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Effect Of Effusion Cooling Pattern Near The Dilution Hole For A Double Walled Combustor Liner
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Book Synopsis Effect of Effusion Cooling Pattern Near the Dilution Hole for a Double-Walled Combustor Liner by : Adam Shrager
Download or read book Effect of Effusion Cooling Pattern Near the Dilution Hole for a Double-Walled Combustor Liner written by Adam Shrager and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas turbine engines are an important technology for power generation and aircraft propulsion due to their relatively high efficiencies compared to other methods of power generation. To further improve the efficiency, pressure ratios in modern gas turbine engines continue to rise, which also causes higher temperatures in the turbine and combustor. As such, advanced cooling methods are necessary to protect the engine components from the high temperatures that occur in the engine and to maintain durability. Modern combustors commonly use a double-walled liner with impingement and effusion cooling plates. The impingement cooling enhances the backside cooling, while the effusion cooling creates a protective film on the external surface. In addition, modern combustor liners also include large dilution holes to promote mixing of the air and fuel in a process that reduces NOx emissions. However, the dilution jets interrupt the cooling film, making it difficult to cool the combustor walls, especially near the dilution holes.This study evaluates the surface cooling effectiveness and flowfield for a double-walled combustor liner with impingement and effusion cooling as well as a row of large dilution holes. The effusion cooling hole pattern was varied with three different hole patterns in the region surrounding the dilution holes including: no additional effusion holes, effusion holes blowing radially outward from the dilution holes, and effusion holes blowing radially inward toward the dilution holes. The momentum flux ratio of the dilution jets and approaching freestream turbulence were also varied. The effusion hole patterns with addition effusion holes surrounding the dilution holes improved the cooling effectiveness through in-hole convection. For each panel geometry, increasing the momentum flux ratio generally increased effectiveness levels with diminishing returns. In addition, decreasing the approaching freestream turbulence intensity increased the effectiveness across the panels. Flowfield measurements showed that the outward blowing effusion jets created a vortex that transported a significant amount of freestream fluid toward the surface at the leading edge of the dilution hole.
Download or read book ASME Technical Papers written by and published by . This book was released on 2000 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Paper written by and published by . This book was released on 2000 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Art of Measuring in the Thermal Sciences by : Josua Meyer
Download or read book The Art of Measuring in the Thermal Sciences written by Josua Meyer and published by CRC Press. This book was released on 2020-11-05 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Art of Measuring in the Thermal Sciences provides an original state-of-the-art guide to scholars who are conducting thermal experiments in both academia and industry. Applications include energy generation, transport, manufacturing, mining, processes, HVAC&R, etc. This book presents original insights into advanced measurement techniques and systems, explores the fundamentals, and focuses on the analysis and design of thermal systems. Discusses the advanced measurement techniques now used in thermal systems Links measurement techniques to concepts in thermal science and engineering Draws upon the original work of current researchers and experts in thermal-fluid measurement Includes coverage of new technologies, such as micro-level heat transfer measurements Covers the main types of instrumentation and software used in thermal-fluid measurements This book offers engineers, researchers, and graduate students an overview of the best practices for conducting sound measurements in the thermal sciences.
