EXERGO-SUSTAINABILITY ANALYSIS AND ECOLOGICAL FUNCTION OF A SIMPLE GAS TURBINE AERO-ENGINE

Year 2018, Volume: 4 Issue: 4 - Special Issue 8: International Technology Congress 2017, Pune, India, 2083 - 2095, 10.04.2018

Yasin Şöhret

https://doi.org/10.18186/journal-of-thermal-engineering.414990

Cited By: 12

Abstract

Nowadays, many
environmental issues are of concern as a result of conventional energy
resources utilization in addition to a rise in energy costs dependent on the
rapid consumption of resources. Therefore, sustainability is an important term
for the utilization of energy resources. The aviation industry is known to be
responsible for 3% of total CO₂ emissions concerning global warming.
This forces us to investigate the aviation industry, specifically   gas turbine aero-engines. Gas turbine
aero-engines, working according to the principles of thermodynamics, similar to
other energy conversion and generation systems can be evaluated using the first
and second laws of thermodynamics. Integrated employment of the first and
second laws of thermodynamics, namely exergy analysis, is an effective method
for performance evaluation. Additionally, exergo-sustainability also yields
beneficial results. In the framework of the current paper, ecological function
is defined for a simple gas turbine aero-engine, while exergo-sustainability
assessment methodology is also explained. Exergy efficiency of the compressor,
combustor, gas turbine and nozzle, as components of a gas turbine aero-engine,
is found to be 91.58%, 57.41%, 97.96%,
and 61.25%, respectively. On the other hand, the sustainability measures of the
evaluated gas turbine aero-engine in order of exergy efficiency, waste exergy
ratio, recoverable exergy rate, exergy destruction factor, environmental effect
factor and sustainability index are calculated to be 0.28, 0.71, 0.00, 0.69,
2.45, and 0.40, respectively whereas the ecological function is found to be
-8732.21 kW.

Keywords

Aircraft, Aviation, Ecological function, Exergy, Gas turbine, Sustainability

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