Radiation/Catalytic Augmented Combustion PDF Download
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Author: A. E. Cerkanowicz
Publisher:
ISBN:
Category :
Languages : en
Pages : 108
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Book Description
Two novel concepts for extending aircraft operational range have been researched under this contract. They are radiative and catalytic augmentation techniques. The feasibility of utilizing these techniques to alter (augment) combustion initiation and reaction kinetics which restrict combustor operation via limits on flammability, flame propagation, ignition and stability has been investigated. Both techniques have demonstrated the potential to improve combustion processes. The radiative technique under laboratory static conditions has successfully ignited fuel-air mixtures, and has enhanced combustion processes, utilizing pulsed and continuous vacuum ultraviolet light sources. Similarly, the catalytic technique has broadened stability limits under normally difficult fuel lean, low temperature conditions. Complementary efforts have focused on the developement of analytical capabilities required for modeling the radiative and catalytic techniques. (Author).
Author: A. E. Cerkanowicz
Publisher:
ISBN:
Category :
Languages : en
Pages : 108
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Book Description
Two novel concepts for extending aircraft operational range have been researched under this contract. They are radiative and catalytic augmentation techniques. The feasibility of utilizing these techniques to alter (augment) combustion initiation and reaction kinetics which restrict combustor operation via limits on flammability, flame propagation, ignition and stability has been investigated. Both techniques have demonstrated the potential to improve combustion processes. The radiative technique under laboratory static conditions has successfully ignited fuel-air mixtures, and has enhanced combustion processes, utilizing pulsed and continuous vacuum ultraviolet light sources. Similarly, the catalytic technique has broadened stability limits under normally difficult fuel lean, low temperature conditions. Complementary efforts have focused on the developement of analytical capabilities required for modeling the radiative and catalytic techniques. (Author).
Author: Anthony E. Cerkanowicz
Publisher:
ISBN:
Category :
Languages : en
Pages : 33
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Book Description
Radiative initiation and enhancement of combustion in unsensitized fuel-air mixtures via the photodissociation of oxygen molecules and combustion intermediary species is being investigated. Pulsed VUV (vacuum ultraviolet) light sources and continuous UV (ultraviolet) light sources are being used for this purpose. Experimental efforts are directed at elucidation of light source conversion efficiency and spectral characteristics, and reactant mixture-photon interactions. A complimentary effort involves the development of analytical capability required for modeling photochemical initiation and enhancement of combustion. (Author).
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 702
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Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 912
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Author: Moshe David
Publisher:
ISBN:
Category :
Languages : en
Pages : 55
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Book Description
Radiative augmented combustion is based on the fact that radiation of selected wavelengths is capable of photodissociating stable molecules, combustion intermediates and other inhibiting species into reactive radicals. Subsequent increases in concentrations of these radicals can modify the overall kinetics and produce radiative ignition and combustion enhancements. The potential of this technique was previously demonstrated under static conditions. Recently, it has been also demonstrated under flow conditions, with advanced vacuum ultraviolet (VUV) and ultraviolet (UV) light sources. This program emphasizes research on the interaction between VUV/UV radiation and combustion under flow conditions. The main objective is to demonstrate proof of concept by radiatively igniting combustible mixtures at conditions where thermal ignition is unreliable. Additional objectives are to provide non-intrusive (optical) flameholding and to increase flame speed. Another important goal is to improve the fundamental understanding of the role of photochemical reactions within the whole kinetic scheme, and ultimately to identify the most effective photodissociative path. Consequently, the program is divided into two main subjects: ignition and enhancement.
Author: Zhongli Pan
Publisher: CRC Press
ISBN: 1439858578
Category : Technology & Engineering
Languages : en
Pages : 323
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Book Description
It’s been nearly 40 years since the last book on infrared heating for food processing was published, and in the meantime, the field has seen significant progress in understanding the mechanism of the infrared (IR) heating of food products and interactions between IR radiation and food components. Infrared Heating for Food and Agricultural Processing presents the latest applications of IR heating technology, focusing on thermal processing of food and agricultural products. Coverage Ranges from Fundamentals to Economic Benefits With an emphasis on novel application, the text includes chapters that address such topics as: Infrared heating system design Drying Blanching Baking Thawing Pest management Food safety improvement Where applicable, this readily accessible guide reviews case studies to address specific industrial issues and the economic benefits of IR heating. Infrared Heating for Food and Agricultural Processing is a well-organized resource for food processing engineers and also quality control and safety managers in food processing and food manufacturing operations.
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 518
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 542
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A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)
Author:
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ISBN:
Category :
Languages : en
Pages : 768
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Author:
Publisher:
ISBN:
Category : Government reports announcements & index
Languages : en
Pages : 1236
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