Innovative Trends in Pulse Detonation Engine, its Challenges and Suggested Solution (original) (raw)
Related papers
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.
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.
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,
(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.
Present Status of Pulse and Rotating Detonation Engine Research
2015
A self-sustained detonation wave propagates at the speed of 2–3 km/s, and it induces the exothermic chemical reaction in a tube filled with a premixed gas. An engine with a detonation wave intermittently generated in a straight tube is called a pulse detonation engine (PDE) [1–7], and an engine with a detonation wave rotating continuously in annular gap is called a rotating detonation engine (RDE) [8]. In the detonation combustion process, the reactant is compressed by the shock wave, and it is recombined to be the product at high temperature (the generated entropy for the product is small). Therefore, engines that use a detonation cycle have greater thermal efficiency than engines with constant-pressure combustion cycle. This cycle analysis was done by Zel’dovich [9] and has been confirmed by many researchers using various gaseous models [10–12].
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...
Thermodynamic Performance of Pulse Detonation Engine: A Technical Report
SSRN Electronic Journal, 2019
The pulse detonation engine (PDE) is a new concept that utilizes supersonic detonation waves in the propulsion or producing specific impulse. The performance of PDE has been analysed by experimental and analytical from the last decades. The number of researcher develops different theories, which is continuously increasing the PDE propulsive performance. The thermodynamic efficiency of the cyclic operation is discussed and compare to each other. In the present paper, five different analytical approaches such as ideal Brayton cycle, ideal Humphery Cycle, and ideal PDE cycle along with C-J model and ZND model have been studied. The consideration of assumptions and neglecting loses, the theoretical performance of the pulse detonation engine become higher than the experimental and computational predicted performance. The thermodynamic parameters such as pressure, temperature density, Mach number and detonation wave velocity are theoretically calculated inside the combustion chamber and exit of the tube.
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.
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.
AN EXPERIMENTAL STUDY ON KEROSENE BASED PULSE DETONATION ENGINE
The paper summarizes the experimental study on kerosene based pulse detonation engine in a tube for three different equivalence ratios. The kerosene was vaporized in a pre-evaporator before injected into combustion chamber. Pre-heated air was injected through a nozzle into the detonation tube. The charged tube was electrically ignited near the injector end. To enhance the DDT and to reduce the transition distance Shchelkin spiral was used inside the tube. Comparison of measured pressure at different locations of the tube with the CEA values were made that confirms to have crossed the CJ point and provide a stable detonation.