Design and Development of Pulse Detonation Rocket Engine with Predetonator (original) (raw)
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A Characterized Status Report on Pulse Detonation Engine
INCAS BULLETIN
Pulse Detonation Engine (PDE), is an exciting propulsion technology for the future and has been able to seek considerable attention over the last era. It has the potential to work efficiently in the modern cosmos. It works on a Humphrey cycle offering a great opportunity, which outweighs the conventional Brayton cycle. The operating cycle of PDE starts with the fuel-oxidizer mixture, combustion and DDT followed by purging. The PDE combustion process, which is a unique process, leads to consistent and repeatable detonation waves. This pulsed detonation combustion process causes rapid burning of the fuel-oxidizer mixture, which cannot be seen in any other combustion process as it is a thousand times faster than any other mode of combustion. PDE not only holds the capability of running effectively up to Mach 5 but it also changes the technicalities in space propulsion. The present study deals with the categorization of design approach, thermal analysis,
INCAS BULLETIN
Pulse Detonation Engine (PDE), is an emerging and promising propulsive technology all over the world in the past few decades. A pulse detonation engine (PDE) is a type of propulsion system that uses detonation waves to combust the fuel and oxidizer mixture. Theoretically, a PDE can be operate from subsonic to hypersonic flight speeds. Pulsed detonation engines offer many advantages over conventional air-breathing engines and are regarded as potential replacements for air-breathing and rocket propulsion systems, for platforms ranging from subsonic unmanned vehicles, long-range transportation, high-speed vehicles, space launchers to space vehicles. This article highlights the operating cycle of PDE, starting with the fuel-oxidizer mixture, combustion and Deflagration to detonation transition (DDT) followed by purging. PDE combustion process, a unique process, leads to consistent and repeatable detonation waves. This pulsed detonation combustion process causes rapid burning of the fuel...
Numerical simulation and performances evaluation of the pulse detonation engine
MATEC Web of Conferences, 2018
A pulse detonation engine (PDE) is a type of propulsion system that uses detonation waves to combust the fuel and oxidizer mixture. The engine is pulsed because the mixture must be renewed in the combustor between each detonation wave. Theoretically, a PDE can operate from subsonic up to hypersonic flight speed. Pulsed detonation engines offer many advantages over conventional propulsion systems and are regarded as potential replacements for air breathing and rocket propulsion systems, for platforms ranging from subsonic unmanned vehicles, long range transports, high-speed vehicles, space launchers to space vehicles. The article highlights elements of the current state of the art, but also theoretical and numerical aspects of these types of unconventional engines. This paper presents a numerical simulation of a PDE at h=10000 m with methane as working fluid for stoichiometric combustion, in order to find out the detonation conditions.
Development of a Large Pulse Detonation Engine Demonstrator
47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2011
A test facility was designed and constructed to study pulse detonation engine (PDE) operations under a broad range of test parameters and to test and refine various subsystems and processes that are critical for a flight-weight PDE. The PDE combustor was designed to run on most common fuels, including kerosene, propane and hydrogen, with air or oxygen. A new ignition system was also built that features multiple low energy igniters located at the head manifold section of the engine, creating an impinging shock ignition when fired simultaneously. Instead of a separate initiator, an energetic mixture can be introduced in the ignition section to facilitate deflagration-to-detonation transition. The main sections of the combustor were fitted with fully enclosed water cooling passages. Kerosene fuel was preheated before mixing with preheated air in a mixing chamber. The fuel-air mixture and the purge air were injected into the engine at appropriate stages of the engine cycle using dual rotary valves, each having nine parallel ports. The fluid was injected into the combustor through ports located along the wall of the engine. The rotary valves were driven directly by a stepper motor. A pair of orifice plates were located downstream of the ignition zone for inducing deflagration-to-detonation transition. Dynamic pressure transducers and ion detectors were used for combustion diagnostics within the combustor. The various components of the engine were controlled via a data acquisition system, which was also used for monitoring the engine processes and for recording data.
(Midterm) Pulse Detonation System And Its Advancements By Abhi Sharma
Pulse detonation is a propulsion technology that involves detonation of fuel to produce thrust more efficiently than current engine systems. By literature survey and library research it is shown that Pulse Detonation Engine (PDE) technology is more efficient than current engine types by virtue of its mechanical simplicity and thermodynamic efficiency. As the PDE produces a higher specific thrust than comparable ramjet, scramjet engines at speeds of up to approximately Mach 2.3 to Mach 5, it is suitable for use as part of a multi-stage propulsion system. The PDE can provide static thrust for a ramjet or scramjet engine, or operate in combination with turbofan systems. As such, it sees potential applications in many sectors of the aerospace, aeronautic, and military industries. However, there remain engineering challenges that must be overcome before the PDE can see practical use. Current methods for initiating the detonation process need refinement. To this end, many government research bodies and a few private organizations around the world are working on PDS research & further development.
