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Author: douglas olson

Displaying records 21 to 30 of 31 records.
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21. Characterization of a compact 200 MPa controlled clearance piston gauge as a primary pressure standard using the Heydemann and Welch method
Published: 1/1/2006
Authors: Ashish K. Bandyopadhyay, Douglas A Olson
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901908

22. Accurate Determination of Equilibrium State Between Two Pressure Balances Using a Pressure Transducer
Published: 7/1/2005
Authors: T Kobata, Douglas A Olson
Abstract: To determine an equilibrium state between two pressure balances accurately, the measurement method using a precise pressure transducer and two air-operated constant volume valves is proposed in this paper. The advantages of the proposed methods are a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830944

23. Automating the Calibration of Two Piston Gage Pressure Balances
Published: 8/1/2002
Authors: Douglas A Olson, T Kobata
Abstract: We propose a method to automate the data-gathering process in the cross-float calibration of one piston gage pressure balance against a second piston gage pressure balance. Rather than adjusting small trim masses until the balances generate equal pr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830781

24. Characterization of a Controlled-Clearance Piston Gauge Using the Heydemann-Welch Model
Published: 8/1/2002
Authors: T Kobata, James W Schmidt, Douglas A Olson
Abstract: A study on the characterization of a controlled-clearance piston gauge was performed at the National Institute of Standards and Technology (NIST). The characterization covers the pressure range from 37.5 MPa to 288 MPa, at jacket pressures up to 76 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830784

25. Capabilities and Uncertainties of the Piston Gage Pressure Standards at NIST
Published: 11/30/2001
Author: Douglas A Olson
Abstract: The National Institute of Standards and Technology operates and maintains piston gage pressure standards from 7 kPa to 280 Mpa, a span of over 4 decades in pressure. Gas capabilities range from 7 kPa to 1000 Mpa, and oil capabilities range from 1 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830327

26. Heat Transfer in Supercritical Carbon Dioxide With Convective Boundary Conditions
Published: 1/1/2001
Author: Douglas A Olson
Abstract: We report measurements of heat transfer coefficients of flowing supercritical carbon dioxide (7.38 MPa critical pressure, 31.1 degrees C critical temperature) in a heated horizontal tube. The tube was 10.9 mm ID, was heated over 274 cm, and had an u ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830721

27. Heat Transfer of Supercritical Carbon Dioxide Flowing in a Cooled Horizontal Tube
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6496
Published: 5/1/2000
Author: Douglas A Olson
Abstract: We report measurements of heat transfer coefficients of flowing supercritical carbon dioxide (7.38 MPa critical pressure, 31.1 C critical temperature) in a cooled horizontal tube. The tube was 10.9 mm ID, was cooled over 274 cm, and had an adiabati ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830672

28. Turbulent Heat Transfer in Supercritical Carbon Dioxide in a Heated Horizontal Tube
Published: 8/1/1999
Author: Douglas A Olson
Abstract: We report measurements of heat transfer coefficients of flowing supercritical carbon dioxide (7.38 MPa critical pressure, 31.1 degrees C critical temperature) in a heated horizontal tube. The tube was 10.9 mm ID, was heated over 274 cm, by hot wate ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830623

29. Heat Transfer in Turbulent Supercritical Carbon Dioxide Flowing in a Heated Horizontal Tube
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6234
Published: 9/1/1998
Authors: Douglas A Olson, David W Allen
Abstract: We report measurements of heat transfer coefficients of flowing supercritical carbon dioxide (7.38 MPa critical pressure, 31.1 degrees C critical temperature) in a heated horizontal tube. The tube was 10.9 mm ID, was heated over 274 cm, and had an u ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830608

30. The New NIST Low Frost-Point Humidity Generator
Published: 12/1/1997
Authors: Gregory E Scace, P H Huang, Joseph Terence Hodges, Douglas A Olson, James R Whetstone
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100319



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