Accession Number : ADA271326


Title :   Parameters Affecting Hydrogen Chloride Measurements


Descriptive Note : Final rept.,


Corporate Author : AEROSPACE CORP LOS ANGELES CA


Personal Author(s) : Martin, L. R. ; Abul-Haj, N. A. ; Brenner, Douglas M. ; Westberg, Karl R.


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA271326


Report Date : JUN 1993


Pagination or Media Count : 43


Abstract : The launching of solid rocket boosters releases numerous gases, including hydrogen chloride. Monitoring the concentrations of these gases and predicting their atmospheric transport is required for safety reasons and for compliance with environmental laws. Monitoring of these gases is difficult because they are hydrophilic and tend to condense on atmospheric aerosols. Once such gases are condensed in the atmospheric aerosols, they will not appear on gas-phase sensors unless provision iB made to evaporate the aerosols. Transport of the gases will also be governed by the chemistry in the aerosols and movement of the aerosols in the atmosphere, as opposed to the gas-phase chemistry alone. The objective of this project is to investigate the behavior of hydrogen chloride in the presence of atmospheric aerosols. The thermodynamics of HCl in the gas and liquid phase will be reviewed, and kinetics of mass transfer, diffusivity, and sticking coefficients on water of HCl will be measured. The evaporation of atmospheric aerosols will also be discussed. Hydrogen chloride, Aerosol, Diffusivity, Sticking, Condensation, Atmospheric chemistry, Laser fluorescence, Hydrophilic, Humid air, Water, Salt water


Descriptors :   *MONITORING , *ATMOSPHERIC CHEMISTRY , *EXHAUST GASES , *HYDROGEN CHLORIDE , AEROSOLS , LASER INDUCED FLUORESCENCE , AIR , THERMODYNAMICS , PHASE , LIQUID PHASES , COEFFICIENTS , MASS TRANSFER , TRANSPORT , SAFETY , LAUNCHING , RELEASE , KINETICS , EVAPORATION , DIFFUSIVITY , BOOSTER ROCKET ENGINES , SALT WATER , CONDENSATION , ROCKET EXHAUST


Subject Categories : SOLID PROPELLANT ROCKET ENGINES
      AIR POLLUTION AND CONTROL


Distribution Statement : APPROVED FOR PUBLIC RELEASE