Review Article Review on Recent Advances in Pulse Detonation Engines
Pulse detonation engines (PDEs) are new exciting propulsion technologies for future propulsion applications. The operating cycles of PDE consist of fuel-air mixture, combustion, blowdown, and purging. The combustion process in pulse detonation engine is the most important phenomenon as it produces reliable and repeatable detonation waves. The detonation wave initiation in detonation tube in practical system is a combination of multistage combustion phenomena. Detonation combustion causes rapid burning of fuel-air mixture, which is a thousand times faster than deflagration mode of combustion process. PDE utilizes repetitive detonation wave to produce propulsion thrust. In the present paper, detailed review of various experimental studies and computational analysis addressing the detonation mode of combustion in pulse detonation engines are discussed. The effect of different parameters on the improvement of propulsion performance of pulse detonation engine has been presented in detail in this research paper. It is observed that the design of detonation wave flow path in detonation tube, ejectors at exit section of detonation tube, and operating parameters such as Mach numbers are mainly responsible for improving the propulsion performance of PDE. In the present review work, further scope of research in this area has also been suggested.
PULSE DETONATION ENGINE TECHNOLOGY: AN OVERVIEW
Pulse detonation is a propulsion technology that involves detonation of fuel to produce thrust more efficiently than current engine systems. By library research and an interview with Dr. Roger Reed of the Metals and Materials Engineering Department of the University of British Columbia, it is shown that Pulse Detonation Engine (PDE) technology is more efficient than current engine types by virtue of its mechanical simplicity and thermodynamic efficiency. As the PDE produces a higher specific thrust than comparable ramjet engines at speeds of up to approximately Mach 2.3, it is suitable for use as part of a multi-stage propulsion system. The PDE can provide static thrust for a ramjet or scramjet engine, or operate in combination with turbofan systems. As such, it sees potential applications in many sectors of the aerospace, aeronautic, and military industries. However, there remain engineering challenges that must be overcome before the PDE can see practical use. Current methods for initiating the detonation process need refinement. To this end, both Pratt & Whitney and General Electric have developed different processes to accomplish this. Also, current materials used in jet engines, such as Nickel-based super-alloys, are inadequate to withstand the extreme heat and pressure generated by the detonation cycle. Therefore, new materials must be developed for this purpose.
Innovative Trends in Pulse Detonation Engine, its Challenges and Suggested Solution
Journal of Basic and Applied Engineering Research, 2014
Pulse detonation engine (PDE) is an air-breathing intermittent combustion engine in which detonations are triggered at high frequencies through simultaneously burning and accelerating the fuel-air mixture. The generation shock waves are driven through a tube, creating a thrust. Shock Waves inside engine travels at either at subsonic or supersonic speed depending upon the physical parameters of tube, frequency of detonation and rate of injection of air-fuel mixture in the tube. Pulse detonation engine is getting considerable attention because of their superior performance parameters such as thermal efficiency and thrust/weight ratio over current traditional Rocket engine[1]. In this paper, the status of the theoretical and experimental study of Pulse Detonation Engine is presented. Secondly, a comparison of thermal efficiency of Pulse detonation Engine and generally used propulsion system (such as Rocket Engine) is studied and it is shown that efficiency of Pulse Detonation Engine is much higher. Also, the other advantages of Pulse Detonation Engine are discussed. Further, this paper presents a theoretical investigation of the problems preventing the widespread use of Pulse detonation Engine. In the end, a review of various methods which may overcome these challenges is provided, specifically, the approach of Detonation to Deflagration (DDT) method for solving Detonation Initiation problem is discussed in detail. The paper ends on a note of promising near future when Pulse Detonation Engines will become the staple for power generation and locomotion.
Pulse Detonation Engine - A Next Gen Propulsion
International Journal of Modern Engineering Research (IJMER)
Pulse detonation technology has the potential to revolutionise both in-atmosphere and space flight. Having an engine capable of running efficiently at Mach 5 will not only allow for faster, more efficient intercontinental travel, but will also change the way spacecrafts are launched. The preset paper discuss about the applications of Pulse detonation engines and different possible variants of the engine.