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Author: jiann yang

Displaying records 11 to 20 of 131 records.
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11. Comparison of Gas Velocity Measurements and CFD Predictions in the Exhaust Duct of a Stationary Source
Published: 7/13/2011
Authors: Rodney A Bryant, Olatunde B. Sanni, Elizabeth F Moore, Robert P. Borthwick, Marco G Fernandez, Iosif I Shinder, Jiann C Yang, Aaron N Johnson
Abstract: Two series of independent flow measurements were conducted for cross validation of flow velocity in the exhaust duct of the NIST Large Fire Laboratory. In the first series, two pressure measurement probe types, an S probe and a 3-D probe, were used t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908658

12. Examination of United States Carbon Dioxide Emission Databases
Published: 6/10/2011
Authors: Robert P. Borthwick, James R Whetstone, Jiann C Yang, Antonio M Possolo
Abstract: This paper compared carbon dioxide emissions from plants obtained in two ways, first from the US Department of Energy, Energy Information Administration EIA-767 database and EIA-1605 Greenhouse Gas Reporting Program guidelines and second from the U.S ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908400

13. Experimental Characterization of Helium Dispersion in a -Scale Two-Car Residential Garage (NIST TN 1694)
Series: Technical Note (NIST TN)
Report Number: 1694
Published: 3/29/2011
Authors: William M Pitts, Jiann C Yang, Marco G Fernandez
Abstract: A series of experiments are described in which helium was released at constant rates into a 1.5 m 1.5 m 0.75 m enclosure designed as a -scale model of a two car garage. The purpose was to provide reference data sets for testing and validating c ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907864

14. A NUMERICAL STUDY OF THE RELEASE AND DISPERSION OF A BUOYANT GAS IN PARTIALLY CONFINED SPACES
Published: 3/4/2011
Authors: Kuldeep R Prasad, William M Pitts, Jiann C Yang
Abstract: Development of the hydrogen economy will require a better understanding of the potential for fires and explosions associated with the unintended release of hydrogen within a structure. The ability to predict the mixing and dispersion behavior of hydr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906120

15. High Pressure Release and Dispersion of Hydrogen in a Partially Enclosed Compartment
Published: 3/1/2011
Authors: Kuldeep R Prasad, Thomas George Cleary, William M Pitts, Jiann C Yang
Abstract: The study of compressed hydrogen release from high-pressure storage systems has practical application for hydrogen and fuel cell technologies. Such releases may occur either due to accidental damage to a storage tank or connecting piping, or direct ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906807

16. Spent Fuel Cask Seal Performance Testing: Interim Report (NIST TN 1687)
Series: Technical Note (NIST TN)
Report Number: 1687
Published: 1/31/2011
Authors: Jiann C Yang, Edward J Hnetkovsky
Abstract: High-temperature metallic seal performance tests were performed. All the tests were conducted at either 800 °C or 427 °C for 9 hours in a electrical furnace. In the three repeated tests under similar beyond-design-basis thermal exposure conditions ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907414

17. Vertical Release of Hydrogen in a Partially Enclosed Compartment : Role of Wind and Buoyancy
Published: 1/25/2011
Authors: Kuldeep R Prasad, William M Pitts, Jiann C Yang
Abstract: The natural and wind driven mixing and dispersion of hydrogen released in an accidental manner in a partially enclosed compartment with two vents is investigated using theoretical tools. A simple analytical model is constructed to predict the entra ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905660

18. Effect of wind and buoyancy on hydrogen release and dispersion in a compartment with vents at multiple levels
Published: 11/30/2010
Authors: Kuldeep R Prasad, William M Pitts, Jiann C Yang
Abstract: The natural and forced mixing and dispersion of hydrogen released in an accidental manner in a partially enclosed compartment with vents at multiple heights is investigated using theoretical tools. The key to the analysis is determination of the po ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905165

19. Prediction of Light Scattering and Ionization Chamber Sensor Response to Smolder Smoke Aerosols
Published: 9/8/2009
Authors: Thomas George Cleary, Jiann C Yang
Abstract: Diagnostic equipment developed for an International Space Station experiment, the Smoke Aerosol Measurement Experiment (SAME), utilized three measurement devices to determine size properties of the smoke aerosols generated. They consisted of a light ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903316

20. A Thermodynamic Analysis of Refilling of a Hydrogen Tank
Published: 8/31/2009
Author: Jiann C Yang
Abstract: A thermodynamic analysis of refilling of a gaseous hydrogen fuel tank is described. This study may lend itself to the applications of refilling a hydrogen storage tank onboard a hydrogen fuel cell vehicle. The gaseous hydrogen is treated as an idea ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901791



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