The hybrid concept of turboshaft engine working according to Humphrey cycle dedicated to variety power demand - CFD analysis

• Autorzy: Tarnawski Piotr

Identyfikatory

DOI

10.19206/CE-162763

• Języki publikacji: EN

Abstrakty

EN

The paper presents a new concept of the turbine engine in the area of pressure gain combustion (PGE). The engine works according to Humphrey’s cycle. Minor modification in construction has allowed power generation of 500 kW, 700 kW, 1000 kW, and 1800 kW. The concept successfully resolved the challenges related to the temporary opening and closing of the combustion chamber. The presented valve timing system has ensured effective gas flow and what stands behind it, an effective process of conversion of a high-pressure gas impulse into mechanical energy. Rotating combustion chambers enabled the application of an effective sealing system. The concept characterizes simple construction and potentially low power-to-weight coefficient. The CFD numerical analysis of the presented engine concept showed very promising effective efficiency and low specific fuel consumption.

Słowa kluczowe

EN

pressure gain combustion; Humphrey cycle; turbine engine; CFD analysis; valve timing system; isochoric combustion; engine energy efficiency; sealing system

PL

spalanie powodujące wzrost ciśnienia; cykl Humphreya; silnik turbinowy; analiza CFD; układ rozrządu; spalanie izochoryczne; sprawność energetyczna silnika; system uszczelniający

• Wydawca: Polskie Towarzystwo Naukowe Silników Spalinowych
• Czasopismo: Combustion Engines
• Rocznik: 2023
• Tom: R. 62, nr 2
• Strony: 129--136
• Opis fizyczny: Bibliogr. 17 poz., il. kolor., wykr.

Twórcy

autor

Tarnawski Piotr

• Institute of Machine Design Fundamentals, Warsaw University of Technology

• https://orcid.org/0000-0001-6689-0243

Bibliografia

• [1] Żmudka Z, Postrzednik S. Improving the effective efficiency of a spark ignition engine through the use of a fully independent valve control system. Combustion Engines. 2021; 187(4):30-35. https://doi.org/10.19206/CE-141541
• [2] Friedl H, Fraidl G, Kapus P. Highest efficiency and ultra-low emission - internal combustion engine 4.0. Combustion Engines. 2020;180(1):8-16. https://doi.org/10.19206/CE-2020-102
• [3] Brophy C, Roy G. Benefits and challenges of pressure-gain combustion systems for gas turbines. Mech Eng. 2009; 131(3):54-55. https://doi.org/10.1115/1.2009-MAR-8
• [4] Walraven F. Operational behavior of a pressure wave machine with constant volume combustion. ABB Technical Report CHCRC 94-10. 1994.
• [5] Kurec K, Piechna J, Gumowski K. Investigations on unsteady flow within a stationary passage of a pressure wave exchanger by means of PIV measurements and CFD calculations. Appl Therm Eng. 2017;112(5),610-620. https://doi.org/10.1016/j.applthermaleng.2016.10.142
• [6] Tarnawski P. Koncepcja silnika turbinowego o zasilaniu pulsacyjnym. Doctoral dissertation - Warsaw University of Technology 2018.
• [7] Kawalec M, Perkowski W, Łukasik B et al. Applications of the continuously rotating detonation to combustion engines at the Łukasiewicz - Institute of Aviation. Combustion Engines. 2022;191(4):51-57. https://doi.org/10.19206/CE-145409
• [8] Tarnawski P, Ostapski W. Pulse powered turbine engine concept - numerical analysis of influence of different valve timing concepts on thermodynamic performance. B Pol Aca Sci-Tech. 2018;66(3):373-382. https://doi.org/10.24425/123444
• [9] Tarnawski P. Analytical performance evaluation of Humphrey cycle for turbine engine application. Machine Dynamics Research. 2017;41(3):27-37.
• [10] Kamiuto K. Comparison of basic gas cycles under the restriction of constant heat addition. Appl Energ. 2006;83(6): 583-593. https://doi.org/10.1016/j.apenergy.2005.05.008
• [11] Stathopoulos P. Comprehensive thermodynamic analysis of the Humphrey cycle for gas turbines with pressure gain combustion. Energies. 2018;11(12):3521. https://doi.org/10.3390/en11123521
• [12] Tarnawski P, Ostapski W. Pulse powered turbine engine concept implementing rotating valve timing system - numerical CFD analysis. J Aerospace Eng. 2019;32(3). https://doi.org/10.1061/(ASCE)AS.1943-5525.0001001
• [13] Tarnawski P, Ostapski W. A concept of a pulse-powered turbine engine with application of self-acting displacement valves-3D numerical analysis. SAE Int J Engines. 2021; 14(3):419-437. https://doi.org/10.4271/03-14-03-0025
• [14] Tarnawski P, Ostapski W. Rotating combustion chambers as a key feature of effective timing of turbine engine working according to Humphrey cycle - CFD analysis. B Pol Aca Sci-Tech. 2022;70(5):e143100. https://doi.org/10.24425/bpasts.2022.143100
• [15] Theory Guide. ANSYS® Academic Associate CFD, Release 16.2, Help System; ANSYS, Inc.: Canonsburg, PA, 2016.
• [16] Tikhonenkov S. An internal combustion engine without a crankshaft. Perspectives. Combustion Engines. 2020; 183(4):39-44. https://doi.org/10.19206/CE-2020-406
• [17] Gas Turbine Engines. Aviation week and space technology. http://www.geocities.jp/nomonomo2007/AircraftDatabase/AWdata/AviationWeekPages/GTEnginesAWJan2008.pdf (accessed on 11.11.2022).

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).