Spray characteristics of emulsified biodiesel-diesel blends in a constant volume combustion chamber
Tezel, Yusufcan, author.

Spray characteristics of emulsified biodiesel-diesel blends in a constant volume combustion chamber

Tezel, Yusufcan, author.

Yazar Ek Girişi
Tezel, Yusufcan, author.

Fiziksel Tanımlama
xii, 92 leaves: charts;+ 1 computer laser optical disc.

Over the last decades, various studies have been carried out by the researchers to find out an alternative fuel that can overcome emission problems caused by diesel fuel which affect the environment and human health significantly. Due to emulsified biodiesel-diesel blend (EBB) fuels are being a possible alternative fuel for diesel, in this study, it was aimed to investigate the macroscopic spray parameters such as spray penetration length and cone angle of different EBB fuels, namely B20W15 and B20W5, containing 15% and 5% water by volume, respectively. In order to examine the spray characteristics of B20W15 and B20W5, the experiments were carried out by means of constant volume combustion chamber and utilizing shadowgraph technique with a high-speed camera. Experiments were performed with 600 bar and 800 bar injection pressure while the ambient pressure was 0 bar, 5 bar and 10 bar, respectively. After experiments were fulfilled, the recorded images of test fuels were processed via ImageJ program. The results showed that stability of the emulsion can be obtained when HLB value was 8 and surfactant concentration was 5% by volume. It was understood that increment in water concentration in the emulsion caused deterioration in emulsion stability while it led higher viscosity, higher density, longer spray penetration lengths and narrower cone angles. It was observed that B20W5 resulted wider spray cone angles and shorter spray penetration lengths than B20W15 under 0,5 and 10 bar chamber pressure with injections pressures of 600 and 800 bar. Also, it was understood that both EBB lead longer spray penetration lengths and narrower spray cone angles compared to reference diesel while they lead vice versa compared to reference biodiesel. The reason of spray geometry difference between diesel and EBB fuels can be associated with the higher viscosity and density of EBB fuels compared to diesel. As a result, considering that B20W5 reduce the use of fossil fuels, and no significant difference compared to diesel in terms of spray geometry, it can be said that B20W5 may be a promising alternative fuel for the future.

Konu Başlığı
Diesel motor -- Combustion.
Spray combustion.
Biodiesel fuels.

Yazar Ek Girişi
Özkol, Ünver,

Tüzel Kişi Ek Girişi
İzmir Institute of Technology. Mechanical Engineering

Tek Biçim Eser Adı
Thesis (Master)--İzmir Institute of Technology:Mechanical Engineering
İzmir Institute of Technology: Mechanical Engineering --Thesis (Master).

Elektronik Erişim
Access to Electronic Versiyon.

LibraryMateryal TürüDemirbaş NumarasıYer NumarasıDurumu/İade Tarihi
IYTE LibraryTezT002270TJ797 .T356 2020Tez Koleksiyonu