Pulse detonation engines use the detonation wave for aerospace propulsion. Unintentional detonation when deflagration is desired is a problem in some devices. In internal combustion engines it is called engine knocking or pinging or pinking, and it causes a loss of power, excessive heating, and eventual engine failure in some cases. From Wikipedia, the free encyclopedia. Explosion at supersonic velocity.
For other uses, see Detonation disambiguation. Not to be confused with Denotation.
Oxford University Press. Retrieved 21 Feb California Press.
Therefore, the desired trade-off must be done in a stochastic framework which could provide a suitable environment for designing and evaluating different knock control strategies performances with rigorous statistical properties. It has been theorized [ citation needed ] that lead, steam, and the like interfere with some of the various oxidative changes that occur during combustion and hence the reduction in knock. If successful, this technology would assist with reducing both national energy consumption and greenhouse gas emissions. Created by the primary initiation of a small amount of high explosives using friction, spark, flame, impact or electromagnetic radiation, this resulting shock front is powerful enough to launch a secondary explosion in relatively less-sensitive explosive materials like Trinitrotoluene TNT. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! View Full GeoRef Record.
Fundamentals of fire and explosion. Monograph Series. Bretherick's Handbook of Reactive Chemical Hazards 7th ed. London: Butterworths.
Berthelot and P. Mallard and H. On the rate of explosion in gases. On the propagation of chemical reactions in gases. Pures Appl. And 2.
Theory of Detonation. New York: Academic Press. Progress report on "Theory of Detonation Waves" Report. Ascension number ADB Annalen der Physik. Bibcode : AnP Philosophical Magazine.
Series 5. Archived PDF from the original on Archived from the original PDF on Nature Physics. Bibcode : NatPh Journal of Fluid Mechanics. Bibcode : JFM Edwards; G. Thomas; M.
Detonation is a type of combustion involving a supersonic exothermic front accelerating through a medium that eventually drives a shock front propagating. Knocking in spark-ignition internal combustion engines occurs when combustion of some of the The phenomenon of detonation was first observed and described by Harry Ricardo during experiments carried out between and to.
Nettleton Oppenheim; N. Manson; R. Soloukhin; J. Bowen eds. Theoretical Chemistry Accounts. If successful, this technology would assist with reducing both national energy consumption and greenhouse gas emissions.
These combustors would enable more electricity to be generated from a given amount of natural gas, increasing the efficiency of gas turbine engines while reducing greenhouse gas emissions. PWR will design and build continuous detonation combustors and test them in a simulated gas turbine environment to demonstrate the feasibility of incorporating the technology into natural gas-fueled turbine electric power generators.
Potential Impact:. Enabling more efficient and cost-effective use of natural gas for power generation would improve the stability of the electric grid and increase our national energy security by supporting abundant domestic energy resources.
Natural gas power generation at scale could result in 80 million metric tons of carbon dioxide emissions reduction per year. Press and General Inquiries Email:.
Project Contact:. Project Contact Email:. Partners United Technologies Research Center. Release Date:. Grid Logic - High-Power Superconductors.