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Advanced Combustor Liner Cooling Concepts
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Book Synopsis Advanced Combustor Liner Cooling Concepts by : B. Simon
Download or read book Advanced Combustor Liner Cooling Concepts written by B. Simon and published by . This book was released on 1984 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Small gas turbine liner cooling is especially difficult due to the low combustor air flow and relatively large flame tube areas. Therefore, it is desirable to increase the cooling potential of the cooling air by application of combined convective-film cooling. Its advantage must be balanced carefully against the disadvantage of increased weight and production cost. The large number of variable parameters of a combined cooling configuration requires a computer model which allows the simulation of different cooling approaches. To verify this, model tests with various configurations were conducted in a 2D-cooling rig. Good agreement between measured and calculated liner temperatures could be achieved. Thus, the model is suitable to show under which conditions a marked decrease of wall temperature can be reached compared with the case of straight film cooling under the same conditions.
Download or read book 鄉土荘川 written by and published by . This book was released on 1982 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Compliant Metal Enhanced Convection Cooled Reverse-flow Annular Combustor by : Marc D. Paskin
Download or read book Compliant Metal Enhanced Convection Cooled Reverse-flow Annular Combustor written by Marc D. Paskin and published by . This book was released on 1994 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: A joint Army/NASA program was conducted to design, fabricate, and test an advanced, reverse-flow, small gas turbine combustor using a compliant metal enhanced (CME) convection wall cooling concept. The objectives of this effort were to develop a design method (basic design data base and analysis) for the CME cooling technique and tben demonstrate its application to an advanced cycle, small, reverse-flow combustor with 3000 F (1922 K) burner outlet temperature (BOT). The CME concept offers significant improvements in wall cooling effectiveness resulting in a large reduction in cooling air requirements. Therefore, more air is available for control of burner outlet temperature pattern in addition to the benefit of improved efficiency, reduced emissions, and smoke levels. Rig test results demonstrated the benefits and viability of the CME concept meeting or exceeding the aerothermal performance and liner wall temperature characteristics of similar lower temperature-rise combustors, achieving 0.15 pattern factor at 3000 F (1922 K) BOT, while utilizing approximately 80 percent less cooling air than conventional, film-cooled combustion systems.
Author :Exxon Research and Engineering Company. Government Research Laboratories Publisher : ISBN 13 : Total Pages :148 pages Book Rating :4.:/5 (3 download)
Book Synopsis Fundamental characterization of alternate fuel effects in continuous combustion systems by : Exxon Research and Engineering Company. Government Research Laboratories
Download or read book Fundamental characterization of alternate fuel effects in continuous combustion systems written by Exxon Research and Engineering Company. Government Research Laboratories and published by . This book was released on 1978 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of High-temperature Turbine Subsystem Technology to a "technology Readiness Status", Phase I by : A. Caruvana
Download or read book Development of High-temperature Turbine Subsystem Technology to a "technology Readiness Status", Phase I written by A. Caruvana and published by . This book was released on 1978 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of the Phase I ERDA High-Temperature Turbine Technology (HTTT) Program was to provide a ''Program and System Definition'' of the three-phase program which would culminate in the testing of a Technology Readiness Vehicle (TRV) at the end of a six-year period. The TRV is designed for use in a combined cycle using coal-derived fuels at a firing temperature of 2600°F; growth capability to 3000°F is projected. The Phase I results reported are based on a 2600°F gas turbine burning coal-derived fuels. The following major areas are covered: overall plant design descriptions; systems design descriptions; turbine subsystem design; combustor design; phase II proposed program; and phase III proposed program. Details regarding final results of each of these areas are presented. It is concluded that the water-cooled gas turbine in combined cycle has been shown to be capable of extremely attractive levels of performance, both in terms of efficiency and specific output. Coupled with the ability to tolerate a wide range of coal-derived fuels with minimum fuel treatment, an extremely attractive system is presented for the generation of electric power. Future technology development of the high-firing-temperature water-cooled gas turbine is expected to result in the commercial introduction of this concept in combined cycles by the late 1980's or early 1990's.
Book Synopsis Novel Combustion Concepts for Sustainable Energy Development by : Avinash K Agarwal
Download or read book Novel Combustion Concepts for Sustainable Energy Development written by Avinash K Agarwal and published by Springer. This book was released on 2014-12-19 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises research studies of novel work on combustion for sustainable energy development. It offers an insight into a few viable novel technologies for improved, efficient and sustainable utilization of combustion-based energy production using both fossil and bio fuels. Special emphasis is placed on micro-scale combustion systems that offer new challenges and opportunities. The book is divided into five sections, with chapters from 3-4 leading experts forming the core of each section. The book should prove useful to a variety of readers, including students, researchers, and professionals.
