TY - GEN
T1 - Experimental and Numerical Investigation of Combustion and Emissions Characteristics in a Drone Jet Engine Fueled with Jet-A
AU - Soloiu, Valentin
AU - McAfee, John William
AU - Ilie, Marcel
AU - Carapia, Cesar
AU - Weaver, Amanda
AU - Brant, Austin
N1 - Publisher Copyright:
© 2023, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2023
Y1 - 2023
N2 - With an increasing global warming effect, there is an increasingly focused effort to quantify the combustion and emissions phenomena occurring in turbine engines used in the aerospace industry. This study seeks to investigate the viability of a model using experimentally determined thermochemical and NASA polynomials developed for conventional and alternative fuels. These material properties were used to accurately depict the temperature, pressure, emissions and flow characteristics in a CFX simulation of a small-scale drone engine. This numerical data was compared to physical experiments to validate the numerical model. The experimental trials were conducted using a turbojet with multiple integrated sensors to measure temperature, pressure, fuel flow rate, engine speed, and thrust in real-time using high data acquisition unit at engine speeds between 60,000 and 70,000 rpms. The emission results were collected using an MKS Multigas Emissions for carbon monoxide (CO), carbon dioxide (CO2), water vapor (H2O), and nitrogen oxides (NOx). The results found the numerical simulation within 10% of the experimental temperature in the upstream temperature probe location (compressor exit and turbine inlet) while resulting in high percentage error in the turbine exit and exhaust nozzle sections. The turbulent kinetic energy (TKE) was seen to be maximum around the areas of impeded flow, included the turbine stage and alongside the exhaust nozzle struts. The emissions of the combustion were found for carbon monoxide (CO), carbon dioxide (CO2), water vapor (H2O), and nitrogen oxides (NOx), and showed that for a 16.67% increase in engine speed, there was emissions increase of 20.84%, 2.03%, 0.75%, and 26.52% respectively.
AB - With an increasing global warming effect, there is an increasingly focused effort to quantify the combustion and emissions phenomena occurring in turbine engines used in the aerospace industry. This study seeks to investigate the viability of a model using experimentally determined thermochemical and NASA polynomials developed for conventional and alternative fuels. These material properties were used to accurately depict the temperature, pressure, emissions and flow characteristics in a CFX simulation of a small-scale drone engine. This numerical data was compared to physical experiments to validate the numerical model. The experimental trials were conducted using a turbojet with multiple integrated sensors to measure temperature, pressure, fuel flow rate, engine speed, and thrust in real-time using high data acquisition unit at engine speeds between 60,000 and 70,000 rpms. The emission results were collected using an MKS Multigas Emissions for carbon monoxide (CO), carbon dioxide (CO2), water vapor (H2O), and nitrogen oxides (NOx). The results found the numerical simulation within 10% of the experimental temperature in the upstream temperature probe location (compressor exit and turbine inlet) while resulting in high percentage error in the turbine exit and exhaust nozzle sections. The turbulent kinetic energy (TKE) was seen to be maximum around the areas of impeded flow, included the turbine stage and alongside the exhaust nozzle struts. The emissions of the combustion were found for carbon monoxide (CO), carbon dioxide (CO2), water vapor (H2O), and nitrogen oxides (NOx), and showed that for a 16.67% increase in engine speed, there was emissions increase of 20.84%, 2.03%, 0.75%, and 26.52% respectively.
UR - http://www.scopus.com/inward/record.url?scp=85199546369&partnerID=8YFLogxK
U2 - 10.2514/6.2023-1065
DO - 10.2514/6.2023-1065
M3 - Conference article
AN - SCOPUS:85199546369
SN - 9781624106996
T3 - AIAA SciTech Forum and Exposition, 2023
BT - AIAA SciTech Forum and Exposition, 2023
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - AIAA SciTech Forum and Exposition, 2023
Y2 - 23 January 2023 through 27 January 2023
ER -