Određivanje utjecaja stupnja optočnosti na perfomanse mlaznog motora

undergraduate thesis

• Title (english): Effect of Bypass Ratio on Turbofan Engine Performance
• Author: David Petrin
• Mentor: Anita Domitrović (mentor)
• Committee member: Ernest Bazijanac (predsjednik povjerenstva)
• Committee member: Davor Franjković (član povjerenstva)
• Committee member: Tino Bucak (član povjerenstva)
• Granter: University of Zagreb; Faculty of Transport and Traffic Sciences; (Division of Aeronautics); (Department of Aeronautics); Zagreb
• Defense date and country: 2017-09-12, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Traffic and Transport Technology; Air Traffic

Abstract

Rad opisuje prednosti primjene zrakoplovnih turbomlaznih motora s visokim stupnjem optočnosti u odnosu na ostale tipove mlaznih motora. Princip rada optočnog mlaznog motora i pojedini dijelovi motora prikazani su na primjeru dvovratilnog optočnog mlaznog motora s visokim stupnjem optočnosti CFM56-B. Opisan je ciklus rada optočnog mlaznog motora i matematički su formulirani izrazi za potisak, iskoristivost, specifičnu potrošnju goriva i ostali parametri koji se koriste za procjenu rada mlaznih motora. Posebno je istaknut utjecaj stupnja optočnosti na performanse mlaznog motora. Prikazani su i mogući pravci razvoja optočnih mlaznih motora u svrhu smanjenja operativnih troškova i poboljšanja njihovih karakteristika.

Abstract (english)

This thesis describes advantages of application of high-bypass turbofan engines in reference to other turbo engine types. Working principle of the turbofan engine and individual engine components are explained using the example of two-spool, high-bypass turbofan engine CFM56-B. The working cycle of high-bypass gas turbine engine is described using mathematical model for thrust, efficiency, thrust specific fuel consumption and other parameters used for jet engine rating. Special attention is given to the effect of bypass ratio on jet engine performance. Probable future developments of high-bypass turbofan engines concerning reduced operational costs and performance improvements are described as well.

• Keywords: optočni mlazni motor; performanse mlaznog motora; matematički model; stupanj optočnosti; BPR
• Keywords (english): turbofan jet engine; jet engine performance; mathematical model; bypass ratio; BPR
• Language: croatian
• URN:NBN: urn:nbn:hr:119:405477
• Study programme: Title: Aeronautics; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka aeronautike (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka aeronautike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2017-09-19 12:17:24