Download or read book Gas Seal Leakage at High Temperature written by Alain Anderson and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Reducing secondary leakage is a common challenge in numerous machines, particularly in steam and gas turbines. Too large leakage in seals produces a substantial loss in efficiency and power delivery with an increase in specific fuel consumption. Various seal types exist, each with unique advantages and disadvantages as per leakage, power loss, and wear. Labyrinth seals are most common due to their simple design and low cost. Their main drawback is a too high leakage due to enlarged (worn) clearances when a rotor vibrates. More complicated seal types, such as brush seals can withstand rotor excursions and ensure lower leakage rates than with labyrinth seals. Brush seals utilize a bristle bed which contacts the rotor and wears out thereby reducing leakage performance. The HALO[superscript TM] seal, an all-metal seal with flexibly supported shoes, is engineered as a clearance control seal to reduce leakage even more, in particular for operation with high pressure differentials and with high surface rotor speeds. Static leakage tests with hot air at a high temperature (max. 300°C) conducted in a test rig holding a labyrinth seal and a novel all-metal seal (HALO[superscript TM] seal), both of the same diameter, length and clearance, show the novel seal leaks ~1/5 the flow of a labyrinth seal for pressure ratios (P[subscript s]/P[subscript a]) > 3.5. The savings in leakage are maximized during operation at high pressure differentials. Leakage measurements with a rotor spinning to a maximum speed of 2,700 rpm (surface speed = 23.6 m/s) produce a slight decrease in leakage with increasing rotor speed. The research product is a reliable leakage data base enabling the application of a state of the art sealing technology that increases system efficiency by reducing leakage and extends maintenance intervals by eliminating wear of components. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/151242
Download or read book NASA Technical Note written by and published by . This book was released on 1969 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gas Turbine Engineering Handbook written by Meherwan P. Boyce and published by Elsevier. This book was released on 2011-11-23 with total page 993 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by one of the field's most well known experts, the Gas Turbine Engineering Handbook has long been the standard for engineers involved in the design, selection, maintenance and operation of gas turbines. With far reaching, comprehensive coverage across a range of topics from design specifications to maintenance troubleshooting, this one-stop resource provides newcomers to the industry with all the essentials to learn and fill knowledge gaps, and established practicing gas turbine engineers with a reliable go-to reference. This new edition brings the Gas Turbine Engineering Handbook right up to date with new legislation and emerging topics to help the next generation of gas turbine professionals understand the underlying principles of gas turbine operation, the economic considerations and implications of operating these machines, and how they fit in with alternative methods of power generation. - The most comprehensive one-stop source of information on industrial gas turbines, with vital background, maintenance information, legislative details and calculations combined in an essential all-in-one reference - Written by an industry-leading consultant and trainer and suitable for use as a training companion or a reliable dip-in guide - Includes hard-won information from industry experts in the form of case histories that offer practical trouble-shooting guidance and solutions
Download or read book Gas Thermohydrodynamic Lubrication and Seals written by Bai Shaoxian and published by Academic Press. This book was released on 2019-07-10 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas Thermohydrodynamic Lubrication and Seals provides contemporary theory and methods for thermo-hydrodynamic lubrication analysis in the design of gas bearings and seals. The title includes information on gas state equations and gas property, derivation of gas thermohydrodynamic lubrication equations, the theory of isothermal gas lubrication, thermal gas lubrication of rigid surfaces, gas thermoelastic hydrodynamic lubrication of face seals, vapor-condensed gas lubrication of face seals, experimental methods, and the design of gas face seals. Readers will find state-of-the-art, practical knowledge based on fifty years of research and application. - Describes thermohydrodynamic lubrication analysis for the design of gas bearings and seals - Considers the increased operational speed, pressure and temperature of mechanical equipment in relation to gas bearings and seals - Describes multi-field coupled gas lubrication theory and analytical methods - Provides a model and detailed data on the lubricating properties of typical gas bearings and seals - Gives comprehensive coverage of the field based on a half-century of research and application
Download or read book Applied Process Design for Chemical and Petrochemical Plants Volume 3 written by Ernest E. Ludwig and published by Elsevier. This book was released on 2001-08-13 with total page 713 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third edition of Applied Process Design for Chemical and Petrochemical Plants, Volume 3, is completely revised and updated throughout to make this standard reference more valuable than ever. It has been expanded by more than 200 pages to include the latest technological and process developments in heat transfer, refrigeration, compression and compression surge drums, and mechanical drivers. Like other volumes in this classic series, this one emphasizes how to apply techniques of process design and how to interpret results into mechanical equipment details. It focuses on the applied aspects of chemical engineering design to aid the design and/or project engineers in rating process requirements, specifying for purchasing purposes, and interpreting and selecting the mechanical equipment needed to satisfy the process functions. Process chemical engineering and mechanical hydraulics are included in the design procedures.Includes updated information that allows for efficiency and accuracy in daily tasks and operationsPart of a classic series in the industry
Download or read book Forsthoffer s Best Practice Handbook for Rotating Machinery written by William E. Forsthoffer and published by Elsevier. This book was released on 2011-05-21 with total page 681 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optimize plant asset safety and reliability while minimizing operating costs with this invaluable guide to the engineering, operation and maintenance of rotating equipment Based upon his multi-volume Rotating Equipment Handbooks, Forsthoffer's Best Practice Handbook for Rotating Machinery summarises, expands and updates the content from these previous books in a convenient all-in-one volume. Offering comprehensive technical coverage and insider information on best practices derived from lessons learned in the engineering, operation and maintenance of a wide array of rotating equipment, this new title presents: - A unique "Best Practice" and "Lessons Learned" chapter framework, providing bite-sized, troubleshooting instruction on complex operation and maintenance issues across a wide array of industrial rotating machinery. - Five chapters of completely new material combined with updated material from earlier volumes, making this the most comprehensive and up-to-date handbook for rotary equipment currently available. Intended for maintenance, engineering, operation and management, Forsthoffer's Best Practice Handbook for Rotating Machinery is a one-stop resource, packed with a lifetime's rotating machinery experience, to help you improve efficiency, safety, reliability and cost. - A unique "Lessons Learned/Best Practices" component opens and acts as a framework for each chapter. Readers not only become familiar with a wide array of industrial rotating machinery; they learn how to operate and maintain it by adopting the troubleshooting perspective that the book provides - Five chapters of completely new material combined with totally updated material from earlier volumes of Forsthoffer's Handbook make this the most comprehensive and up-to-date handbook for rotary equipment currently - Users of Forsthoffer's multi-volume Rotating Equipment Handbooks now have an updated set, with expanded coverage, all in one convenient, reasonably-priced volume
Download or read book Experimental Thermodynamics written by B. Le Neindre and published by Elsevier. This book was released on 2013-10-22 with total page 1345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental Thermodynamics, Volume II: Experimental Thermodynamics of Non-reacting Fluids focuses on experimental methods and procedures in the study of thermophysical properties of fluids. The selection first offers information on methods used in measuring thermodynamic properties and tests, including physical quantities and symbols for physical quantities, thermodynamic definitions, and definition of activities and related quantities. The text also describes reference materials for thermometric fixed points, temperature measurement under pressures, and pressure measurements. The publication takes a look at absolute measurement of volume and equation of state of gases at high temperatures and low or moderate temperatures. Discussions focus on volumes of cubes of fused silica, density of water, and methods of measuring pressure. The text also examines the compression of liquids and thermodynamic properties and velocity of sound, including thermodynamics of volume changes, weight methods, and adiabatic compression. The selection is a dependable reference for readers interested in the thermophysical properties of fluids.
Download or read book Fluid Sealing Technology written by Heinz K Muller and published by Routledge. This book was released on 2019-01-22 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Assists users, developers, researchers, and manufacturers in the design, selection, development, and application of seals and sealing systems for fluids."
Download or read book Compression Machinery for Oil and Gas written by Klaus Brun and published by Gulf Professional Publishing. This book was released on 2018-11-30 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compression Machinery for Oil and Gas is the go-to source for all oil and gas compressors across the industry spectrum. Covering multiple topics from start to finish, this reference gives a complete guide to technology developments and their applications and implementation, including research trends. Including information on relevant standards and developments in subsea and downhole compression, this book aids engineers with a handy, single resource that will help them stay up-to-date on the compressors needed for today's oil and gas applications. - Provides an overview of the latest technology, along with a detailed discussion of engineering - Delivers on the efficiency, range and limit estimations for machines - Pulls together multiple contributors to balance content from both academics and corporate research
Download or read book Performance and Analysis of Seals for Inerted Lubrication Systems of Turbine Engines written by Robert L. Johnson and published by . This book was released on 1968 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Decision of the Administrator of the Environmental Protection Agency Regarding Suspension of the 1975 Auto Emission Standards May 14 17 18 and 21 1973 written by United States. Congress. Senate. Committee on Public Works. Subcommittee on Air and Water Pollution and published by . This book was released on 1973 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tribology written by Jürgen Gegner and published by BoD – Books on Demand. This book was released on 2013-05-22 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the subject of tribology comprises lubrication, friction and wear of contact components highly relevant to practical applications, it challenges scientists from chemistry, physics and materials engineering around the world on todays sophisticated experimental and theoretical foundation to complex interdisciplinary research. Recent results and developments are preferably presented and evaluated in the context of established knowledge. Consisting of eleven chapters divided into the four parts of Lubrication and Properties of Lubricants, Boundary Lubrication Applications, Testing and Modeling, and Sustainability of Tribosystems, this textbook therefore merges basic concepts with new findings and approaches. Tribology Fundamentals and Advancements, supported by competent authors, aims to convey current research trends in the light of the state of the art to students, scientists and practitioners and help them solve their problems.
Download or read book NASA Tech Briefs written by and published by . This book was released on 1988 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hearings Reports and Prints of the Senate Committee on Public Works written by United States. Congress. Senate. Committee on Public Works and published by . This book was released on 1973 with total page 1742 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Decision of the Administrator of the Environmental Protection Agency Regarding Suspension of the 1975 Auto Emission Standards written by United States. Congress. Senate. Committee on Public Works. Subcommittee on Air and Water Pollution and published by . This book was released on 1973 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Decision of the Administrator of the Environmental Protection Agency Regarding Suspension of the 1975 Auto Emission Standards Hearings Before the Subcommittee on Air and Water Pollution 93 1 written by United States. Congress. Senate. Committee on Public Works and published by . This book was released on 1975 with total page 1150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
