Naslov
Numerical Analyses of Radiative Heat Transfer and Combustion Process by Using General Phase Reactions in a Jet Engine

Autori
Jurić, Filip ; Pađen, Ivan ; Petranović, Zvonimir ; Vujanović, Milan ; Priesching, Peter

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Digital Proceedings of the 3rd SEE SDEWES Conference / Ban, Marko [et al.] - Zagreb, 2018

Skup
3rd South East European Conference on Sustainable Development of Energy, Water and Environment System Conference (SEE SDEWES 2018)

Mjesto i datum
Novi Sad, Srbija, 30.06.2018. - 04.07.2018

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Combustion, Radiation, Jet Engine, Emission Modelling

Sažetak
In this research, the numerical analysis of a jet engine combustion process with the computational fluid dynamics software AVL FIRE™ is presented. It is known, that the gases inside the high-temperature combustion chamber of a jet engine participate in the heat transfer with three different physical phenomena: absorbing, emitting and scattering. The absorbing and emitting phenomena are predominant since the combustion of a jet fuel does not produce a significant amount of soot particles that are the main contributor to the scattering phenomenon. If the radiative participating gases physic is considered, the mean temperature will be decreased, thus the concentration of pollutant emissions will be also changed. Furthermore, the pollutant emission species will have an additional impact on the gas radiation. That is why the radiation heat transfer should be included to achieve more accurate results of emissions concentrations. The aim of this work is to present capable and frugal time-consuming procedures for modelling interactive combustion process and the radiation heat transfer inside a jet engine combustion chamber. In this research, the Euler Lagrangian discrete droplet method was utilised for the spray modelling, the radiation heat transfer was modelled with Discrete Transfer Radiative Method (DTRM) for radiative participating media, and the combustion process was described with general phase reactions. Finally, the results of temperature field, radiation heat source and emission concentrations inside the combustion chamber were verified.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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