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- A Simplified Chemical Reactor Network Approach for Aeroengine Combustion Chamber Modeling and Preliminary Design
- 作者： Sergios Villette Dimitris Adam Alexios Alexiou Nikolaos Aretakis Konstantinos Mathioudakis 来源： Aerospace 年份： 2023 文献类型 ： 期刊 关键词： modeling turbines reactor CANTERA pollutant aeroengines combustion chamber chemical Network design gas preliminary emissions
- 描述： In a time when low emission solutions and technologies are of utmost importance regarding the sustainability of the aviation sector, this publication introduces a reduced-order physics-based model for combustion chambers of aeroengines, which is capable of reliably producing accurate pollutant emission and combustion efficiency estimations. The burner is subdivided into three volumes, with each represented by a single perfectly stirred reactor, thereby resulting in a simplified three-element serial chemical reactor network configuration, reducing complexity, and promoting the generality and ease of use of the model, without requiring the proprietary engine information needed by other such models. A tuning method is proposed to circumvent the limitations of its simplified configuration and the lack of detailed geometric data for combustors in literature. In contrast to most similar frameworks, this also provides the model with the ability to simultaneously predict the combustion efficiency and all pollutant emissions of interest ( N O x , C O and unburnt hydrocarbons) more effectively by means of implementing a detailed chemical kinetics model. Validation against three correlation methods and actual aeroengine configurations demonstrates accurate performance and emission trend predictions. Integrated within two distinct combustion chamber low-emission preliminary design processes, the proposed model evaluates each new design, thereby displaying the ability to be employed in terms of optimizing a combustor’s overall performance given its sensitivity to geometric changes. Overall, the proposed model proves its worth as a reliable and valuable tool for use towards a greener future in aviation.
- A Simplified Chemical Reactor Network Approach for Aeroengine Combustion Chamber Modeling and Preliminary Design
- 作者： Sergios Villette Dimitris Adam Alexios Alexiou Nikolaos Aretakis Konstantinos Mathioudakis 来源： Aerospace 年份： 2023 文献类型 ： 期刊 关键词： modeling turbines reactor CANTERA pollutant aeroengines combustion chamber chemical Network design gas preliminary emissions
- 描述： In a time when low emission solutions and technologies are of utmost importance regarding the sustainability of the aviation sector, this publication introduces a reduced-order physics-based model for combustion chambers of aeroengines, which is capable of reliably producing accurate pollutant emission and combustion efficiency estimations. The burner is subdivided into three volumes, with each represented by a single perfectly stirred reactor, thereby resulting in a simplified three-element serial chemical reactor network configuration, reducing complexity, and promoting the generality and ease of use of the model, without requiring the proprietary engine information needed by other such models. A tuning method is proposed to circumvent the limitations of its simplified configuration and the lack of detailed geometric data for combustors in literature. In contrast to most similar frameworks, this also provides the model with the ability to simultaneously predict the combustion efficiency and all pollutant emissions of interest ( N O x , C O and unburnt hydrocarbons) more effectively by means of implementing a detailed chemical kinetics model. Validation against three correlation methods and actual aeroengine configurations demonstrates accurate performance and emission trend predictions. Integrated within two distinct combustion chamber low-emission preliminary design processes, the proposed model evaluates each new design, thereby displaying the ability to be employed in terms of optimizing a combustor’s overall performance given its sensitivity to geometric changes. Overall, the proposed model proves its worth as a reliable and valuable tool for use towards a greener future in aviation.
- Research Status and Development Trend of Cylindrical Gas Film Seals for Aeroengines
- 作者： Haitao Jiang Shurong Yu Shengshun Wang Xuexing Ding Andi Jiang 来源： Processes 年份： 2023 文献类型 ： 期刊 关键词： characteristics development trend aeroengine testing seal sealing experimental technology film multi coupling field structural gas deformation dynamic Cylindrical physical
- 描述： structural characteristics and use limitations of the labyrinth seal, brush seal, honeycomb seal, gas film
- Research Status and Development Trend of Cylindrical Gas Film Seals for Aeroengines
- 作者： Haitao Jiang Shurong Yu Shengshun Wang Xuexing Ding Andi Jiang 来源： Processes 年份： 2023 文献类型 ： 期刊 关键词： characteristics development trend aeroengine testing seal sealing experimental technology film multi coupling field structural gas deformation dynamic Cylindrical physical
- 描述： structural characteristics and use limitations of the labyrinth seal, brush seal, honeycomb seal, gas film