Book Synopsis GAS Turbine Combustion, Second Edition by : Arthur H. Lefebvre
Download or read book GAS Turbine Combustion, Second Edition written by Arthur H. Lefebvre and published by CRC Press. This book was released on 1998-09-01 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: This revised edition provides understanding of the basic physical, chemical, and aerodynamic processes associated with gas turbine combustion and their relevance and application to combustor performance and design. It also introduces the many new concepts for ultra-low emissions combustors, and new advances in fuel preparation and liner wall-cooling techniques for their success. It details advanced and practical approaches to combustor design for the clean burning of alternative liquid fuels derived from oil shades, tar sands, and coal. Additional topics include diffusers, combustion performance fuel injection, combustion noise, heat transfer, and emissions.
Book Synopsis Improved Understanding of Combustor Liner Cooling by : Robert Mattthew Goodro
Download or read book Improved Understanding of Combustor Liner Cooling written by Robert Mattthew Goodro and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Instrumentation for Combustion and Flow in Engines by : D.F.G. Durão
Download or read book Instrumentation for Combustion and Flow in Engines written by D.F.G. Durão and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Much has been said and written about the abilities of modern instrumentation to help solve problems of combustion in engines. In the main, however, the design and fabr ication of combustion chambers continues to be based on extrapolation of exper ience gained from use and rig tests, with little input from advanced techniques such as those based on optical diagnotics. At the same time, it has become increasingly difficult to design better combustion chambers without knowledge of the relevant flow processes. Thus, the future must involve improved understanding which, in turn, will require detailed measurements of velocity, temperature and concentration. The need to narrow the gap between current industrial practice and the acquisition and implementation of improved techniques motivated the organization of the Advanced Study Institute upon which this volume is based. This Institute on Instrumentation for Combustion and Flow in Engines was arranged to display the needs of industry and the possibilities made available by modern instrumentation and, at the same time, to make clear the relative advantages of optical and probe techniques. Held at Vimeiro during the period from 13 to 26 September, 1987, the Institute was attended by 120 participants and 16 invited lecturers.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Energy Efficient Engine Pin Fin and Ceramic Composite Segmented Liner Combustor Sector Rig Test Report by :
Download or read book Energy Efficient Engine Pin Fin and Ceramic Composite Segmented Liner Combustor Sector Rig Test Report written by and published by . This book was released on 1986 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Environmental Cooling Concepts for Supersonic Aircraft by : V. K. Rajpaul
Download or read book Advanced Environmental Cooling Concepts for Supersonic Aircraft written by V. K. Rajpaul and published by . This book was released on 1978 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Low-Emissions Catalytic Combustor Program by :
Download or read book Advanced Low-Emissions Catalytic Combustor Program written by and published by . This book was released on 1981 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Task I of the Phase I program, six catalytic combustor concepts were defined. Analysis and evaluation of these six concepts were made under Task II. Major design considerations included low emissions, performance, safety, durability, installations, operations and development. On the basis of these considerations the two most promising concepts were selected. Refined analysis and preliminary design work was conducted on these two most promising concepts in Task III. The selected concepts were required to fit within the combustor chamber dimensions of the reference engine. This is achieved by using a dump diffuser discharging into a plenum chamber between the compressor discharge and the turbine inlet, with the combustors overlaying the prediffuser and the rear of the compressor. To enhance maintainability, the outer combustor case for each concept is designed to translate forward for accessibility to the catalytic reactor, liners and high pressure turbine area. The catalytic reactor is self-contained with air-cooled canning on a resilient mounting. Both selected concepts employed integrated engine-starting approaches to raise the catalytic reactor up to operating conditions. Advanced liner schemes are used to minimize required cooling air. The two selected concepts respectively employ fuel-rich initial thermal reaction followed by rapid quench and subsequent fuel-lean catalytic reaction of carbon monoxide, and, fuel-lean thermal reaction of some fuel in a continuously operating pilot combustor with fuel-lean catalytic reaction of remaining fuel in a radially-staged main combustor.
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.
Book Synopsis Handbook Of Flow Visualization by : Wen Jei Yang
Download or read book Handbook Of Flow Visualization written by Wen Jei Yang and published by Routledge. This book was released on 2018-12-19 with total page 723 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions from some of the world's leading experts, the second edition of this classic reference compiles all major techniques of flow visualization and demonstrates their applications in all fields of science and technology. A new chapter has been added that covers flow visualization applications in large wide tunnels for airplane and automobile testing. Several important examples of applications are included. A second new chapter details the use of infrared (IR) cameras for detecting and observing the boundary layer transition in industrial wind tunnels and flight testing of commercial transport airplanes. A final new chapter has been added on multiphase flow and pulsed-light velocimetry.
Book Synopsis Advanced Cooling Techniques for High-pressure Hydrocarbon-fueled Engines by :
Download or read book Advanced Cooling Techniques for High-pressure Hydrocarbon-fueled Engines written by and published by . This book was released on 1979 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. House. Committee on Science and Astronautics Publisher : ISBN 13 : Total Pages :1220 pages Book Rating :4.:/5 (319 download)
Book Synopsis 1972 NASA Authorization by : United States. Congress. House. Committee on Science and Astronautics
Download or read book 1972 NASA Authorization written by United States. Congress. House. Committee on Science and Astronautics and published by . This book was released on 1971 with total page 1220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
