Accession Number : ADA113458

Title :   NRL 324-cu m Chamber Pressurization Experiment: Pressurant Concentration Histories with and without Obstacles to Flow.

Descriptive Note : Final rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s) : Stone,J P ; Alexander,J I ; Street,T T ; St Aubin,H J ; Williams,F W

PDF Url : ADA113458

Report Date : 15 Mar 1982

Pagination or Media Count : 106

Abstract : Nitrogen pressurization of pressurizable enclosures is proposed for fire suppression. Implementation requires pressurant distribution information. Distribution histories, with and without flow obstacles are reported as inferred from temperature measurements observed during pressurization of a 324 cu. m fire chamber from 1 to 2 atmospheres (101.3 to 202.6 kPa). For pressurant injection times of 10 and 30 s, pressurant and resident gases were judged to be well mixed within 1.6 injection times, and no grossly unmixed pockets were observed. (Author)

Descriptors :   *Pressurization, Fire fighting, Fire suppression, Nitrogen, Distribution, Chambers, Test facilities, Pressure vessels, Gases, Mixing, History

Subject Categories : Safety Engineering
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE