DESAIN ENGINE CONE DAN KOMPONEN AFTERBURNER UNTUK MINI ELECTRIC JET ENGINE

RAHMAWATI WAHYU WIBAWA, RANIA (2018) DESAIN ENGINE CONE DAN KOMPONEN AFTERBURNER UNTUK MINI ELECTRIC JET ENGINE. Skripsi thesis, Institut Teknologi Dirgantara Adisutjipto.

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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%.

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