Publication de 6 numéros par an
ISSN Imprimer: 2150-766X
ISSN En ligne: 2150-7678
Indexed in
EFFECTS OF ROCKET EXHAUST ON THE LAUNCH SITE ENVIRONMENT AND STRATOSPHERIC OZONE
RÉSUMÉ
Three independent studies regarding the environmental impacts of testing and launching rockets were published in the 1991−1992 time frame. Each of these studies concluded that these impacts are quite minor. Since these studies were published, there has been additional work in exhaust cloud modeling, ozone depletion predicted by atmospheric models, and in alternate propellant development.
This paper discusses the conclusions of the three earlier studies in light of the most recent data. The long term impact of launching nine Shuttles and three Titan IV rockets annually is predicted to be a global stratospheric ozone depletion of 0.006 - 0.02 percent. Local and regional effects are predicted to be higher.
While a considerable amount of work has been done to understand the impacts of rockets on the environment near the launch site, one of the potentially toxic species produced in the atmosphere during a rocket launch, NO2, has been given little treatment. Recent calculations show that NO2 produced from afterburning and atmospheric oxidation of some liquid rocket exhaust clouds may be of comparable toxicity to HCl plus NO2 from some solid rockets.
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Ruesch Morgan, Son Steven F., Goldenstein Christopher S., Characterization of Aluminum-Lithium Composite-Propellant Flames via Laser Absorption Spectroscopy, AIAA Scitech 2021 Forum, 2021. Crossref