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Author: anthony hamins

Displaying records 141 to 150 of 153 records.
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141. Simultaneous Optical Measurement of Soot Volume Fraction, Temperature and CO2 in Heptane Pool Fire
Published: 7/31/1994
Authors: M Y Choi, Anthony P Hamins, H. Rushmeier, Takashi Kashiwagi
Abstract: Detailed measurements of the temperature, soot volume fraction and CO2 have been performed for a 10 cm diameter heptane fire. In addition, the concentrations of H2O and CO were inferred from generalized state relationships. The heat feedback to the s ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909892

142. Flame Suppression Effectiveness (NIST SP 861)
Series: Special Publication (NIST SP)
Report Number: 861
Published: 4/1/1994
Authors: Anthony P Hamins, G. Gmurczyk, William L. Grosshandler, R. G. Rehwoldt, I Vazquez, Thomas George Cleary, Cary Presser, K Seshadri
Abstract: A flame will be extinguished when the time required for the chain reaction which sustains combustion exceeds the time it takes to replenish the necessary heat and reactants. A characteristic time for reaction can be estimated from the inverse of a gl ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909743

143. Estimate of the Effect of Scale on Radiative Heat Loss Fraction and Combustion Efficiency. Short Communication
Published: 1/1/1994
Authors: Jiann C Yang, Anthony P Hamins, Takashi Kashiwagi
Abstract: The effect of the fire size on radiative heat loss fraction and combustion efficiency was examined by an analysis of scale for pool flames with varying diameter (D). Correlations between D and radiative heat loss fraction or combustion efficiency wer ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909680

144. Simultaneous Optical Measurement of Soot Volume Fraction and Temperature in Premixed Flames
Published: 1/1/1994
Authors: M Y Choi, Anthony P Hamins, George William Mulholland, Takashi Kashiwagi
Abstract: The performance of a three-wavelength optical probe technique for measuring soot volume fraction and temperature was assessed by conducting experiments in the homogeneous environment of a premixed flame. Using a premixed ethylene/air flame, the tempe ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909891

145. Comparisons of Soot Volume Fraction Measurements Using Optical and Isokinetic Sampling Techniques
Published: 10/25/1993
Authors: M. Y. Choi, George William Mulholland, Anthony P Hamins, Takashi Kashiwagi
Abstract: In a previous study, the performance of a three-line optical probe technique for measuring soot volume fraction and temperature was assessed by conducting experiments in the path-invariant environment of a premixed flame. In that study, the temperatu ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909587

146. Simultaneous Optical Measurement of Soot Volume Fraction and Temperature in Heptane Pool Fires
Published: 10/25/1993
Authors: M. Y. Choi, Anthony P Hamins, H. Rushmeier, Takashi Kashiwagi
Abstract: In large pool fires radiative heat transfer governs the burning and flame spread rates and therefore is a key factor in assessing potential fire hazards. The radiative heat feedback from the flame to the fuel surface is controlled by the temperature ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909877

147. Agent Screening for Halon 1301 Aviation Replacement
Published: 10/20/1993
Authors: William L. Grosshandler, Richard George Gann, Anthony P Hamins, Marc R Nyden, William M Pitts, Jiann C Yang, Michael Russel Zachariah
Abstract: A comprehensive experimental program is described in which eleven gaseous agents and sodium bicarbonate powder have been screened, so that the best three candidates for subsequent full-scale aircraft fire extinguishment evaluation can be identified. ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909510

148. Structure of Inhibited Counterflowing Nonpremixed Flames
Published: 5/11/1993
Authors: Anthony P Hamins, M H Yang, I K Puri
Abstract: Recent international agreements call for a halt to the manufacture of CF3Br (Halon 1301), a commonly used halon fire suppressant, due to its high ozone-depletion potential. Ideally, the search for replacement compounds should be guided by fundamental ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909920

149. Extinction of Inhibited, Stretched and Diluted Counterflowing Flames
Published: 3/15/1993
Authors: M H Yang, I K Puri, Anthony P Hamins
Abstract: It has been shown that a criteria for flame extinction can be described by the Damkohler Number which is the ratio of a characteristic flow or diffusion time to a characteristic chemical reaction time. As the Damkohler Number is reduced the fuel burn ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909711

150. Simultaneous Optical Measurement of Soot Volume Fraction and Temperature
Published: 3/15/1993
Authors: M. Y. Choi, Anthony P Hamins, Takashi Kashiwagi
Abstract: Radiative heat transfer processes in large fires govern the burning rate, the flame spread rate and the potential for fire hazards. These processes are controlled by the detailed structure of the fire, primarily the temperature and soot distributions ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909876



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