Author: William Doyle CranneyPublisher:
ISBN:
Category : Gas flow
Languages : en
Pages : 88
Book Description
Particle Dynamics in the Mixing of a Particle Laden Stream with a Secondary Stream in a Duct
Author: William Doyle CranneyPublisher:
ISBN:
Category : Gas flow
Languages : en
Pages : 88
Book Description
Particle Nonequilibrium Effects in Mixing and Combustion of Ducted, Particle-Laden Flows
Author: L. Douglas SmootPublisher:
ISBN:
Category :
Languages : en
Pages : 33
Book Description
Development of a model has been previously reported for describing combustion of a particle-laden stream which is mixing with a subsonic secondary stream in a duct. This paper presents an extension of this model to include particle non-equilibrium effects. Particle drag, thermal lag, and particle ignition and combustion effects are considered. A series of parametric calcuations for typical metal-loaded, air-augmented systems, showing effects of particle size, secondary air conditions, and secondary duct pressure on metal combustion efficiency are reported. Influences of low secondary duct pressure are examined. A new turbulent mixing coefficient is used for the computations. (Author).
Government Reports Announcements
Author: Leading-edge Electric Power Research
Author: Cian M. O'SullivanPublisher: Nova Publishers
ISBN: 9781600219818
Category : Business & Economics
Languages : en
Pages : 360
Book Description
This book presents new and significant research on electric power. The world is becoming increasingly electrified. For the foreseeable future, coal will continue to be the dominant fuel used for electric power production. The low cost and abundance of coal is one of the primary reasons for this. Electric power transmission, a process in the delivery of electricity to consumers, is the bulk transfer of electrical power. Typically, power transmission is between the power plant and a substation near a populated area. Electricity distribution is the delivery from the substation to the consumers. Due to the large amount of power involved, transmission normally takes place at high voltage (110 kV or above). Electricity is usually transmitted over long distance through overhead power transmission lines. Underground power transmission is used only in densely populated areas due to its high cost of installation and maintenance, and because the high reactive power gain produces large charging currents and difficulties in voltage management. A power transmission system is sometimes referred to colloquially as a "grid"; however, for reasons of economy, the network is rarely a true grid. Redundant paths and lines are provided so that power can be routed from any power plant to any load centre, through a variety of routes, based on the economics of the transmission path and the cost of power. Much analysis is done by transmission companies to determine the maximum reliable capacity of each line, which, due to system stability considerations, may be less than the physical or thermal limit of the line. Deregulation of electricity companies in many countries has led to renewed interest in reliable economic design of transmission networks.
Masters Theses and Doctoral Dissertations in the Pure and Applied Sciences Accepted by Colleges and Universities of the United States
Author: Turbulent coherent structures, Secondary currents and Sediment ridges
Author: Scherer, Markus MaximilianPublisher: KIT Scientific Publishing
ISBN: 3731513188
Category :
Languages : en
Pages : 348
Book Description
The origin of secondary currents and subaqueous sediment patterns in natural rivers is analysed from first principles. For this purpose, simulations of sediment transport in canonical turbulent open channel flows are performed using a numerical technique that resolves all relevant flow scales and the dynamics of the individual sand grains. The high-fidelity datasets reveal the fundamental importance of individual coherent structures for the development of sediment patterns and secondary flows.
International Aerospace Abstracts
Author: Master's Theses and Doctoral Dissertations in the Pure and Applied Sciences
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 186
Book Description
Author: 
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