Derated Thrust: Method Analysis for Optimizing Turbofan Engine Takeoff Performances (SFC, EGT) Due to Lower Maximum Takeoff Weight (MTOW) Requirement

R. F. Irsyadi, W. Nirbito

Research output: Contribution to journalConference articlepeer-review

Abstract

Reduced thrust or derate has been practiced commonly nowadays as a standard procedure of takeoff. Since power is being used at maximum during takeoff phase, the practice has many benefits for the operation of aircraft. Not only it reduced fuel consumption during the takeoff phase, but also reduced engine's wear and tear that caused by stress and a very high temperature. Exhaust Gas Temperature (EGT) is one of the most important parameters that used to monitor the engine deterioration. There is a definite correlation between reducing takeoff thrust and EGT reduction, where both values are contradicting one another. However, there must be some calculation by the flight crew on how much percentage of derate is eligible prior to takeoff. The goal of this paper is to find the effectiveness of derate to reduce EGT in order to improve performance, prolong engine life and reduce operating costs of the operators.

Original languageEnglish
Article number012007
JournalIOP Conference Series: Materials Science and Engineering
Volume685
Issue number1
DOIs
Publication statusPublished - 22 Nov 2019
Event3rd International Conference on Aerospace Technology, Communications and Energy Systems, ATCES 2019 - Nanjing, China
Duration: 26 Sep 201929 Sep 2019

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