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Author :
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ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.3/5 (91 download)
Download or read book Investigation of HEPA Filters Subjected to Tornado Pressure Pulses written by and published by . This book was released on 1978 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H. L. Horak
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (88 download)
Download or read book Investigation of HEPA Filters Subjected to Tornado Pressure Pulses written by H. L. Horak and published by . This book was released on 1978 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of HEPA Filters Subjected to Tornado Pressure Pulses. Initial Structural Testing written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Initial results from a program to determine response of 610- x 610-mm (24- x 24-in.) HEPA filters to tornado-induced pressure transients are described. Filters were structurally tested by subjecting them to 20.7-kPa (3-psi) pressure differentials at pressurization rates from 6.9 kPa/s (1 psi/s) to 34.5 kPa/s (5 psi/s). Two sizes of filters were used in the tests: 149 mm (57/ in.) thick and 292 mm (111/2 in.) thick. The 149-mm (57/ in.- ) thick filters failed catastrophically at 20.7-kPa (3-psi) pressure differentials. Pressure drop across the filters, not pressurization rate, appears to be the primary cause of failure. The 292-mm- (111/2-in.) thick filters were also tested with the above pressurization rates. These units failed by breakage of the folded downstream ends of the fiber mat. Of four 292-mm- (111/2-in.- ) thick filters tested, a 20.7-kPa (3-psi) pressure differential produced failure at the lowest and highest pressurization rates, but not at two intermediate rates. Additional tests will be required to determine a possible relationship between structural failure and pressurization rate. Flow-resistance data were also obtained for the 610- x 610-mm (24- x 24-in.) filters. Other activities described concern construction of small-scale particulate-loading and pressure-testing devices. These devices will be used to test 203- x 203-mm (8- x 8-in.) filters so that methods of testing and instrumentation requirements can be established for the full-scale tests. Progress is also reported on the data acquisition systems, the laser instrumentation system, and the construction of a building over the facility test section.
Author : W. S. Gregory
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.3/5 (91 download)
Download or read book HEPA Filter Effectiveness During Tornado Conditions written by W. S. Gregory and published by . This book was released on 1973 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 568 pages
Book Rating : 4.F/5 ( download)
Download or read book Title List of Documents Made Publicly Available written by and published by . This book was released on with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Energy Research and Development Administration
Publisher :
ISBN 13 :
Total Pages : 900 pages
Book Rating : 4.:/5 (319 download)
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1977 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Superintendent of Documents
Publisher :
ISBN 13 :
Total Pages : 1228 pages
Book Rating : 4.3/5 (121 download)
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1978 with total page 1228 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Author : U.S. Nuclear Regulatory Commission. Division of Technical Information and Document Control
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ISBN 13 :
Total Pages : 614 pages
Book Rating : 4.3/5 (91 download)
Download or read book Regulatory and Technical Reports written by U.S. Nuclear Regulatory Commission. Division of Technical Information and Document Control and published by . This book was released on 1975 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes indexes.
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ISBN 13 :
Total Pages : 990 pages
Book Rating : 4.X/5 (4 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1978 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 832 pages
Book Rating : 4.:/5 (31 download)
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1978 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 1228 pages
Book Rating : 4.3/5 (121 download)
Download or read book Federal Information Processing Standards Publication written by and published by . This book was released on with total page 1228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Energy Research and Development Administration. Technical Information Center
Publisher :
ISBN 13 :
Total Pages : 1066 pages
Book Rating : 4.3/5 (129 download)
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1977 with total page 1066 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 922 pages
Book Rating : 4.3/5 (129 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 640 pages
Book Rating : 4.:/5 (3 download)
Download or read book Proceedings of the 15th DOE Nuclear Air Cleaning Conference, Held in Boston, Massachusetts, 7-10 August 1978 written by and published by . This book was released on 1979 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Age on the Structural Integrity of HEPA Filters written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: All of the controls on high-efficiency particulate air (HEPA) filters are based on rigid manufacturing standards with regard to filtration efficiency, temperature performance, pressure integrity, and strength. Third-party inspection and testing by the US Department of Energy increases the reliability of new HEPA filters, but only routine in-place testing is used to assure that an aging filter performs adequately. In 1980 the Lawrence Livermore National Laboratory initiated a small evaluation to determine if age has a significant effect on the structural integrity of HEPA filters. A series of used uncontaminated filters dating back to 1965 was obtained for these tests. Tensile strength tests on the old media indicated a decrease in strength. To provide additional measurement of the filters' overall strength, several of these aged filters were subjected to pressure pulses equivalent to the NRC Region I tornado pulses and shock wave overpressures. Data from these tests indicate a decrease in breaking pressure of from 25-50%. A large increase in complete filter pack blow-out during the simulated NRC Region I tornado tests was also observed. The preliminary results indicate the need for an administrative lifetime for HEPA filters used in critical nuclear facilities. Due to the unique conditions in each facility, different administrative lifetimes may be necessary.
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ISBN 13 :
Total Pages : 424 pages
Book Rating : 4.X/5 ( download)
Download or read book Harnessing Theory for Practical Applications written by and published by . This book was released on 1982 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard Emil Peterson
Publisher :
ISBN 13 :
Total Pages : 710 pages
Book Rating : 4.:/5 (319 download)
Download or read book Proceedings of the Symposium on Tornadoes, Assessment of Knowledge and Implications for Man, June 22-24, 1976, Texas Tech University written by Richard Emil Peterson and published by . This book was released on 1977 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:
