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Search Publications by: Jiann C. Yang (Fed)

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Displaying 276 - 300 of 316

Optimization of System Discharge (NIST SP 890)

November 1, 1995
Author(s)
Jiann C. Yang, Thomas G. Cleary, I Vazquez, C I. Boyer, M D. King, B D. Breuel, C A. Womeldorf, William L. Grosshandler, Marcia L. Huber, L Weber, G. Gmurczyk
Current aircraft fire suppression bottles for dry bay and engine nacelle applications, which are designed to meet Military Specification MIL-C-22284A (proof pressure of 9.62 MPa and minimum burst pressure of 12.37 MPa), are normally filled with liquid

Solid Propellant Gas Generators: Proceedings of the 1995 Workshop (NISTIR 5766)

November 1, 1995
Author(s)
Jiann C. Yang, William L. Grosshandler
A workshop on solid propellant gas generators was held on June 28-29, 1995 at the National Institute of Standards and Technology under the sponsorship of the Building and Fire Research Laboratory. Gas generator technology was first proposed as alternative

Storage and Discharge Characteristics of Halon Alternatives

October 21, 1995
Author(s)
Jiann C. Yang, Thomas G. Cleary, I Vazquez, C I. Boyer, M D. King, B D. Breuel, Marcia L. Huber, L Weber
Three important issues regarding the use of halon alternatives for in-flight fire protection applications were studied as part of the current halon alternative research program at the National Institute of Standards and Technology (NIST): (1) the

Model for Calculating Alternative Agent/Nitrogen Thermodynamic Properties

May 9, 1995
Author(s)
Jiann C. Yang, Marcia L. Huber, C I. Boyer
A thermodynamic model based on the extended corresponding states principle has been developed to calculate the solubilities of nitrogen in five selected agents, HFC-227ea, CF3I, FC-218, HFC-125, and CF3Br and the pressure-temperature relationship for agent

Pipe Flow Characteristics of Alternative Agents for Engine Nacelle Fire Protection

January 1, 1995
Author(s)
Thomas G. Cleary, Jiann C. Yang, William L. Grosshandler, Michelle King, C I. Boyer
As part of the U.S. Air Force, Army, Navy and FAA Halon Replacement Project at NIST, the pipe flow characteristics were investigated for three engine nacelle alternative candidates: HFC-227ea, HFC-125 and CF31. The flow regime in suppression system piping

Pipe Flow Characteristics of Alternative Agent/Nitrogen Mixtures (NISTIR 5499)

September 1, 1994
Author(s)
Thomas G. Cleary, M D. King, Jiann C. Yang, William L. Grosshandler
The evaluation of alternative agents for application in engine nacelle fire protection includes delivery efficiency of agent from a remote storge bottle through piping to the nacelle injection loacation. Present military requirements for halon systems

Discharge Characteristics of Cryogenic Fluids From a Pressurized Vessel

July 18, 1994
Author(s)
Jiann C. Yang, William M. Pitts, B D. Breuel, G. Gmurczyk, William J. Rinkinen, W G. Cleveland
An experimental technique to study the rapid release of liquid cryogenic fluids from a pressurized vessel orientated downward is described. A rupture disc was used as the release mechanism. Experimental observations were made on the discharge

Fluid Dynamics of Agent Discharge (NIST SP 861)

April 1, 1994
Author(s)
William M. Pitts, Jiann C. Yang, G. Gmurczyk, Leonard Y. Cooper, William L. Grosshandler, W G. Cleveland, Cary Presser
The extinguishment of a fire using gaseous agents is a very complicated process which is not completely understood. Current fire-fighting agents such as halon 1301 and halon 1211 are believed to function by a combination of chemical (catalytic removal of

Thermodynamic Properties of Alternative Agents (NIST SP 861)

April 1, 1994
Author(s)
Jiann C. Yang, B D. Breuel
Depending upon their applications, current halon 1301 (CF3Br) bottles are normally filled to about half of the bottle volume, and the bottle is then pressurized with nitrogen to 4.1 MPa (600 psig) at room temperature. The purpose of using the