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Displaying 926 - 950 of 7702

Performance of Metal and Polymeric O Ring Seals during Beyond-Design-Basis Thermal Conditions

December 28, 2016
Author(s)
Jiann C. Yang, Edward J. Hnetkovsky, Doris L. Rinehart, Marco G. Fernandez, Felix Gonzalez, Joseph Borowsky
This paper summarizes the small scale thermal exposure test results of the performance of metallic and polymeric O- ring seals typically used in radioactive material transportation packages. Five different O-ring materials were evaluated: Inconel/silver

Online Airtightness Calculator for the US, Canada and China

December 15, 2016
Author(s)
Som Shrestha, Lisa Ng, Steven Emmerich, Diana Hun, Laverne Dalgleish
The contribution of air leakage to heating and cooling loads has been increasing as the thermal resistance of building envelopes continues to improve. Easy-to-access data are needed to convince building owners and contractors that enhancing the

Investigating Firebrand Accumulation over Various Scales

November 22, 2016
Author(s)
Samuel Manzello, Sayaka Suzuki
As structures are exposed to wind, stagnation planes are produced around structures. Using full-scale experiments, the authors demonstrated that firebrands may accumulate in these stagnation planes. In a subsequent full-scale study performed by the authors

Smoldering and Flame Resistant Textiles via Conformal Barrier Formation

November 2, 2016
Author(s)
Mauro Zammarano, Shonali Nazare, John R. Shields, Kathleen M. Hoffman, Rick D. Davis
A durable and flexible silicone-based backcoating (halogen and formaldehyde free) is applied to the backside of an otherwise smoldering-prone and flammable fabric. When exposed to fire, cyclic siloxanes (produced by thermal decomposition of the backcoating

Energetics of Small and Moderate-Scale Gaseous Pool Fires

November 1, 2016
Author(s)
Anthony P. Hamins
A series of measurements were made to characterize the global properties of moderate-sized pool fires steadily burning in a quiescent environment. A wide range of parameters were considered including lightly and heavily sooting hydrocarbon fuels (methane

The Structure of a Moderate-Scale Methanol Pool Fire

November 1, 2016
Author(s)
Anthony P. Hamins, Andrew Lock
A series of measurements was made to characterize the structure of a moderate-sized methanol pool fire steadily burning in a quiescent environment. Time averaged local measurements of temperature and gas species concentrations were made in a steadily

Measuring Temperature in Emission Testing Micro-chambers

October 24, 2016
Author(s)
Dustin G. Poppendieck, Edwin Guillermo, Havishk Tripathi
ASTM subcommittee D22.05 on Indoor Air is working to finalize WK40293: Standard Test Method for Estimating Chemical Emissions from Spray Polyurethane Foam (SPF) Insulation Using Micro-Scale Environmental Test Chambers. One issue in WK40293 is determining

Characterization of Emissions from a Non-Ideal Spray Polyurethane Foam Sample

October 17, 2016
Author(s)
Dustin G. Poppendieck, Mengyan Gong, Lauren E. Lawson, Steven J. Emmerich
Many homeowners and government programs are using insulating products, such as SPF, at a growing rateto increase the energy efficiency of their residences and other constructed buildings. Retrofitting or addition of foam insulation in new construction is
Displaying 926 - 950 of 7702
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