This study investigates the influence of different operating conditions including fuel temperature, droplet sizes, fuel injector and type of fuel on combustion characteristics of a simple cylindrical combustion chamber. Alternative fuels namely Jatropha Bio-synthetic Paraffinic Kerosene (JSPK), Camelina Bio-synthetic Paraffinic Kerosene (CSPK), mixture of 50% JSPK with 50% Jet-A (50JSPK/50Jet-A) and mixture of 50% CSPK with Jet-A (50CSPK/50Jet-A) are used while Jet-A is used as baseline fuel. At every cases, droplet sizes are varied at 20–40 µm, fuel temperatures are varied from 300 to 500 K and the spray half cone angles are varied from 30° to 50°. Results obtained show that smaller droplet size will lead to high combustion rate and thus provide better efficiency whereas higher fuel temperature produced better evaporation in the chamber. At higher spray half cone angle, shortest penetration length is produced and took shortest time for droplets to reduce its diameter. Among the four tested fuels, 50JSPK/50Jet-A and 50CSPK/50Jet-A have the shortest time to evaporate which indicated that both fuel mixtures have higher evaporation rate due to lower boiling point and density.
Evaluation of Combustion Characteristics on Simple Cylindrical Combustion Chamber for Different Operating Conditions and Alternative Fuels
Lect.Notes Mechanical Engineering
Proceedings of International Conference of Aerospace and Mechanical Engineering 2019 ; Kapitel : 26 ; 317-327
13.06.2020
11 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Spray penetration , Alternative fuels , Droplet lifetime , Fuel properties Engineering , Aerospace Technology and Astronautics , Vibration, Dynamical Systems, Control , Fluid- and Aerodynamics , Quality Control, Reliability, Safety and Risk , Engine Technology , Engineering Thermodynamics, Heat and Mass Transfer
Alternative Fuels and Combustion Problems
AIAA | 1978
|Combustion chamber characteristics
Engineering Index Backfile | 1934
|