Exergy as a useful tool for the performance assessment of aircraft gas turbine engines: A key review

Şöhret, Yasin; Ekici, Selçuk; Altuntaş, Önder; Hepbaşlı, Arif; Karakoç, T. Hikmet

doi:10.1016/j.paerosci.2016.03.001

Cited by 74 publications

(22 citation statements)

References 58 publications

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“…In Table 2, an essential equation set for this purpose is summarized. More information may also be found in a number of texts [14,[20][21][22][23][24][25][26]29]. …”

Section: Developing Exergy-based Sustainability Indicatorsmentioning

confidence: 99%

“…Exergy and exergy related methods are practicable for this small scale turbojet engine. Similar engines, including aircraft type gas turbines, have been evaluated by many researchers using exergy methods [20][21][22][23][24][25][26]. Even though sustainability assessment studies are fewer in number than performance evaluation studies, they can be accessed in the literature.…”

Section: Introductionmentioning

confidence: 99%

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Sustainability Metrics of a Small Scale Turbojet Engine

Ekici

Şöhret

Coban

et al. 2018

International Journal of Turbo &Amp; Jet-Engines

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Over the last decade, sustainable energy consumption has attracted the attention of scientists and researchers. The current paper presents sustainability indicators of a small scale turbojet engine, operated on micro-aerial vehicles, for discussion of the sustainable development of the aviation industry from a different perspective. Experimental data was obtained from an engine at full power load and utilized to conduct an exergy-based sustainability analysis. Exergy efficiency, waste exergy ratio, recoverable exergy ratio, environmental effect factor, exergy destruction factor and exergetic sustainability index are evaluated as exergetic sustainability indicators of the turbojet engine under investigation in the current study. The exergy efficiency of the small scale turbojet engine is calculated as 27.25 % whereas the waste exergy ratio, the exergy destruction factor and the sustainability index of the engine are found to be 0.9756, 0.5466 and 0.2793, respectively.

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“…In Table 2, an essential equation set for this purpose is summarized. More information may also be found in a number of texts [14,[20][21][22][23][24][25][26]29]. …”

Section: Developing Exergy-based Sustainability Indicatorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sustainability Metrics of a Small Scale Turbojet Engine

Ekici

Şöhret

Coban

et al. 2018

International Journal of Turbo &Amp; Jet-Engines

Self Cite

View full text Add to dashboard Cite

show abstract

“…Exergy analysis also tell us precisely the locations where energy is lost. This paper tells necessity to perform state of the art exergy analysis [38]. A general aircraft is needed to operate under various non-design environment conditions like sudden pitch up, sudden pull down, sudden rolling, and sudden yawing motions.…”

Section: Theoretical Approachmentioning

confidence: 99%

In Tune with Times: Recent Developments in Theoretical, Experimental and Numerical techniques of Aircraft Engines

Srinivas

2018

IJET

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Today the aircraft engine designing and development work is increasing drastically. Especially aircraft engines play a vital role in order to decide the aircrafts speed and its performance. Broadly turbojet, turboprop, turbo shaft and turbofan engines comes under the category of air breathing engines. Every engine has its own purpose and application. But modern aircrafts require much more advancements. Designing a new aircraft engine has been a really challenging task to the researchers. But giving a complete holistic view of aircraft engines and research gap would definitely help a lot to the new designers. Once identified the drawbacks of engine performance can be corrected in the future. For any new design of aircraft engine researchers are suggested to take Theoretical, Experimental and Numerical approaches. Therefore present paper makes an effort to review complete recent Theoretical, Experimental and Numerical approaches which are followed till date. Under all the three approaches all the air breathing engines have been clearly explained and solicited. The effort is to identify the gaps between different approaches which are hampering the process of engine development. The paper also gives the research gaps that need to be incorporated for effective performance enhancement of the aircraft engines for aeromechanical features.

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“…It is a new idea and direction to diagnose the gas path of gas turbine based on the exergy loss [19][20][21][22][23][24][25]. According to the second law of thermodynamics, we know that the exergy efficiency is an important indicator to measure the irreversibility of the work of the thermal system.…”

Section: Introductionmentioning

confidence: 99%

A Marine Gas Turbine Fault Diagnosis Method Based on Endogenous Irreversible Loss

et al. 2019

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When a malfunction occurs in a marine gas turbine, its thermal efficiency will decrease slightly, and the gas path fault is often difficult to distinguish. In order to solve this problem, based on the second law of thermodynamics, the endogenous irreversible loss (EIL) model of the marine gas turbine is established, and the exergy loss analysis under normal conditions is carried out to verify the accuracy of the model. The fault diagnosis of gas turbine gas path based on EIL is proposed, and a simulation experiment conducted on a three-shaft marine gas turbine demonstrated that the proposed approach can detect and isolate gas path fault accurately under different operating conditons and enviroments.

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Exergy as a useful tool for the performance assessment of aircraft gas turbine engines: A key review

Cited by 74 publications

References 58 publications

Sustainability Metrics of a Small Scale Turbojet Engine

Sustainability Metrics of a Small Scale Turbojet Engine

In Tune with Times: Recent Developments in Theoretical, Experimental and Numerical techniques of Aircraft Engines

A Marine Gas Turbine Fault Diagnosis Method Based on Endogenous Irreversible Loss

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