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          Institute: MPI für Kernphysik     Collection: Physics of Atmospheric Molecular Processes     Display Documents



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ID: 59919.0, MPI für Kernphysik / Physics of Atmospheric Molecular Processes
First gaseous Sulfur (VI) measurements in the simulated internal flow of an aircraft gas turbine engine during project PartEmis
Authors:Katragkou, Eleni; Wilhelm, Stefan; Arnold, Frank; Wilson, C.
Language:English
Date of Publication (YYYY-MM-DD):2004-01-30
Title of Journal:Geophysical Research Letters
Journal Abbrev.:Geophys. Res. Lett.
Volume:31
Issue / Number:2
Sequence Number of Article:2117
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:Gaseous S(VI) (SO3+H2SO4) has been measured by chemical ionization mass spectrometry (CIMS) in the simulated internal flow of an aircraft gas turbine in a test rig at ground level during the PartEmis 2002 campaign. Building on S(VI) and calculated total sulfur ST the abundance ratio ε=S(VI)/ST was determined. The measurements to be reported here were made at two sampling points, for two engine test conditions representative of old and modern aircraft cruise and for a fuel sulfur content FSC=1270 ppm. For both cruise conditions the measured ε increased with increasing exhaust age from the high pressure to the low pressure stage. For each pressure stage ε was higher in the modern cruise condition. The maximum ε (2.3±1.2 %) was obtained for modern cruise and the low pressure stage. Our present data suggest that modern engines have a somewhat higher conversion efficiencies than old engines.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Group K. Mauersberger/Atmospheric Trace Gas Environmental Physics (F. Arnold)
External Affiliations:QinetiQ, Centre for Aerospace Technology, Farnborough, Great Britain
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