Rotating combustion chambers as a key feature of effective timing of turbine engine working according to Humphrey cycle – CFD analysis

• Autorzy: Tarnawski Piotr , Ostapski Wiesław

Identyfikatory

DOI

10.24425/bpasts.2022.143100

• Języki publikacji: EN

Abstrakty

EN

The paper presents a concept of a new turbine engine with the use of rotating isochoric combustion chambers. In contrast to previously analyzed authors’ engine concepts, here rotating combustion chambers were used as a valve timing system. As a result, several practical challenges could be overcome. An effective ceramic sealing system could be applied to the rotating combustion chambers. It can assure full tightness regardless of thermal conditions and related deformations. The segment sealing elements working with ceramic counter-surface can work as self-alignment because of the centrifugal force acting on them. The isochoric combustion process, gas expansion, and moment generation were analyzed using the CFD tool (computational fluid dynamics). The investigated engine concept is characterized by big energy efficiency and simple construction. Finally, further improvements in engine performance are discussed.

Słowa kluczowe

EN

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

PL

ciśnienie spalania; cykl Humphreya; silnik turbinowy; analiza CFD; układ rozrządu; spalanie izochoryczne; sprawność energetyczna silnika; system uszczelniający

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2022
• Tom: Vol. 70, nr 5
• Strony: art. no. e143100
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Tarnawski Piotr

• Institute of Machine Design Fundamentals, Warsaw University of Technology, Narbutta 84, 02-524 Warsaw, Poland

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

autor

Ostapski Wiesław

• Institute of Machine Design Fundamentals, Warsaw University of Technology, Narbutta 84, 02-524 Warsaw, Poland

Bibliografia

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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).