Exergy analysis of a turbofan aircraft engine

Turgut, Enis Turhan; Karakoç, T. Hikmet; Hepbaşlı, Arif; Rosen, Marc A.

doi:10.1504/ijex.2009.023997

Cited by 46 publications

(21 citation statements)

References 4 publications

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“…Comparing these results to the those with separated exhaust in Ref. [6], exergy efficiencies for fan and core engine exhaust are found to be around 12%, which are much lower than the those for a mixed exhaust engine studied in this paper. Consequently, the total exergy loss in fan and core engine exhaust is higher than the that in the mixed exhaust alone.…”

Section: Resultscontrasting

confidence: 46%

“…The obtained results are compared to the previous study in Ref. [6], which concerns a turbofan engine with separated exhaust. Figure 2 and Figure 3 show that the turbine has the greatest exergy efficiency while the exhaust is found to have the lowest one.…”

Section: Resultsmentioning

confidence: 84%

“…Comparing with the exergy analysis for turbofan engine with separate exhaust in Ref. [6], the fuel depletion ratio and productivity lack of the mixed exhaust engine are higher. This might be due to additional heating of the secondary air exiting the fan by the primary air from core engine when they are mixed to attain the same temperature before exiting the exhaust.…”

Section: Resultsmentioning

confidence: 94%

“…According to one of the studies, turbofan engine with mixed exhaust and no afterburner would give the optimized value of SFC [10]. In another study, fan and core engine exhausts are shown to have the highest potential improvement rate based on exergy analysis performed, which means that the focus in future development should be placed on these two components since they still have higher chances to be improved for better performance [6].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the exergy efficiency is inversely proportional with altitude due to decreasing value of temperature [4]. In the meantime, several studies have also been conducted using either Jet-A1 or JP8 as the fuel [1,[5][6][7][8][9]. Most of these studies cover not only the thermodynamic analysis part, but also the economic [5,7] and sustainability factors [1,9].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Sustainability assessment of turbofan engine with mixed exhaust through exergetic approach

Saadon

Redzuan

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. In this study, the theory, methods and example application are described for a CF6 high-bypass turbofan engine with mixed exhaust flow based on exergo-sustainable point of view. To determine exergetic sustainability index, the turbofan engine has to undergo detailed exergy analysis. The sustainability indicators reviewed here are the overall exergy efficiency of the system, waste exergy ratio, exergy destruction factor, environmental effect factor and the exergetic sustainability index. The results obtained for these parameters are 26.9%, 73.1%, 38.6%, 2.72 and 0.37, respectively, for the maximum take-off condition of the engine. These results would be useful to better understand the connection between the propulsion system parameters and their impact to the environment in order to make it more sustainable for future development.

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Section: Resultscontrasting

confidence: 46%

Section: Resultsmentioning

confidence: 84%

Section: Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Sustainability assessment of turbofan engine with mixed exhaust through exergetic approach

Saadon

Redzuan

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Energy and Exergy Analyses

2021

Thermal Energy Storage

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Achieving a more efficient and greener combined heat and power system driven by a micro gas turbine engine: Issues, opportunities, and benefits in the presence of thermodynamic perspective

2021

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The objective of the research is to discuss the issues, opportunities, and benefits of a combined heat and power system, including a micro gas turbine engine (M-CHP) operated by natural gas, with an estimated sale price of $245 000 that produces 225 kW-net of electrical power and a 209.8 kW-net thermal power output in the industrial zone via thermodynamic indicators that help to measure the cost rate, the environmental/ecological effects, and sustainable growth. The ratio of useful energy output (electrical and heating) to the fuel energy for the M-CHP is computed to be 70.2%. In addition, other indicators constituting the practical implications of the study, with a capacity to cause a positive change in fuel consumption and the amount of pollutants (electrical to heating ratio, efficiencies of exergy and improved exergy, fuel exergy depletion and productivity lacking ratios, improvement potential, cost rates and sustainability indexes) are detailed. The novelty of this work is the capability to serve as guide for similar systems with a detailed approach in performance and environmental assessment by prioritizing efficiency and fuel consumption. This investigation intends to establish a design for the opportunities and benefits that a thermodynamic approach provides to M-CHP systems.

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Exergy analysis of a turbofan aircraft engine

Cited by 46 publications

References 4 publications

Sustainability assessment of turbofan engine with mixed exhaust through exergetic approach

Sustainability assessment of turbofan engine with mixed exhaust through exergetic approach

Energy and Exergy Analyses

Achieving a more efficient and greener combined heat and power system driven by a micro gas turbine engine: Issues, opportunities, and benefits in the presence of thermodynamic perspective

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