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You searched on: Author: erik johnsson

Displaying records 11 to 20 of 52 records.
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11. Mixture Fraction Analysis of Combustion Products in the Upper Layer of Reduced-Scaled Compartment Fire
Published: 2/1/2009
Authors: Gwon Ko, Anthony P Hamins, Matthew F Bundy, Erik L Johnsson, Sung C Kim, David Lenhert
Abstract: A mixture fraction analysis is performed to investigate the characteristics of chemical species production in smoky compartment fires burning condensed-phase hydrocarbon fuels. A series of fire experiments were conducted in a 2/5 scale compartment ba ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=861540

12. Experimental Study of the Effects of Fuel Type, Fuel Distribribution, and Vent Size on Full-Scale Underventilated Compartment Fires in an ISO 9705 Room (NIST TN 1603)
Series: Technical Note (NIST TN)
Report Number: 1603
Published: 10/1/2008
Authors: Andrew J. Lock, Matthew F Bundy, Erik L Johnsson, Anthony P Hamins, Gwon Ko, Cheolhong Hwang, Stephen P. Fuss, Richard H. Harris Jr.
Abstract: This report describes new full-scale ISO9705 compartment fire experiments, which include local measurements of temperature and species composition. The objective of this study was to generate a database of comprehensive and accurate measurements whi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=861620

13. Energy Balance in a Large Compartment Fire
Published: 4/1/2008
Authors: Anthony P Hamins, Erik L Johnsson, Alexander Maranghides
Abstract: The National Institute of Standards and Technology (NIST) and the Nuclear Regulatory Commission (NRC) are collaborating to assess and validate fire computer codes for nuclear power plant applications. This evaluation is being conducted through a seri ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101096

14. Analysis of Thermocouple Behavior in Compartment Fires
Published: 9/27/2007
Authors: Sung C. Kim, Anthony P Hamins, Matthew F Bundy, Gwon Ko, Erik L Johnsson
Abstract: The present study uses numerical simulations and analytical solutions to investigate the heat transfer processes associated with bare bead and double shield aspirated thermocouples. The uncertainty of thermocouple temperature measurements is emphasiz ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=861430

15. Reduced-Scale Ventilation-Limited Enclosure Fires: Heat and Combustion Product Measurements
Published: 9/3/2007
Authors: Erik L Johnsson, Matthew F Bundy, Anthony P Hamins
Abstract: The National Institute of Standards and Technology (NIST) recently conducted a series of reduced-scale compartment fire experiments with the purpose of generating a database of comprehensive and accurate measurements that can be utilized both for a b ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909873

16. Measurements of Heat and Combustion Products in Reduced-Scale Ventilation-Limited Compartment Fires
Series: Technical Note (NIST TN)
Report Number: 1483
Published: 7/10/2007
Authors: Matthew F Bundy, Anthony P Hamins, Erik L Johnsson, Sung C. Kim, Gwon Ko, David B. Lenhert
Abstract: The present study investigated the flow and heat transfer characteristics of aspirated thermocouples using a simple energy balance model and a 3D CFD model. The calculations quantify the systematic measurement error, providing an estimate of the me ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910809

17. Measurements of Heat and Combustion Products in Reduced-Scale Ventilation-Limited Compartment Fires
Series: Technical Note (NIST TN)
Report Number: 1483
Published: 7/1/2007
Authors: Matthew F Bundy, Anthony P Hamins, Erik L Johnsson, Sung C. Kim, Gwon Ko, David B. Lenhert
Abstract: A series of new reduced-scale compartment fire experiments were conducted, which included local measurements of temperature and species composition. The measurements are unique to the compartment fire literature. By design, the experiments provided a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908676

18. Free Space Optics Communication System Testing in Smoke and Fire Environments.
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7317
Published: 12/1/2006
Authors: Alexander Maranghides, William E. Mell, William D. Walton, Erik L Johnsson, Nelson P Bryner
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101069

19. Instrumentation for Bench- and Large-Scale Test Fixtures.
Published: 5/16/2006
Authors: K L Mcnesby, Erik L Johnsson
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100928

20. Free Space Optics Communication System Testing in Smoke and Fire Environments
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7317
Published: 4/1/2006
Authors: Alexander Maranghides, William E. Mell, William D. Walton, Erik L Johnsson, Nelson P Bryner
Abstract: Free-Space Optics (also known as FSO , or Optical Wireless ) can be used to transmit optical data, voice and video information. These laser-based systems require unobstructed line of sight to properly operate. FSO system performance, signal inten ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=861391



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