Book Synopsis Gas Turbine Combustion by : Arthur H. Lefebvre
Download or read book Gas Turbine Combustion written by Arthur H. Lefebvre and published by CRC Press. This book was released on 2010-04-26 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the developments in gas turbine combustion technology that have occurred in the last decade, Gas Turbine Combustion: Alternative Fuels and Emissions, Third Edition provides an up-to-date design manual and research reference on the design, manufacture, and operation of gas turbine combustors in applications ranging from aeronautical to po
Book Synopsis Gas Turbine Engineering Handbook by : Meherwan P. Boyce
Download or read book Gas Turbine Engineering Handbook written by Meherwan P. Boyce and published by Elsevier. This book was released on 2017-09-01 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Gas Turbine Engineering Handbook has been the standard for engineers involved in the design, selection, and operation of gas turbines. This revision includes new case histories, the latest techniques, and new designs to comply with recently passed legislation. By keeping the book up to date with new, emerging topics, Boyce ensures that this book will remain the standard and most widely used book in this field. The new Third Edition of the Gas Turbine Engineering Hand Book updates the book to cover the new generation of Advanced gas Turbines. It examines the benefit and some of the major problems that have been encountered by these new turbines. The book keeps abreast of the environmental changes and the industries answer to these new regulations. A new chapter on case histories has been added to enable the engineer in the field to keep abreast of problems that are being encountered and the solutions that have resulted in solving them. - Comprehensive treatment of Gas Turbines from Design to Operation and Maintenance. In depth treatment of Compressors with emphasis on surge, rotating stall, and choke; Combustors with emphasis on Dry Low NOx Combustors; and Turbines with emphasis on Metallurgy and new cooling schemes. An excellent introductory book for the student and field engineers - A special maintenance section dealing with the advanced gas turbines, and special diagnostic charts have been provided that will enable the reader to troubleshoot problems he encounters in the field - The third edition consists of many Case Histories of Gas Turbine problems. This should enable the field engineer to avoid some of these same generic problems
Book Synopsis Mechanical, Industrial and Manufacturing Technologies by : Li Kai
Download or read book Mechanical, Industrial and Manufacturing Technologies written by Li Kai and published by Trans Tech Publications Ltd. This book was released on 2012-06-26 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings consist of the fully refereed papers presented at the conference. The main conference themes were Mechanical Engineering, Materials and Energy. The peer-reviewed papers are divided into six chapters: Research in Numerical Simulation and Optimisation; Characteristic Studies of Mechanical and Material Systems; Chaotic States and Analysis of Systems; Vibrational Analysis and Mechanics of Structures etc.; Materials Science and Technologies; Mechanical/Automotive Systems and Allied Topics
Book Synopsis Gas Turbine Heat Transfer and Cooling Technology, Second Edition by : Je-Chin Han
Download or read book Gas Turbine Heat Transfer and Cooling Technology, Second Edition written by Je-Chin Han and published by CRC Press. This book was released on 2012-11-27 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive reference for engineers and researchers, Gas Turbine Heat Transfer and Cooling Technology, Second Edition has been completely revised and updated to reflect advances in the field made during the past ten years. The second edition retains the format that made the first edition so popular and adds new information mainly based on selected published papers in the open literature. See What’s New in the Second Edition: State-of-the-art cooling technologies such as advanced turbine blade film cooling and internal cooling Modern experimental methods for gas turbine heat transfer and cooling research Advanced computational models for gas turbine heat transfer and cooling performance predictions Suggestions for future research in this critical technology The book discusses the need for turbine cooling, gas turbine heat-transfer problems, and cooling methodology and covers turbine rotor and stator heat-transfer issues, including endwall and blade tip regions under engine conditions, as well as under simulated engine conditions. It then examines turbine rotor and stator blade film cooling and discusses the unsteady high free-stream turbulence effect on simulated cascade airfoils. From here, the book explores impingement cooling, rib-turbulent cooling, pin-fin cooling, and compound and new cooling techniques. It also highlights the effect of rotation on rotor coolant passage heat transfer. Coverage of experimental methods includes heat-transfer and mass-transfer techniques, liquid crystal thermography, optical techniques, as well as flow and thermal measurement techniques. The book concludes with discussions of governing equations and turbulence models and their applications for predicting turbine blade heat transfer and film cooling, and turbine blade internal cooling.
Book Synopsis Development of the Preliminary Combustor Design System PRECODES by : Nima Pegemanyfar
Download or read book Development of the Preliminary Combustor Design System PRECODES written by Nima Pegemanyfar and published by . This book was released on 2008 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Combustion Noise written by Anna Schwarz and published by Springer Science & Business Media. This book was released on 2009-06-17 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: November, 2008 Anna Schwarz, Johannes Janicka In the last thirty years noise emission has developed into a topic of increasing importance to society and economy. In ?elds such as air, road and rail traf?c, the control of noise emissions and development of associated noise-reduction techno- gies is a central requirement for social acceptance and economical competitiveness. The noise emission of combustion systems is a major part of the task of noise - duction. The following aspects motivate research: • Modern combustion chambers in technical combustion systems with low pol- tion exhausts are 5 - 8 dB louder compared to their predecessors. In the ope- tional state the noise pressure levels achieved can even be 10-15 dB louder. • High capacity torches in the chemical industry are usually placed at ground level because of the reasons of noise emissions instead of being placed at a height suitable for safety and security. • For airplanes the combustion emissions become a more and more important topic. The combustion instability and noise issues are one major obstacle for the introduction of green technologies as lean fuel combustion and premixed burners in aero-engines. The direct and indirect contribution of combustion noise to the overall core noise is still under discussion. However, it is clear that the core noise besides the fan tone will become an important noise source in future aero-engine designs. To further reduce the jet noise, geared ultra high bypass ratio fans are driven by only a few highly loaded turbine stages.
