Gaz Türbinli Motorların Yanma Veriminin Emisyon Verileri Kullanılarak Matris Yöntemi ile Çözümü ve Uygulaması

Öz

Gaz türbinli motorlar, tasarım aşaması tamamlandıktan sonra yanma odası, montaj öncesi ve montaj sonrası testlere tabi tutulur. Yanma odasının farklı noktalarından ölçülen basınç, sıcaklık, debi ve çıkış noktasından ölçülen emisyon değerleri, tasarım parametreleri ve farklı yazılımlar kullanılarak elde edilen katı model analiz sonuçlarıyla kıyaslanarak tasarım doğrulama çalışmaları gerçekleştirilir. Bu anlamda ölçülmüş olan emisyon verileri, yanma verimliliğinin belirlenmesi için önem taşımaktadır. Bu çalışma kapsamında, ölçülen emisyon değerleri kullanılarak yanma veriminin hesabına ilişkin bir matris çözüm yöntemi geliştirilmiştir. Geliştirilen bu matris çözüm yöntemi kullanılarak, bir turbofan tipi uçak motorunun yanma verimi hesabı gerçekleştirilmiş ve yanma verim değeri %99,93 olarak bulunmuştur

Anahtar Kelimeler

• Gaz türbini, emisyon, yanma verimi, uçak motoru, turbofan

MATRIX METHOD TO CALCULATE COMBUSTION EFFICIENCY OF GAS TURBINE ENGINES WITH THE AID OF EMISSION DATA AND APPLICATION

Abstract

Gas turbine engines are operated under test conditions before and after assembly when design process is over. Pressure, temperature, mass flow value measured from different stations and emission data measured from outlet of exhaust are compared with solid model analysis results obtained by using various software and off-design parameters for validation. In this sense, measured emission data is significant to determine combustion efficiency. In this study, a novel matrix solution method is developed to calculate combustion efficiency with the aid of emission data. Combustion efficiency of a turbofan engine is calculated by using developed matrix solution method and obtained to be 99.93%

Keywords

• Gas turbine, emission, combustion efficiency, aero engine, turbofan

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