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Author: jiann yang

Displaying records 91 to 100 of 127 records.
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91. An Analysis of the Wright Patterson Full-Scale Engine Nacelle Fire Suppression Experiments (NISTIR 6193)
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6193
Published: 11/1/1997
Authors: Anthony P Hamins, Thomas George Cleary, Jiann C Yang
Abstract: An analysis is presented on the full-scale suppression experiments conducted during 1996 and 1997 in the F-22 engine nacelle fire simulator at Wright Patterson Air Force Base. Experiments investigated the relative effectiveness of halogenated agents ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909511

92. Evaporation of a Small Water Droplet Containing an Additive
Published: 8/1/1997
Authors: M D King, Jiann C Yang, W. S. Chien, William L. Grosshandler
Abstract: An experimental study on the evaporation of a small water droplet containing an additive on a heated, polished stainless-steel surface was performed. Solutions of water containing 30% (w/w) and 60% (w/w) of potassium acetate and sodium iodide were us ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911498

93. Experimental Observations of PMMA Spheres Burning at Reduced Gravity
Published: 5/19/1997
Authors: Jiann C Yang, Anthony P Hamins, M Glover, M D King
Abstract: Polymer combustion is a very complicated process which involves the coupling of gas-phase combustion, melting, pyrolysis and possible charring of the condensed phase. Although only a few studies on the combustion of a spherically shaped polymer have ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909687

94. Effect of Sample Size on the Heat Release Rate of Charring Materials
Published: 3/3/1997
Authors: S J Ritchie, Kenneth David Steckler, Anthony P Hamins, Thomas George Cleary, Jiann C Yang, Takashi Kashiwagi
Abstract: The burning of a horizontal wood slab situated atop an insulating substrate was modeled using three coupled submodels for the gas-phase, wood, and substrate processes. A global analytical model was used to determine the radiative and convective heat ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909657

95. Measured and Predicted Thermodynamic Properties of Selected Halon Alternative/Nitrogen Mixtures
Published: 1/1/1997
Authors: Jiann C Yang, I Vazquez, C I Boyer, Marcia L Huber, L A. Weber
Abstract: Experimental measurements of selected thermodynamic properties of alternative agent/nitrogen mixtures were performed. The selected alternatives were HFC-227 ea (C3HF7), CF3I, FC-218 (C3F8), and HFC-125 (C2HF5); CF3Br was also included as a reference. ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911528

96. Simple Piezoelectric Droplet Generator
Published: 1/1/1997
Authors: Jiann C Yang, W. S. Chien, M D King, William L. Grosshandler
Abstract: A design for a piezoelectric on-demand droplet generator is presented. Its simple construction and ease of operation distinguish this generator from other previously reported. The droplet generator has been successfully used to produce droplets of aq ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911561

97. Aerosol and SPGG Technology Fire Suppression Screening Methods (NISTIR 5904)
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 5904
Published: 10/28/1996
Authors: William L. Grosshandler, Jiann C Yang, Thomas George Cleary
Abstract: The search for alternatives to halons for fire suppression applications has identified not only new compounds which have physical properties similar to the bromochlorofluorocarbon family, but also inert gaseous agents that are released from a solid s ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911308

98. Combustion of Polymethylmethacrylate Spheres at Normal and Reduced Gravity (NISTIR 5904)
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 5904
Published: 10/28/1996
Authors: Jiann C Yang, Anthony P Hamins, N Gorchkov, M Glover
Abstract: Polymer combustion is a highly complicated process where chemical reactions may occur not only in the gas phase, but also in the condensed phase as well as at the solid-gas interphase. The complication arises due to the coupling between the condensed ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909555

99. Evaporation of a Small Aqueous Suppressing Agent Droplet (NISTIR 5904)
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 5904
Published: 10/1/1996
Authors: W. S. Chien, Jiann C Yang, M D King, William L. Grosshandler
Abstract: Due to its ozone-depleting potential, halon 1301 (CF3Br) has been banned from production under the Montreal Protocol. The research for halon replacement(s) has led to the reconsideration of using water in certain applications. However, under cold sto ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911497

100. Minimum Mass Flux Requirements to Suppress Burning Surfaces With Water Sprays (NISTIR 5795)
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 5795
Published: 4/1/1996
Authors: Jiann C Yang, C I Boyer, William L. Grosshandler
Abstract: Experimental measurements of extinguishment times of burning solid fuels using water were conducted using a prototype micronozzle array and a piezoelectric droplet generator. Solid fuels considered included solid white pine, polymethylmethacrylate, a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911531



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