Prediction of emissions in turbojet engines exhausts: relationship between nitrogen oxides emission index (EINOx) and the operational parameters

Tsague, Louis; Tatietsé, Thomas Tamo; Ngundam, J.M.; Tsogo, Joseph

doi:10.1016/j.ast.2007.04.005

Cited by 17 publications

(5 citation statements)

References 2 publications

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“…It is because the airworthiness regulations have strict restrictions on the engine NO x emission which could cause great damages to the ozone layer and lead to the serious environmental pollution. The index for evaluating the engine pollutant emission (EI) could be defined in ( 26) [38]. According to the NASA research program of the new generation of the supersonic aircraft, the target value of the NO x emission index should be less than 10 g/kg fuel consumption during cruise [39].…”

Section: No X Emission Prediction Modelmentioning

confidence: 99%

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Research on Simulation and Performance Optimization of Mach 4 Civil Aircraft Propulsion Concept

Chen

Jia

Tang

et al. 2019

International Journal of Aerospace Engineering

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Supersonic civil aircraft is of a promising area in the development of future civil transport, and aircraft propulsion system is one of the key issues which determine the success of the aircraft. To get a good conceptual design and performance investigation of the supersonic civil aircraft engine, in this article, a fast, versatile as well as trust-worthy numerical simulation platform was established to analyze the Mach 4 turbine-based combined cycle (TBCC) engine concept so as to be applied to the supersonic civil aircraft. First, a quick and accurate task requirement analysis module was newly established to analyze the mission requirement of the Mach 4 supersonic civil aircraft. Second, the TBCC engine performance simulation model was briefly presented and the number of engines on the supersonic civil aircraft was analyzed, considering single engine inoperative. Third, the Stone model and the DLR method were investigated to estimate the engine jet noise and the NOx emission of the Mach 4 supersonic civil aircraft. Finally, a multiobjective optimization tool made up of a response surface method and a genetic algorithm was developed to optimize the design parameters and the control law of the TBCC engine, in order to make the Mach 4 supersonic civil aircraft engine with better performance, lower noise, and lower emissions. The uniqueness of the developed analysis tool lies in that it affords a numerical simulation platform capable of investigating the task requirement analysis module of the supersonic civil aircraft, engine jet noise prediction model, and the NOx emission prediction model, as well as a multiobjective performance optimization tool, which is beneficial for the conceptual design and performance research of Mach 4 supersonic civil aircraft’s propulsion system.

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Section: No X Emission Prediction Modelmentioning

confidence: 99%

“…T 3 Model Method. T 3 model method is based on the NO x emission and the combustion chamber entrance total temperature T t3 , according to the study by Tsague et al [38], which has a high fitting precision, and its relation could be shown as follows.…”

Section: Comparison Of Different No X Emission Predictionmentioning

confidence: 99%

Research on Simulation and Performance Optimization of Mach 4 Civil Aircraft Propulsion Concept

Chen

Jia

Tang

et al. 2019

International Journal of Aerospace Engineering

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“…The environmental damage costs of the T56 turboprop engine were obtained as 423.94 $/h at 75%‐mode, 576.97 $/h at 100%‐mode, 634.93 $/h at MIL‐mode and 665.85 $/h at takeoff‐mode. Tsague et al 18 worked on nitrogen oxides emissions index (EINO x ) of turbojet engines. In this regard, output power, efficiency, flame temperature, combustor inlet temperature and fuel flow rate were collected from the gas turbine producers.…”

Section: Introductionmentioning

confidence: 99%

Energy, environment and enviroeconomic analyses and assessments of the turbofan engine used in aviation industry

Tuzcu

Şöhret

Çalışkan

2020

Env Prog and Sustain Energy

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In this study, energy, environment and enviroeconomic analyses are applied to the turbofan engine used in aviation industry. The CO 2 emissions of the turbofan engine are calculated and cost of the CO 2 emissions for a daily period are evaluated. The energy efficiencies of the overall turbofan engine system, high pressure turbine, low pressure turbine and the combustion chamber are found as 19.7%, 26.2%, 29.2% and 90%, respectively. The CO 2 emissions releasing in a day are calculated as 358.9 tonCO 2 /day, while the CO 2 emissions price in a day are calculated as 5742.52 US $/day for the turbofan engine. Also, 3.35 kg carbon dioxide is released into the air as a result of 1 kg of kerosene burning. Environmental and the enviroeconomic results of this study can be useful for developing environmentally sustainable turbofan engines as well as for researches and designers in aviation industry.

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“…Some of those concerning reciprocating internal combustion engines are given in [39][40][41][42][43][44]. Apart from those some research on emission prediction from gas turbine engines are given in [45][46][47][48][49].…”

Section: Introductionmentioning

confidence: 99%

Prediction of equilibrium products and thermodynamic properties in H2O injected combustion for CαHβOγNδ type fuels

Kayadelen¹,

Üst²

2013

Fuel

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Prediction of emissions in turbojet engines exhausts: relationship between nitrogen oxides emission index (EINOx) and the operational parameters

Cited by 17 publications

References 2 publications

Research on Simulation and Performance Optimization of Mach 4 Civil Aircraft Propulsion Concept

Research on Simulation and Performance Optimization of Mach 4 Civil Aircraft Propulsion Concept

Energy, environment and enviroeconomic analyses and assessments of the turbofan engine used in aviation industry

Prediction of equilibrium products and thermodynamic properties in H2O injected combustion for CαHβOγNδ type fuels

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