REPORT OF RECENT ACTIVIES

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Presentation transcript:

REPORT OF RECENT ACTIVIES APMP2011 KOBE TC FF Dr Nguyen Hong Thai VMI

- 2011 Apr. Per review Dr Jong Seung Paik (KRISS) - Jul. Submitted CMC - CMC TCFF and TCQS - Aug. approved by TCFF - Oct. : posted at JCRB website for inter-regional Dr Yoshiya Terao (TCFF Chair) - Comments from Euromet and SIM VMI 2011

Calibration or Measurement Service Measurand Level or Range Quantity Instrument or Artifact Instrument Type or Method Minimum value Maximum value Units Volume Volumetric Vessel Weighing method 0.1 500 L Water volume flowrate Water flowmeter Positive displacement, turbine, differential pressure, ultrasonic, vortex, electromagnetic 1 200 m3/h Gas volume flowrate Gas flowmeter Transfer method 0.05 5

Measurement Conditions/Independent Variable Expanded Uncertainty Parameter Specifications Value Units Coverage Factor Level of Confidence Is the U Relative one? Liquid distilled water 0.012 % 2 95% Yes Temperature ambient Pressure Humidity Fluid water 0.1 max to 260 kPa air 0.14 max to 800 kPa

VMI AND WATER SUPPLY Co. HCM CITY TEST RIG FOR VERIFICATION AND TESTING WATER METERS VMI AND WATER SUPPLY Co. HCM CITY

DN: 100 – 600 mm Flow rate: 2500 m3/h Volumetric proving tanks: 500 L; 10000L; Uncertainty: 0.1% Master meters DN: 65; 200; 600 mm Uncertainty: 0.5% Water meters MPE: Class 2

Performance test: Accuracy Reverse flow Flow disturbance - Endurance

THANK YOU FOR YOUR ATTENTION