Abstract

This paper presents the first, to our knowledge, direct measurement of aerosol produced by an aluminized solid rocket propellant (SRP) fire on the ground. Such fires produce aluminum oxide particles small enough to loft high into the atmosphere and disperse over a wide area. These results can be applied to spacecraft launchpad accidents that expose spacecraft to such fires; during these fires, there is concern that some of the plutonium from the spacecraft power system will be carried with the aerosols. Accident-related lofting of this material would be the net result of many contributing processes that are currently being evaluated. To resolve the complexity of fire processes, a self-consistent model of the ground-level and upper-level parts of the plume was determined by merging ground-level optical measurements of the fire with lidar measurements of the aerosol plume at height during a series of SRP fire tests that simulated propellant fire accident scenarios. On the basis of the measurements and model results, the Johns Hopkins University Applied Physics Laboratory (JHU/APL) team was able to estimate the amount of aluminum oxide (alumina) lofted into the atmosphere above the fire. The quantification of this ratio is critical for a complete understanding of accident scenarios, because contaminants are transported through the plume. This paper provides an estimate for the mass of alumina lofted into the air.

© 2016 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Airborne lidar measurements of smoke plume distribution, vertical transmission, and particle size

Edward E. Uthe, Bruce M. Morley, and Norman B. Nielsen
Appl. Opt. 21(3) 460-463 (1982)

Quantitative, three-dimensional imaging of aluminum drop combustion in solid propellant plumes via digital in-line holography

Daniel R. Guildenbecher, Marcia A. Cooper, Walter Gill, Howard Lee Stauffacher, Michael S. Oliver, and Thomas W. Grasser
Opt. Lett. 39(17) 5126-5129 (2014)

Measurement of water mist particle size generated by rocket launch using a two-wavelength multi-static lidar

Yoshitaka Jin, Nobuo Sugimoto, Tomoaki Nishizawa, Taisuke Yoshitomi, Atsushi Sawada, Wataru Sarae, Akito Hattori, Yoshihiro Yamasaki, Hajime Okamoto, and Kaori Sato
Appl. Opt. 58(23) 6274-6279 (2019)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (16)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (6)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription