FÜZELERDE KULLANILAN KÜÇÜK BİR GAZ TÜRBİNLİ MOTORUN DENEY DÜZENEĞİ, TESTİ VE PERFORMANS ÖLÇÜMÜ

Abstract

   Bu çalışmada, deneysel küçük bir turbojet motor test edilerek, motorun performans modellemesi elde edilmiştir. Deneysel turbojet motor, bir havaalığı, santrafüj kompresör, ters akışlı yanma odası, eksenel akışlı türbin ve egzozdan oluşmaktadır. Turbojet motor, test hücresinde farklı devirlerde (RPM) test edilerek, itki (t), özgül yakıt sarfiyatı (SFC), yakıt debisi (FF) ve egzoz gaz sıcaklığı (EGT) arasındaki değişimler incelenerek matematiksel bağıntılar elde edilmiştir. Turbojet deneyleri, 25.000<RPM<48.500 ve 130 N<t<1.260 N arasında gerçekleştirilmiştir. Performans parametreleri arasındaki ilişkiler, güvenirlik değerleriyle verilmiştir. Benzer füze tasarımı çalışmalarında enerji sağlayıcı olarak bir turbojet motoru seçilmesi durumunda, bu çalışmanın model olarak alınabileceği öngörülmektedir.

Keywords

• Turbojet,itki,bremze,küçük gaz türbini

EXPERIMENTAL SET-UP, TESTING AND PERFORMANCE MODELING OF A TURBOJET ENGINE FOR TARGET DRONE APPLICATIONS

Abstract

   In this paper, experimental turbojet engine is tested and performed performance modelling of turbojet engine. The main components of this engine include an inlet bell mouth, a centrifugal compressor, a reverse flow combustion chamber, an axial flow turbine and an exhaust. The engine is tested under various shaft speed (RPM) for yielding mathematical correlation between thrust force (t), specific fuel consumption (SFC), fuel flow (FF) and exhaust gas temperature. Testing upper and lower limits for shaft speed and thrust are under 25,000< RPM <48,500 and 130 N<t <1,260 N, respectively. Each correlation equations are given with R-squared value. It is expected that this study can be able to a model related to future design work in case of selecting turbojet as an energy supplier of a target drone.

Keywords

• Turbojet,propulsion,test-cell,small gas turbine

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