Work

Experimental Study on Propagation Characteristics of Kerosene/Air RDE with Different Diameters

Year: 2022

Type: article

Abstract: A series of experimental tests were carried out in order to study the propagation characteristics of a liquid kerosene rotating detonation engine (RDE) with different diameters. Distinguished characteristics of spatial and temporal instability were found in the large-scale RDE due to the uneven circumferential distribution of kerosene supply pressure. As for the two counter-waves detonation system, the 500 mm-diameter RDE maintains a higher detonation wave velocity due to its longer injection recovery time. However, the 220 mm-diameter RDE can obtain a larger equivalence ratio operation range, higher specific thrust, and higher specific impulse. In addition, compared with the deflagration combustion, the detonation combustion has higher chamber pressure and thrust under the same operational conditions.

Source: Energies

DOI: 10.3390/en15124442

Authors: Shida Xu, Feilong Song, Jianping Zhou, Xingkui Yang, Peng Cheng

Institution: Air Force Engineering University

Language: English

Topic: Combustion and Detonation Processes

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $2,303