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Abstrakty
The gas microturbines gain significance in various industry sectors. One of their most crucial advantages is the capability of utilizing variety of fuels. At the same time, the emissions regulations become increasingly strict. This is why there is a need to look for a new technological solution to limit the emissions of selected substances, like carbon monoxide (CO) and nitrogen oxides (NOx). The internal recirculation of the flue gases is well known to limit the temperature peak and for the homogenization of the temperature field gradient in different combustion chambers. This paper presents a numerical investigation of a novel internal flue gas recirculation system applied to gas microturbine combustors. The ability to perform an internal exhaust gases recirculation by adding a combustor internal pipe system was verified numerically. This paper exposed the numerical investigation methods and obtained results. The study presents the concept and results performed on three cases of internal exhaust gases recirculation systems applied to a reference combustor. The work permitted to demonstrate numerically that it is possible to perform an autonomous exhaust gases recirculation inside gas micro-turbine combustor at a maximum global rate of 0.51%, and that the recirculation system has an impact on the combustion processes without specially modifying the combustor work parameters.
Czasopismo
Rocznik
Tom
Strony
21--29
Opis fizyczny
Bibliogr. 20 poz., il. kolor., wykr.
Twórcy
autor
- Faculty of Mechanical and Power Engineering, Wroclaw University of Science and Technology
autor
- Faculty of Mechanical and Power Engineering, Wroclaw University of Science and Technology
Bibliografia
- [1] LAV, C., KAUL, C., SINGH, R. et al. (2013). Potential of micro turbines for small scale power generation. International Journal of Advanced Information Science and Technology. 2013, 2(5), 35-39. https://doi.org/10.15693/ijaist/2013.v2i5.77-81
- [2] KWON, M., NGUYEN, B.H., KIM, S. et al. Numerical investigation of buoyancy and thermal radiation effects on a mid-/large-sized low NOx combustion system with flue-gas internal recirculation. Advances in Mechanical Engineering. 2018, 10(4), 1-17. https://doi.org/10.1177/1687814018769139
- [3] GIERAS, M., STAŃKOWSKI, T. Computational study of an aerodynamic flow through a micro turbine engine combustor. Journal of Power Technologies. 2012, 92(2), 68-79.
- [4] SUCHOCKI, T., LAMPART, P., KLONOWICZ, P. Numerical investigation of a GTM 140 turbojet engine. Open Engineering, 2015, 5, 478-484. https://doi.org/10.1515/eng-2015-0053
- [5] DIAS, F.L.G., NASCIMENTO, M.A.R., RODRIGUES, L.O. Reference area investigation in a gas turbine combustion chamber using CFD. Journal of Mechanical Engineering and Automation. 2014, 4(2), 73-82. https://doi.org/10.5923/j.jmea.20140402.04
- [6] VILAG, V., VILAG, J., CARLANESCU, R. et al. CFD application for gas turbine combustion simulations. In: JI,G., ZHU, J. (Ed.). Computational fluid dynamics simulations. IntechOpen. 2019. https://doi.org/10.5772/intechopen.89759
- [7] GONZALEZ, C., WONG, K.C., ARMFIELD, S. Computational study of a micro turbine engine combustor using Large Eddy Simulation and Reynolds Averaged turbulence models. ANZIAM Journal. 2007, 49, 407-422. https://doi.org/10.21914/anziamj.v49i0.338
- [8] ANSYS, Inc. Retrieved from https://www.ansys.com/
- [9] SOSNOWSKI, M., KRZYWANSKI, J., GNATOWSKA, R. Polyhedral meshing as an innovative approach to computational domain discretization of a cyclone in a fluidized bed CLC unit. E3S Web of Conferences, 2017, 14(01027). https://doi.org/10.1051/e3sconf/20171401027
- [10] ZAHID, Q., CHAN, A. A study of the effect of element types on flow and turbulence characteristics around an isolated high-rise building. Eleventh International Conference on CFD in the Minerals and Process Industries, CSIRO. Melbourne 2015.
- [11] MATYUSHENKO, A., STABNIKOV, A., GARBARUK, A. Criteria of computational grid generation for turbulence models taking into account laminar-turbulent transition. Journal of Physics: Conference Series, 2019, 1400(7). https://doi.org/10.1088/1742-6596/1400/7/077047
- [12] ANSYS, Inc. Ansys Fluent Theory Guide - Release 15.0. 2013.
- [13] SUCHOCKI, T., LAMPART, P., SURWIŁO, J. Designation of operating characteristics for micro-jet engine and CFD validation. Mechanik. 2015, 7, 813-820. https://doi.org/10.17814/mechanik.2015.7.301
- [14] GIERAS, M. Miniaturowe silniki turboodrzutowe (Micro-turbojet engine). Publishing House of the Warsaw University of Technology, Warsaw 2016.
- [15] SMITH, T., SHEN, Z., FRIEDMAN, J. Evaluation of coefficients for the weighted sum of gray gases model. Journal of Heat Transfer. 1982, 104(4), 602-608. https://doi.org/10.1115/1.3245174
- [16] FUCHS, F., MEIDINGER, V., NEUBURGER, N. et al. Challenges in designing very small jet engines fuel distribution and atomization. International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Honolulu 2016.
- [17] PETERS, N. Turbulent Combustion. Cambridge University Press. Cambridge 2000.
- [18] SMITH, G.P., GOLDEN, D.M., FRENKLACH, M. et al. Grimech 3.0. Retrieved from http://www.me.berkeley.edu/gri_mech/
- [19] LAUNDER, B.E., SPALDING, D.B. The numerical computation of turbulent flows. Computer Methods in Applied Mechanics and Engineering. 1974, 3(2), 269-289. https://doi.org/10.1016/0045-7825(74)90029-2
- [20] ANSYS, Inc. Ansys Fluent Tutorial Guide - Release 18.0. 2017.
Uwagi
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-2a53df62-1903-4d26-9c81-23a92907e21f