Book Synopsis Proceedings of the ASME Turbo Expo ... by :
Download or read book Proceedings of the ASME Turbo Expo ... written by and published by . This book was released on 2005 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sustainable Development for Energy, Power, and Propulsion by : Ashoke De
Download or read book Sustainable Development for Energy, Power, and Propulsion written by Ashoke De and published by Springer Nature. This book was released on 2020-09-03 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises state-of-the-art advances in energy, combustion, power, propulsion, environment, focusing on the production and utilization of fossil fuels, alternative fuels and biofuels. It is written by internationally renowned experts who provide the latest fundamental and applied research innovations on cleaner energy production as well as utilization for a wide range of devices extending from micro scale energy conversion to hypersonic propulsion using hydrocarbon fuels. The tailored technical tracks and contributions are portrayed in the respective field to highlight different but complementary views on fuels, combustion, power and propulsion and air toxins with special focus on current and future R&D needs and activities. This book will serve as a useful reference for practicing engineers, research engineers and managers in industry and research labs, academic institutions, graduate students, and final year undergraduate students in mechanical, chemical, aerospace, energy, and environmental engineering.
Book Synopsis Proceedings of the ASME Turbo Expo 2012 by :
Download or read book Proceedings of the ASME Turbo Expo 2012 written by and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Combustion and Aerothermal Technologies by : Nick Syred
Download or read book Advanced Combustion and Aerothermal Technologies written by Nick Syred and published by Springer. This book was released on 2007-10-16 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here readers will find a summary of proceedings at a highly important NATO workshop. The ARW Advanced Combustion and Aerothermal Technologies: Environmental Protection and Pollution Reductions, was held in Kiev, May 2006. The workshop was co-directed by Profs. N. Syred and A.Khalatov, winners of the NATO Scientific Prize 2002, and was organized by the Institute of Thermophysics (Ukraine) and Cardiff University, UK. The primary workshop objective was to assess the existing knowledge on advanced combustion and aerothermal technologies providing reduced environmental impact.
Book Synopsis Extractive Metallurgy of Niobium by : A.K. Suri
Download or read book Extractive Metallurgy of Niobium written by A.K. Suri and published by Routledge. This book was released on 2017-11-13 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growth and development witnessed today in modern science, engineering, and technology owes a heavy debt to the rare, refractory, and reactive metals group, of which niobium is a member. Extractive Metallurgy of Niobium presents a vivid account of the metal through its comprehensive discussions of properties and applications, resources and resource processing, chemical processing and compound preparation, metal extraction, and refining and consolidation. Typical flow sheets adopted in some leading niobium-producing countries for the beneficiation of various niobium sources are presented, and various chemical processes for producing pure forms of niobium intermediates such as chloride, fluoride, and oxide are discussed. The book also explains how to liberate the metal from its intermediates and describes the physico-chemical principles involved. It is an excellent reference for chemical metallurgists, hydrometallurgists, extraction and process metallurgists, and minerals processors. It is also valuable to a wide variety of scientists, engineers, technologists, and students interested in the topic.
Download or read book Renewable Energy written by Tolga Taner and published by BoD – Books on Demand. This book was released on 2021-02 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses renewable energy resources and systems as well as energy efficiency. It contains twenty-three chapters over six sections that address a multitude of renewable energy types, including solar and photovoltaic, biomass, hydroelectric, and geothermal. The information presented herein is a scientific contribution to energy and environmental regulations, quality and efficiency of energy services, energy supply security, energy market-based approaches, government interventions, and the spread of technological innovation.
Book Synopsis Heat Transfer and Cooling in Gas Turbines by :
Download or read book Heat Transfer and Cooling in Gas Turbines written by and published by . This book was released on 1985 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
