A new test facility has been constructed at National Metrology Institute of Japan (NMIJ) for calibration of feed water flowmeters at nuclear power stations for Reynolds numbers of up to 16 million. This very large Reynolds number is achieved at a flow rate of 3.33 m3/s (12,000 m3/h) and water temperature of 70 degrees C in a 600 mm pipe. This new facility has four sets of pumps and reference flowmeters installed in parallel upstream of the test section. These flowmeters are calibrated at 0.83 m3/s (3,000 m3/h) one by one without dismounting from the loop by using a 50 t weighing tank; this tank has been used as the primary standard for the existing flow facility. Then the flow rate can be increased up to 3.33 m3/s (12,000 m3/h) with all of the pumps and flowmeters working at the same time. This paper describes the concept of the new facility, the fundamental uncertainty estimation, and the examination of its measurement capability.
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ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering
July 17–20, 2006
Miami, Florida, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-4751-9
PROCEEDINGS PAPER
Uncertainty Examination of New Water Flow Calibration Facility for Nuclear Power Application Available to Purchase
Masaki Takamoto
Masaki Takamoto
AIST, Tsukuba, Japan
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Hiroshi Sato
AIST, Tsukuba, Japan
Noriyuki Furuichi
AIST, Tsukuba, Japan
Yoshiya Terao
AIST, Tsukuba, Japan
Masaki Takamoto
AIST, Tsukuba, Japan
Paper No:
FEDSM2006-98500, pp. 987-992; 6 pages
Published Online:
September 5, 2008
Citation
Sato, H, Furuichi, N, Terao, Y, & Takamoto, M. "Uncertainty Examination of New Water Flow Calibration Facility for Nuclear Power Application." Proceedings of the ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. Volume 2: Fora. Miami, Florida, USA. July 17–20, 2006. pp. 987-992. ASME. https://doi.org/10.1115/FEDSM2006-98500
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