RESEARCH AND DEVELOPMENT OF DETONATION ENGINE SYSTEM FOR THE SOUNDING ROCKET FLIGHT EXPERIMENT S-520-31

2020 ◽  
Author(s):  
JIRO KASAHARA ◽  
◽  
KEISUKE GOTO ◽  
RYUYA YOKOO ◽  
BUYAKOFU VALENTIN ◽  
...  
Keyword(s):  
Thermal Efficiency ◽  
Constant Pressure ◽  
Combustible Mixture ◽  
Sounding Rocket ◽  
Detonation Waves ◽  
Supersonic Speed ◽  
Flight Experiment ◽  
Detonation Engine ◽  
Engine System ◽  
Engine Systems

A detonation is a combustion wave that propagates at a supersonic speed (2-3 km/s) in a combustible mixture. There are many fundamental studies of detonation waves and detonation engine systems. The detonation cycle has a higher thermal efficiency than a conventional constant-pressure combustion cycle.

Flight Demonstration of Detonation Engine System Using Sounding Rocket S-520-31: System Design

2022 ◽  
Author(s):  
Akira Kawasaki ◽  
Koichi Matsuyama ◽  
Ken Matsuoka ◽  
Hiroaki Watanabe ◽  
Noboru Itouyama ◽  
...  
Keyword(s):  
System Design ◽  
Sounding Rocket ◽  
Detonation Engine ◽  
Engine System

scholarly journals The Principal Aspects of Application of Detonation in Propulsion Systems

2013 ◽  
Vol 2013 ◽  
pp. 1-15 ◽  
Author(s):  
A. A. Vasil'ev
Keyword(s):  
Supersonic Flow ◽  
Combustible Mixture ◽  
Experimental Results ◽  
Detonation Waves ◽  
Propulsion Systems ◽  
Air Breathing ◽  
Deflagration To Detonation Transition ◽  
Detonation Engine ◽  
Detonation Process ◽  
Detonation Transition

The basic problems of application of detonation process in propulsion systems with impulse and continuous burning of combustible mixture are discussed. The results on propagation of detonation waves in supersonic flow are analyzed relatively to air-breathing engine. The experimental results are presented showing the basic possibility of creation of an engine with exterior detonation burning. The base results on optimization of initiation in impulse detonation engine are explained at the expense of spatial and temporal redistribution of an energy, entered into a mixture. The method and technique for construction of highly effective accelerators for deflagration to detonation transition are discussed also.

scholarly journals The Effect of Heat Exchange Fluid Composition on the Performance of a Liquid Nitrogen Engine System

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1474
Author(s):  
Vitaliy Sechenyh ◽  
Fanos Christodoulou ◽  
Huayong Zhao ◽  
Colin Garner ◽  
Daniel Fennell
Keyword(s):  
Heat Exchange ◽  
Water Content ◽  
Liquid Nitrogen ◽  
Thermodynamic Model ◽  
Thermal Efficiency ◽  
Engine Performance ◽  
Fluid Composition ◽  
Engine System ◽  
The Impact ◽  
Engine Systems

It has been proven that performance gains in liquid nitrogen (LN2) engine systems, generating simultaneous cooling and auxiliary power, can be achieved through integration of a dedicated heat exchange fluid (HEF) circuit. The novel, HEF enhanced LN2 engine system can be utilised as an optimised hybrid solution for commercial refrigeration trucks. Although the benefits arising from HEF addition have been researched, there are no articles investigating the effect of changing the HEF composition on engine performance. This article reports a detailed experimental investigation on the performance of a novel, HEF enhanced LN2 engine system. The key contribution of the current study is the knowledge generated from investigating the impact of different HEF compositions on the engine performance under different HEF temperatures, N2 inlet conditions and engine speeds. The HEF composition was varied through changing the water content in the mixture. A thermodynamic model based on an idealised cycle was used to assist interpretation of the experimental results and assess the potential of the proposed engine architecture. The experimental study demonstrated up to 42.5% brake thermal efficiency, up to 2.67 kW of brake power and up to 174 kJ/kg specific energy, which were higher than previously published figures for LN2 engine systems. A reduction in the HEF water content was found to generally increase the engine power output at a HEF temperature of 30 °C. However, at a HEF temperature of 60 °C, the impact of HEF composition was found to be minor and nonmonotonic. The thermodynamic model predicted the upper and lower limits of the measured indicated power and indicated thermal efficiency with acceptable accuracy.

Flight Demonstration of Detonation Engine System Using Sounding Rocket S-520-31: Performance of Rotating Detonation Engine

2022 ◽  
Author(s):  
Keisuke Goto ◽  
Ken Matsuoka ◽  
Koichi Matsuyama ◽  
Akira Kawasaki ◽  
Hiroaki Watanabe ◽  
...  
Keyword(s):  
Sounding Rocket ◽  
Rotating Detonation Engine ◽  
Detonation Engine ◽  
Engine System ◽  
Rotating Detonation

Flight Demonstration of Detonation Engine System Using Sounding Rocket S-520-31: Flight Path and Attitude

2022 ◽  
Author(s):  
Hiroaki Watanabe ◽  
Koichi Matsuyama ◽  
Ken Matsuoka ◽  
Akira Kawasaki ◽  
Noboru Itouyama ◽  
...  
Keyword(s):  
Flight Path ◽  
Sounding Rocket ◽  
Detonation Engine ◽  
Engine System

Flight Demonstration of Detonation Engine System Using Sounding Rocket S-520-31: History from Development to Flight

2022 ◽  
Author(s):  
Noboru Itouyama ◽  
Koichi Matsuyama ◽  
Ken Matsuoka ◽  
Akira Kawasaki ◽  
Hiroaki Watanabe ◽  
...  
Keyword(s):  
Sounding Rocket ◽  
Detonation Engine ◽  
Engine System

Flight Demonstration of Detonation Engine System Using Sounding Rocket S-520-31: Performance of Pulse Detonation Engine

2022 ◽  
Author(s):  
Valentin Buyakofu ◽  
Ken Matsuoka ◽  
Koichi Matsuyama ◽  
Keisuke Goto ◽  
Akira Kawasaki ◽  
...  
Keyword(s):  
Sounding Rocket ◽  
Pulse Detonation Engine ◽  
Pulse Detonation ◽  
Detonation Engine ◽  
Engine System
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