Download or read book Vacuum Drop Test of Air Cooled Condensers in Operation written by Hans Georg Schrey and published by GRIN Verlag. This book was released on 2018-04-23 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific Essay from the year 2018 in the subject Physics - Thermodynamics, , language: English, abstract: Vacuum tightness is critical for air-cooled condensers operating at low absolute pressure. Low vacuum is aimed for because vacuum dominates the power plant efficiency. To verify vacuum tightness usually a vacuum drop test is made with the system empty at normal atmospheric temperature and free of any liquids. This test is done before commissioning of the power unit and generally follows the recommendations of the Heat Exchanger Institute (HEI) as outlined in §6.1.1 of “Standards for Steam Jet Vacuum Systems”. However, over time of operation the power plant may develop leakages, which were not present at the time of the original drop test. This calls for a tightness test at operating conditions where pre-conditions for the standard vacuum drop test are not fulfilled. The report describes a vacuum drop test without interfering too much into normal power plant operation. The test is suitable for stationary operating conditions using standard operation readings. The assessment of leakage flow is based on the measured vacuum decay rate. It is shown that vacuum decay rates taken from tests before and after commissioning are different. Contractual fixing of acceptable vacuum decay rates should therefore be treated with care. Example graphs for easy evaluation are given.
Download or read book Pointers on Boiler Operation written by and published by . This book was released on 1944 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review of the vacuum decay test in air cooled steam condensers written by Hans Georg Schrey and published by GRIN Verlag. This book was released on 2019-03-06 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polemic Paper from the year 2018 in the subject Engineering - System Science, , language: English, abstract: Condensing the capacity of air-cooled condensers is critical for proper functionality of steam cycles in power plants. Condensers operate in the low vacuum regime to promote the efficiency of power generation. Leakages enable ingress of ambient air into the steam cycle and thus impede condensation and power generation capacity. Therefore, vacuum tightness is essential for effective plant operation and must be verified by means of an acceptance test. The latest revision of the VGB acceptance test code for the air-cooled condenser (VGB-S-131) proposes a simple procedure to verify ample vacuum tightness and evacuation capacity. However, the following report will demonstrate that the informational value of test results in connection with the proposed procedure are to some extent questionable. They cannot stand for themselves but need to be accompanied by further information gathered from other tests, as for example thermal performance tests. This puts the usefulness of the test itself into question.
Download or read book Proceedings written by National Electric Light Association and published by . This book was released on 1921 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mechanical World written by and published by . This book was released on 1910 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of Chemical Processing and Design written by John J. McKetta Jr and published by CRC Press. This book was released on 1997-08-26 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Vacuum system Design, Estimations to Velocity, Terminal in Setting, Estimation"
Download or read book Power Plant Instrumentation and Control Handbook written by Swapan Basu and published by Academic Press. This book was released on 2019-06-09 with total page 1154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power Plant Instrumentation and Control Handbook, Second Edition, provides a contemporary resource on the practical monitoring of power plant operation, with a focus on efficiency, reliability, accuracy, cost and safety. It includes comprehensive listings of operating values and ranges of parameters for temperature, pressure, flow and levels of both conventional thermal power plant and combined/cogen plants, supercritical plants and once-through boilers. It is updated to include tables, charts and figures from advanced plants in operation or pilot stage. Practicing engineers, freshers, advanced students and researchers will benefit from discussions on advanced instrumentation with specific reference to thermal power generation and operations. New topics in this updated edition include plant safety lifecycles and safety integrity levels, advanced ultra-supercritical plants with advanced firing systems and associated auxiliaries, integrated gasification combined cycle (IGCC) and integrated gasification fuel cells (IGFC), advanced control systems, and safety lifecycle and safety integrated systems. - Covers systems in use in a wide range of power plants: conventional thermal power plants, combined/cogen plants, supercritical plants, and once through boilers - Presents practical design aspects and current trends in instrumentation - Discusses why and how to change control strategies when systems are updated/changed - Provides instrumentation selection techniques based on operating parameters. Spec sheets are included for each type of instrument - Consistent with current professional practice in North America, Europe, and India - All-new coverage of Plant safety lifecycles and Safety Integrity Levels - Discusses control and instrumentation systems deployed for the next generation of A-USC and IGCC plants
Download or read book Power Plant Engineering written by Larry Drbal and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive volume provides a complete, authoritative, up-to-date reference for all aspects of power plant engineering. Coverage ranges from engineering economics to coal and limestone handling, from design processes to plant thermal heat balances. Both theory and practical applications are covered, giving engineers the information needed to plan, design, construct, upgrade, and operate power plants. Power Plant Engineering is the culmination of experience of hundreds of engineers from Black & Veatch, a leading firm in the field for more than 80 years. The authors review all major power generating technologies, giving particular emphasis to current approaches. Special features of the book include: * More than 1000 figures and lines drawings that illustrate all aspects of the subject. * Coverage of related components and systems in power plants such as turbine-generators, feedwater heaters, condenser, and cooling towers. * Definitions and analyses of the features of various plant systems. * Discussions of promising future technologies. Power Plant Engineering will be the standard reference in the professional engineer's library as the source of information on steam power plant generation. In addition, the clear presentation of the material will make this book suitable for use by students preparing to enter the field.
Download or read book Vacuum Precooling written by W. R. Barger and published by . This book was released on 1963 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Industrial Refrigeration written by and published by . This book was released on 1914 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Refrigeration Engineering written by and published by . This book was released on 1931 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: English abstracts from Kholodil'naia tekhnika.
Download or read book The Au Sable News written by and published by . This book was released on 1923 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of National Electric Light Association written by National Electric Light Association and published by . This book was released on 1928 with total page 1780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Engineer written by and published by . This book was released on 1909-07 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical World written by and published by . This book was released on 1922 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book N E L A Publications written by National Electric Light Association and published by . This book was released on 1924 with total page 1476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Industrial Refrigeration written by and published by . This book was released on 1943 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
