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All Journal Proceeding of The International Conferences on Engineering Sciences
I.G.A. Uttariyani
Badan Riset dan Inovasi Nasional
Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering

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Design and Off-Design Calculations of Single Spool Turbojet Engine Performance I.G.A. Uttariyani; Diki Diki; Widiasih Widiasih; Muhamad Dahsyat; Hasoloan Siregar
Proceeding of the International Conferences on Engineering Sciences Vol. 1 No. 2 (2024): July : Proceeding of the International Conferences on Engineering Sciences
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/iconfes.v1i2.27

Abstract

The research project of the Open University and the National Research and Innovation Agency is taking place at the Open University, to design a turbojet engine that produces the targeted thrust at a speed (M), the height of the pilot with the rotational speed (RPM) set in the research activity. This paper presents the design of the performance of a single spool turbojet engine at Design Point (DP) and Off-Design Point (ODP) conditions. The calculation of the DP condition is solved using equations that have been provided in the literature, to obtain the appropriate mass flow rate. In the calculation of ODP with variations in temperature, pressure, Mach numbers using the C.N.Reffold semi-dimensional mass flow (SDMF) method to find the compressor pressure ratio. The purpose of this article is to present an ODP calculation that avoids the use of "nested" repetitive calculations and simplifies the solution process by using manual calculations with a success rate of less than 5%.
Co-Authors Diki Diki Hasoloan Siregar Muhamad Dahsyat