Optimum Turbofan Engine Performance Through Variation of Bypass Ratio

The desire for higher engine efficiency has resulted in the evolution of aircraft gas turbine engines from turbojets, to low bypass ratio, first generation turbofans, to today’s high bypass ratio turbofans. It is possible that future designs will continue this trend, leading to very-high or ultra...

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Main Author: Marwan Fakhri Basher
Format: Article
Language:Arabic
Published: Mustansiriyah University/College of Engineering 2013-03-01
Series:Journal of Engineering and Sustainable Development
Subjects:
Online Access:https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1097
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author Marwan Fakhri Basher
author_facet Marwan Fakhri Basher
author_sort Marwan Fakhri Basher
collection DOAJ
description The desire for higher engine efficiency has resulted in the evolution of aircraft gas turbine engines from turbojets, to low bypass ratio, first generation turbofans, to today’s high bypass ratio turbofans. It is possible that future designs will continue this trend, leading to very-high or ultra-high bypass ratio engines . The most significant impact of the design changes was a reduction in the aircraft weight and block fuel penalties incurred with low fan pressure ratio, ultra-high bypass ratio designs. This enables lower noise levels to be pursued (through lower fan pressure ratio) with minor negative impacts on aircraft weight and fuel efficiency. Regardless of the engine design selected, the results of this study indicate the potential for the advanced aircraft to realize substantial improvements in fuel efficiency, emissions, and noise compared to the current engines in this size class  
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spelling doaj.art-ea455c8958724a00bad2740845fd9cef2022-12-22T04:12:00ZaraMustansiriyah University/College of EngineeringJournal of Engineering and Sustainable Development2520-09172520-09252013-03-01171Optimum Turbofan Engine Performance Through Variation of Bypass RatioMarwan Fakhri Basher0Department of Mechanical Engineering, University of Mosul, Ninawa, Iraq The desire for higher engine efficiency has resulted in the evolution of aircraft gas turbine engines from turbojets, to low bypass ratio, first generation turbofans, to today’s high bypass ratio turbofans. It is possible that future designs will continue this trend, leading to very-high or ultra-high bypass ratio engines . The most significant impact of the design changes was a reduction in the aircraft weight and block fuel penalties incurred with low fan pressure ratio, ultra-high bypass ratio designs. This enables lower noise levels to be pursued (through lower fan pressure ratio) with minor negative impacts on aircraft weight and fuel efficiency. Regardless of the engine design selected, the results of this study indicate the potential for the advanced aircraft to realize substantial improvements in fuel efficiency, emissions, and noise compared to the current engines in this size class  https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1097turbofan enginesbypass rationoise reductionspecific thrustSpecific fuel consumption
spellingShingle Marwan Fakhri Basher
Optimum Turbofan Engine Performance Through Variation of Bypass Ratio
Journal of Engineering and Sustainable Development
turbofan engines
bypass ratio
noise reduction
specific thrust
Specific fuel consumption
title Optimum Turbofan Engine Performance Through Variation of Bypass Ratio
title_full Optimum Turbofan Engine Performance Through Variation of Bypass Ratio
title_fullStr Optimum Turbofan Engine Performance Through Variation of Bypass Ratio
title_full_unstemmed Optimum Turbofan Engine Performance Through Variation of Bypass Ratio
title_short Optimum Turbofan Engine Performance Through Variation of Bypass Ratio
title_sort optimum turbofan engine performance through variation of bypass ratio
topic turbofan engines
bypass ratio
noise reduction
specific thrust
Specific fuel consumption
url https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1097
work_keys_str_mv AT marwanfakhribasher optimumturbofanengineperformancethroughvariationofbypassratio