Institusion
INSTITUT TEKNOLOGI DIRGANTARA ADISUTJIPTO
Author
RAHMAWATI WAHYU WIBAWA, RANIA
Subject
T Technology (General)
Datestamp
2024-07-29 02:17:46
Abstract :
Electric Ducted Fan (EDF) is a small-size jet engine model driven by
electrically electric motors and serves to produce thrust. Mini Electric Jet Engine
is a combination of EDF with the addition of a combustion system that resembles
the afterburner engine concept. The purpose of this research is to obtain the
configuration, geometry of cone engine and afterburner components for mini
electric jet engine and to obtain the value of air flow velocity increase on mini
electric jet engine with the addition of engine.
This Mini Electric Jet Engine applies a concept that resembles the
afterburner system in the actual turbojet engine. This study used a numerical
method with CATIA V5R20 software to obtain the configuration and geometry of
the mini electric jet engine and ANSYS for value of its speed increase. Variations is
used on modeling of engine cone afterburner were 2 variations of form and 3
variations of length i.e. 192 mm, 242 mm, and 292 mm on each variations of form.
The diameter of the mini electric jet engine inlet is 70 mm with a 56 mm
outlet. The overall length of a mini electric jet engine is 250 mm. The outer diameter
of the fuel pipe is 3 mm with a pipe thickness of 0.5 mm and has a dimension of 55
mm in length and a circular section with a diameter of 33 mm. The diameter of the
flame holder on the part attached to the motor is 28 mm and 33 mm on the other
side along the 15 mm long dimension is 50 mm with a thickness of 0.3 mm. The
results showed that the addition of engine cone afterburner on the Mini Electric Jet
Engine can result in increasing speed at the outlet part more than 7 m / s with the
highest percentage approaching 22%.