SMOKE POINTS OF MICROGRAVITY AND NORMAL GRAVITY COFLOW DIFFUSION FLAMES

Simple item page
dc.contributor.advisorSunderland, Peter Ben_US
dc.contributor.authorDotson, Keenan Thomasen_US
dc.contributor.departmentFire Protection Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2010-02-19T07:09:17Z
dc.date.available2010-02-19T07:09:17Z
dc.date.issued2009en_US
dc.description.abstractSmoke points were measured in microgravity aboard the International Space Station (ISS) as part of the Smoke Points in Coflow Experiment (SPICE), and in normal gravity conditions. In microgravity conditions increasing the coflow velocity or decreasing the burner diameter increased the smoke point flame length. A simplified prediction of centerline jet velocity did not yield residence-time-based criticalities or data collapse. Simulation of non-reacting flows showed that the simplified centerline velocity prediction was able to predict velocity decay for only relatively weak coflows. An improved model may yield different results. In normal earth gravity coflow velocity exhibited mixed effects. For burner diameters of 0.41, 0.76, and 1.6 mm, smoke points increased with increases of coflow velocity. For an unconfined coflow burner with a burner diameter of 13.7 mm smoke point length decreased with increasing coflow velocity for ethylene and propylene, while increasing for propane flames.en_US
dc.identifier.urihttp://hdl.handle.net/1903/10005
dc.subject.pqcontrolledEngineering, Mechanicalen_US
dc.subject.pqcontrolledEngineering, Aerospaceen_US
dc.subject.pqcontrolledEngineering, Generalen_US
dc.subject.pquncontrolledcoflowen_US
dc.subject.pquncontrolleddiffusionen_US
dc.subject.pquncontrolledflameen_US
dc.subject.pquncontrolledmicrogravityen_US
dc.subject.pquncontrolledsmokeen_US
dc.subject.pquncontrolledsooten_US
dc.titleSMOKE POINTS OF MICROGRAVITY AND NORMAL GRAVITY COFLOW DIFFUSION FLAMESen_US
dc.typeThesisen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Dotson_umd_0117N_10980.pdf
Size:
2.12 MB
Format:
Adobe Portable Document Format
Download

Collections

UMD Theses and Dissertations
Fire Protection Engineering Theses and Dissertations