GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW) | ||||||
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15:55 Nov 20, 2007 |
English language (monolingual) [PRO] Tech/Engineering - Metallurgy / Casting | |||||||
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| Selected response from: Kim Metzger Mexico Local time: 16:40 | ||||||
Grading comment
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SUMMARY OF ALL EXPLANATIONS PROVIDED | ||||
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5 | internal self-heating ..exothermic reaction..smoldering |
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3 +1 | burning out |
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burning out Explanation: Punking An exothermic reaction that usually is the burning out of binder/resin due to excessive fuel with oxygen. http://www.insulation.org/techs/glossary.pdf PUNKING: Burning out of binder due to excessive heat. BINDER: Substance contained in insulation material which stabilizes the fibers. http://www.dyplastproducts.com/resources_glossary2.htm |
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internal self-heating ..exothermic reaction..smoldering Explanation: Definitions of "punk" on the Web: * A slow burning wick for lighting the fireworks. www.fireworks.com/safety/glossary.asp A punk is a stick used for lighting firework fuses. It is safer than a match or a lighter because it can be used from a greater distance and does not use an open flame. Punks often resemble sticks of incense.They're made of bamboo and a brown coating. www.wen.wikipedia.org/wiki/Punk (fireworks) Insulation-related incidents are some of the most common types involving organic HTF systems. Typically, a leak occurs at a flange or instrument connection and soaks into the pipework insulation (e.g., calcium silicate, Fibreglass, mineral wool). Eventually the saturated insulation is ignited when the circulating fluid and the piping heat the HTF and, in the presence of air, slowly oxidise the fluid. This produces low AIT components which results in a "punking" type fire. This fire can act as an ignition source for other fires. http://www.oiltech.com.au/bulletin/bulletin_text/firesafe.ht... [PDF] NATIONAL INSULATION STANDARDS high temperatures without contributing to a possible fire hazard. ...... PUNKING The incandescent, or glow, which lingers in some material after any flame, or other evidence of fire, has departed. www.tiac.ca/download/TIAC_standards_2005_e.pdf High Temperature or Fire LAPINUS PRODUCTS EXPOSED TO HIGH TEMPERATURES OR FIRE .... not show any evidence of internal self-heating (exothermic reaction or punking) during the test. ... www.lapinus.com/sw42144.asp Fire Patterns on Upholstered Furniture: Smoldering versus Flaming . The smoldering-to-flaming fire transition is of particular importance because. the hazards of smoldering fires are so different from flaming fires. ... www.springerlink.com/index/1CE85PPG1RC6UU5J.pdf |
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