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EcoGlide
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
2012 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Abstract

The aviation industry is responsible for about 2% of the world's total CO

2 emissions, and this number is expected to grow due to expected increases in traffic. The motive of this project was to design parts of an environmentally friendly aircraft. The result was a sailplane with an electric engine, driven by rechargeable batteries. A high speed PM brushless engine was chosen and its performance was simulated. Using XFLR5, airfoils were analyzed and chosen for the main wing. The wing was designed along with horizontal stabilizer and tail to decide the sailplanes glide ratio. The engine had enough power, 55kW, for very high altitudes. Two battery systems were chosen, one light and one heavier. The lighter battery system managed to provide 18 minutes of engine time. The heavier provide a total of 28 minutes. The sailplane glide ratio is estimated to be 127.

Abstract [sv]

Sammanfattning Flygindustrin står för ungefär 2% av världens totala CO2 utsläpp, och denna siffra förväntas öka i och med ökad flygtrafik. Målet med detta projekt var att designa delar av ett miljövänligt flygplan. Resultatet blev ett glidflygplan med en elektrisk motor, som drivs av laddningsbara batterier. En "high speed PM brushless" motor valdes för flygplanet och dess prestanda simulerades. Med hjälp av programmet XFLR5 analyserades vingprofiler och den bästa valdes för vingen. I programmet modellerades även horisontella stabilisatorn och fenan för att bestämma flygplanets glidratio. Motorn visade sig ha mer än tillräckligt med motorkraft, 55kW, för de höjder som det är tänkt att planet ska flyga i. Två batterisystem valdes, ett lättare och ett tyngre. Det lättare gav en operationstid för motorn på 18 minuter medans det tyngre systemet gav 28 minuter. Glidflygplanets slutgiltiga glidratio blev 127.

Place, publisher, year, edition, pages
2012. , 38 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-102945OAI: oai:DiVA.org:kth-102945DiVA: diva2:585731
Uppsok
Technology
Supervisors
Available from: 2013-01-15 Created: 2012-09-28 Last updated: 2013-01-15Bibliographically approved

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