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Title: Scale Up Tests On The Nova Flow Conditioner For Orifice Meter Applications
Author: U. Karnik, W.Studzinski, J. Geerligs, R. Kowch
Source: 1999 International Symposium on Fluid Flow Measurement
Year Published: 1999
Abstract: The NOVA-50E flow conditioner has been extensively and successfully tested for its performance as an isolating type of flow conditioner in orifice meter applications. However, it has only been tested in 4inch meter tubes. Although the flow conditioner is designed to be scalable, the claim was verified in the present tests in an 8 inch line size. The disturbance was generated by using two elbows out of plane, with zero spacer between the elbows. The 8-inch flow conditioner has been placed at several distances from the installation and from an 8 inch orifice meter. The tests were carried out at the Didsbury Gas Dynamic Test Facility in natural gas, at static pressures in the range 5000 to 6000 kPa. The orifice meter performance in the presence of the flow conditioner was compared to its baseline performance when placed downstream of a 19 tube bundle + 80D long meter run. The reference flow, in both cases, was a bank of sonic nozzles traceable to the primary gravimetric system. Results indicate that the flow conditioner is scalable and performs as expected in larger meter runs. In addition to the flow conditioner performance tests, some results of the 8-inch orifice meter without the flow conditioner are also presented. These results agree very well with the data available in literature.




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