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Engine fuel characterisation based on excitation-emission spectra

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EN
Abstrakty
EN
Considering that correctly functioning of diesel ship engine depends on the composition of applied fuel, it is necessary to easy characterise fuels in terms of quality. Therefore taking into account above mentioned, appropriate analyses have been undertaken and the intention of this article is to inform that characterisation of fuel used in marine transport can be described by the specific parameter based on fluorescence excitation-emission spectroscopy. Therefore, for this study fuel typically used in ship engine – Diesel fuel – is considered. For analysis, Diesel fuel dissolved in n-hexane was used and several oil samples for various oil concentration were prepared. Spectrofluorometer Aqualog Horiba was used to record the excitation-emission spectra (EEMs). EEM spectra determined for each of oil concentration were described by two specific peaks for this kind of oil. Based on registered EEMs, the specific indicator - the wavelength-independent fluorescence maximum – coded in two specific wavelengths – excitation and emission, respectively, described as Exmax/Emmax was determined for considered oil concentration. Obtained results indicate the independence from oil concentration only for one detected peak described by Exmax/Emmax = 240/332. Taking into account obtained results, we can conclude that the wavelength-independent fluorescence maximum detected for excitation wavelength at 240 nm corresponds to the emission wavelength at 332 nm due to the independence from the oil concentration, could be a good indicator to characterise this kind of oil – Diesel fuel. We can conclude that the changes in the composition of fuel could be detected in EEM spectra by the change of detected peaks position.
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Twórcy
  • Gdynia Maritime University Department of Physics at Faculty of Marine Engineering Morska Street 81-87, 81-225 Gdynia, Poland tel.: +48 58 6901588, fax: +48 58 6206701
autor
  • Gdynia Maritime University Department of Physics at Faculty of Marine Engineering Morska Street 81-87, 81-225 Gdynia, Poland tel.: +48 58 6901588, fax: +48 58 6206701
Bibliografia
  • [1] BP Australia ltd., Long term storage of diesel, ADF 1403.doc, http://www.bp.com/content/dam/bp-country/en_au/media/fuel-news/long-term-storage-diesel.pdf.
  • [2] Baszanowska, E., Zielinski, O., Otremba, Z., Toczek, H., Influence of oil-in-water emulsions on fluorescence properties as observed by excitation-emission spectra, Journal of the European Optical Society – Rapid Publications, Vol. 8, pp. 13069.1-13069.5, 2013.
  • [3] Baszanowska, E., Otremba, Z., Spectral signatures of fluorescence and light absorption to identify crude oils found in the marine environment, Journal of the European Optical Society – Rapid Publications, Vol. 9, pp. 14029.1-14029.7, 2014.
  • [4] Frank, U., A review of fluorescence spectroscopic method for oil spill source identification, Toxicological & Environmental Chemistry Reviews, Vol. 2, Iss. 3, pp. 163-185, 1978.
  • [5] Meier, D., Voß, D., Zielinski, O., Heuermann, R., Horn, M., Krause, S.-E., Machulik, U., Munderloh, K., Oest, J., Spitzy, A., Development of an online detection system for determination and characterization of dissolved organic substances in water via fluorescence spectroscopy, 3rd EOS Topical Meeting on Blue Photonics® – Optics in the Sea (Blue Photonics 3), Texel, 2013.
  • [6] Zielinski, O., Busch, J. A., Cembella, A. D., Daly, K. L., Engelbrektsson, J., Hannides, A. K., Schmidt, H., Detecting marine hazardous substances and organisms: sensors for pollutants, toxins and pathogens, Ocean Science, Vol. 5, pp. 329-349, 2009.
Uwagi
PL
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).
Typ dokumentu
Bibliografia
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