upstream length of straight […] … Continue reading

[…] 11631 Measurement of Fluid Flow – Methods of Specifying Flow Meter Performance , is described as the “value below which the absolute difference between two single successive test results obtained with the same flowmeter on the same fluid under the same conditions (same operator, same test facility, and a short interval of time, but […] … Continue reading

[…] with wellheads located on Sleipner B platform. Sleipner B platform is the Normally Non Manned Platform (NNM) and all the wells can be remotely routed to the test -separator to measure the gas, water and condens ate streams from each well periodically. Alfa Nord reservoir is produced as a subsea tie back to Sleipner […] … Continue reading

[…] due to multiphase process conditions and calculate the phase fraction, to apportion the overall mass flow to gas and liquid components. 1 Introduction One of the grea test advantages of Coriolis flow meter technology is relative flexibility in specifi cation and installation – generally no flow conditioning needed and high rangeability, and low sensitivity […] … Continue reading

[…] med rate måling på CO2 i væskeform Sikre sporbarhet i ratemålingen ved bruk av egnet kalibrering fasilitet Dempning av signaler i CO2 – ultralyd og radar. Funksjons test av ratemålere på CO2 (væske) Test spesifikasjoner CO2 Væske/Gass Kapasitet væske 0-50 m 3/h ( U sl= 0 -2.9 m/s) Kapasitet gass 0-70 m 3/h ( […] … Continue reading

[…] authors investigated, for onshore and offshore pipeline applications, the measurement uncertainty at selected points and the impact on mass balance calculations. This work also surveyed the available test benches for testing flow meters on CO 2 process conditions, and highlighted the lack of accredited full -scale test facilities, capable of covering near real operational […] … Continue reading

[…] be considered first, in pa rticular when subcooling degree is low, as it provides best insulation effic iency and withstands weather conditions when compared to traditional insulation materials. However the vacuum level must be monitored and maintained. · More information on type of vaporisers used and ad vantages and disadvantages of each type. Typical […] … Continue reading