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A Concept of a Pulse-Powered Turbine Engine with Application of Self-Acting Displacement Valves—3D Numerical Analysis

Journal Article
03-14-03-0025
ISSN: 1946-3936, e-ISSN: 1946-3944
DOI: https://doi.org/10.4271/03-14-03-0025
Published March 12, 2021 by SAE International in United States
A Concept of a Pulse-Powered Turbine Engine with Application of Self-Acting Displacement Valves—3D Numerical Analysis
Sector:
Citation: Tarnawski, P. and Ostapski, W., "A Concept of a Pulse-Powered Turbine Engine with Application of Self-Acting Displacement Valves—3D Numerical Analysis," SAE Int. J. Engines 14(3):419-437, 2021, https://doi.org/10.4271/03-14-03-0025.
Language: English

Abstract:

The article presents a concept of a new turbine engine in the field of pressure gain combustion (PGC). The engine operates according to the Humphrey thermodynamic cycle, where pressure increase was obtained in a combustion chamber closed with a valve. The intake mushroom valve and exhaust swing valve were designed for self-acting. They operate as a result of gas pressure and centrifugal force. The engine consists of two rotating combustion chambers and a counterrotating radial turbine, in both of which mechanical power was generated. The gas flow in the mobile valve system, combustion process, gas expansion, and torque generation were analyzed by means of Computational Fluid Dynamics (CFD) analysis. The investigated engine concept is characterized by significant energy efficiency.