eprintid: 4206
rev_number: 16
eprint_status: archive
userid: 1
dir: disk0/00/00/42/06
datestamp: 2003-12-12 16:41:15
lastmod: 2014-04-03 13:26:19
status_changed: 2012-08-14 15:10:13
type: doctoralThesis
metadata_visibility: show
creators_name: Katragkou, Eleni
title: Aircraft based measurements of atmospheric Sulfur Dioxide and ground based measurements of gaseous Sulfur (VI) in the simulated internal flow of an aircraft engine: Implications for atmospheric aerosol formation
title_de: Flugzeugmessungen von Schwefeldioxid und Bodenmessungen von Schwefelsäure innerhalb einer Fugzeuggasturbine: Auswirkung auf die Bildung von atmospärischen Aerosol
ispublished: pub
subjects: ddc-530
divisions: i-851340
adv_faculty: af-13
cterms_swd: Schwefelemission
cterms_swd: Atmosphärisches Aerosol
abstract: This dissertation is concerned with aircraft based measurements of sulfur dioxide in the atmosphere  and gaseous sulfuric acid measurements in the internal flow of an aircraft gas turbine engine. Both trace gases promote the formation and growth of sulfate aerosol particles which play an important role in the chemistry of the troposphere and perhaps even in climate.  An Ion Trap Mass Spectrometer specially adapted for in flight measurements was employed in the aircraft campaign. Several high resolution altitude profiles in polluted and un-polluted tropospheric air were obtained and implications on particle formation and growth was examined. Sulfuric acid was also measured in the simulated internal flow of an aircraft engine with the Ion Trap Mass Spectrometer. The sulfur conversion efficiency epsilon was determined for three different fuel sulfur contents and two combustor operating conditions.  The results suggest that modern aircraft engines have conversion efficiencies in the range of a few percent  (2.3 ±1.2 %) and that modern engines have larger conversion efficiencies compared to the old engines. Even such low epsilon allow the formation and growth of volatile aerosol particles and also sulfuric acid induced soot activation in aircraft wakes, which initiate formation of contrails and perhaps even cirrus clouds. 
abstract_translated_lang: ger
date: 2003
date_type: published
id_scheme: DOI
id_number: 10.11588/heidok.00004206
ppn_swb: 1643580183
own_urn: urn:nbn:de:bsz:16-opus-42069
date_accepted: 2003-11-26
advisor: HASH(0x55fc36baf968)
language: eng
bibsort: KATRAGKOUEAIRCRAFTBA2003
full_text_status: public
citation:   Katragkou, Eleni  (2003) Aircraft based measurements of atmospheric Sulfur Dioxide and ground based measurements of gaseous Sulfur (VI) in the simulated internal flow of an aircraft engine: Implications for atmospheric aerosol formation.  [Dissertation]     
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/4206/1/Abstract.pdf
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/4206/2/diss_katragkou.pdf
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/4206/3/titel.pdf