A modeling investigation of suppressant distribution from a prototype solid-propellant gas-generator suppression system into a simulated aircraft Cargo Bay

S. S. Yoon, H. Y. Kim, J. C. Hewson, J. M. Suo-Anttila, D. J. Glaze, P. E. DesJardin

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)

    Abstract

    One new technology for fire suppressant distribution in total-flooding applications is the solid-propellant gas-generator (SPGG) technology. This article presents experimental and modeling studies of one such prototype system in order to better understand observations in the testing of this system. This particular SPGG system generates fine particles that act to suppress any fire in conjunction with inert gases also generated in the SPGG system. Initial conditions for the simulations are obtained from the available measurements of the prototype system. The modeling provides key information related to the distribution of the particles and their potential effectiveness as a fire suppressant. The primary variable in the SPGG design as identified in the initial measurements, also presented here, was the particle size, with typical particle sizes being measured at 2 μ15 m. The key modeling result is that there is a tradeoff between the most uniform distribution of particles and the available surface-to-volume ratio for chemical suppression. Information is also provided regarding the thermal dissipation from the SPGG system.

    Original languageEnglish
    Pages (from-to)1011-1023
    Number of pages13
    JournalDrying Technology
    Volume25
    Issue number6
    DOIs
    Publication statusPublished - 2007 Jun

    Bibliographical note

    Funding Information:
    The authors are grateful for the financial support provided by the Goodrich Corporation for this research. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company for the United States Department of Energy’s National Nuclear Security Administration under contract DE-AC04-94AL85000. The first author acknowledges the partial support of this research provided by the Carbon Dioxide Reduction & Sequestration (CDRS) R&D Center of Korea.

    Keywords

    • Distribution
    • Fire suppression
    • KBr
    • Stochastic separated flow mode
    • Suppressant

    ASJC Scopus subject areas

    • General Chemical Engineering
    • Physical and Theoretical Chemistry

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