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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Development of Surrogates for Aviation Jet Fuels

Nasseri, Seyed Ali 05 December 2013 (has links)
Surrogate fuels are mixtures of pure hydrocarbons that mimic specific properties of a real fuel. The use of a small number of pure compounds in their formulation ensures that chemical composition is well controlled, helping increase reproducibility of experiments and reduce the computational cost associated with numerical modeling. In this work, surrogate mixtures were developed for Jet A fuel based on correlations between fuel properties (cetane number, smoke point, threshold sooting index (TSI), density, viscosity, boiling point and freezing point) and the nuclear magnetic resonance (NMR) spectra of the fuel as a measure of the fuel's chemical composition. Comparison of the chemical composition and target fuel properties of the surrogate fuels developed in this work to a Jet A fuel sample and other surrogate fuels proposed in the literature revealed the superiority of these surrogate fuels in mimicking the fuel properties of interest.
2

Development of Surrogates for Aviation Jet Fuels

Nasseri, Seyed Ali 05 December 2013 (has links)
Surrogate fuels are mixtures of pure hydrocarbons that mimic specific properties of a real fuel. The use of a small number of pure compounds in their formulation ensures that chemical composition is well controlled, helping increase reproducibility of experiments and reduce the computational cost associated with numerical modeling. In this work, surrogate mixtures were developed for Jet A fuel based on correlations between fuel properties (cetane number, smoke point, threshold sooting index (TSI), density, viscosity, boiling point and freezing point) and the nuclear magnetic resonance (NMR) spectra of the fuel as a measure of the fuel's chemical composition. Comparison of the chemical composition and target fuel properties of the surrogate fuels developed in this work to a Jet A fuel sample and other surrogate fuels proposed in the literature revealed the superiority of these surrogate fuels in mimicking the fuel properties of interest.
3

A case study for Skukuza: Estimating biophysical properties of fires using EOS-MODIS satellite data / A field and remote sensing study to quantify burnt area and fire effects in South African semi-arid savannas / Auswertung von biophysikalischen Feuereigenschaften fuer das Studiengebiet Skukuza, Suedafrika, mittels Landsat ETM+ und MODIS Satellitendaten / Eine Feld- und Satellitengestuetzte-Studie zur Erfassung und Quantifizierung von Savannenbraende in Suedafrika

Landmann, Tobias 11 March 2003 (has links)
No description available.

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