Off-Design Modelling of a Turbo Jet Engine with Operative Afterburner
Open Access
- 1 January 2022
- journal article
- research article
- Published by Scientific Research Publishing, Inc. in Open Journal of Energy Efficiency
- Vol. 11 (03), 88-107
- https://doi.org/10.4236/ojee.2022.113007
Abstract
Gas turbines are considered as one of the leading internal combustion engines in modern air transportation due to its favourable power to weight ratio and its continuous combustion process. Recent research focus has been concerned with performance improvements aimed at reduced fuel consumption and hence reduced impact on the environment. This study is aimed at using theoretical and computational methods to model the operation and performance a turbojet gas turbine engine. The commercial software GasTurb13 was used for the theoretical simulation while Microsoft Excel was used for the analytical study. GasTurb13 solved the model using pseudo-perfect gas models i.e. component maps since the specific gas ratio could not be inputted into the solver. The effect of changes in the Mach number and altitude on the engine performance was studied. Also the effect of changes in the compressor pressure ratio, the turbine inlet temperature and the afterburner exit temperature were also studied. Results obtained showed the optimum pressure ratio at maximum thrust constraint to be 16.78 for the turbojet engine operating at Mach number (Ma) = 0.8 and altitude = 10,000 m, Turbine inlet temperature (TIT) = 1200 K and Afterburner exit temperature = 1800 K.Keywords
This publication has 11 references indexed in Scilit:
- Structure and Screech Tone of Radially Underexpanded Jet Emitted by Facing CylindersOpen Journal of Fluid Dynamics, 2020
- Modelling of a turbojet gas turbine enginePublished by Institute of Electrical and Electronics Engineers (IEEE) ,2015
- Optimization of gas turbines for sustainable turbojet propulsionPropulsion and Power Research, 2015
- Off-design performance of solar Centaur-40 gas turbine engine using SimulinkAin Shams Engineering Journal, 2013
- Data analysis and performance model calibration of a small turbojet engineProceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2011
- Thermodynamic optimization of the turbofan cycleAircraft Engineering and Aerospace Technology, 2006
- A variable cycle jet engine for ASTOVL aircraftAircraft Engineering and Aerospace Technology, 1997
- Simulation of an Advanced Twin-Spool Industrial Gas TurbineJournal of Engineering for Gas Turbines and Power, 1992
- A New Method of Predicting the Performance of Gas Turbine EnginesJournal of Engineering for Gas Turbines and Power, 1991
- NEPCOMP: The Navy Engine Performance ProgramPublished by ASME International ,1974