Download or read book On predicting the expansion of zircaloy tubing in variable high temperature environments written by W. R. Clendening and published by . This book was released on 1973 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the results of a portion of a research program which is intended to provide a basis for future designs of nuclear reactor fuel capable of surviving a loss of coolant accident (loca). the work reported is an analysis of 300 experiments that were required to indicate the strength and deformation characteristics of fuel cladding during thermal transients similar to those which would occur during a loca. a mathematical model which estimates the uniform expansion associated with a tube being heated at a constant heating rate is developed. it is expected that if a few additional experiments are performed in order to more accurately define the coefficients of this model (for heating rates other than 25 degrees c/sec), then it should provide a reasonable estimate of fuel clad behaviour (for epsilon less than or equal to 10 percent) during the initial and most difficult to describe stage of a loca in which both temperature and strain rate are rapidly varying.

Download or read book High temperature expansion and rupture behaviour of zircaloy tubing written by D. G. Hardy and published by . This book was released on 1973 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Simulated Fuel Expansion Testing of Zircaloy Tubing written by JP. Foster and published by . This book was released on 1989 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expanding mandrel (Simulated Fuel Expansion or Simfex) pellet-cladding interaction (PCI) simulation tests were performed on unirradiated Zircaloy-2, Zircaloy-4, zirconium-lined Zircaloy-2, Zircaloy-3A alloy-lined Zircaloy-2, and graphite-lined Zircaloy-4 tubing with high-purity argon and iodine. SIMFEX tests were also performed on irradiated Zircaloy-4 cladding in iodine. Sensitivity tests were performed on unirradiated unlined Zircaloy-4 tubing in order to establish SIMFEX test conditions that simulate PCI. Test variables included test temperature, core compression rate (or sample strain rate) and iodine partial pressure. SIMFEX test parameters that simulate PCI cover a wide range of test conditions. At a given temperature, these test conditions depend on core compression rate and iodine partial pressure. Iodine SIMFEX tests on unlined unirradiated and irradiated Zircaloy-4 showed that the PCI simulation test conditions produce fractures similar to fuel rod ramp tests. The zirconium-lined Zircaloy-2, Zircaloy-3A alloy-lined Zircaloy-2 and graphite-lined Zircaloy-4 tubing exhibited excellent resistance to simulated PCI failure. Similar diameter fracture strains were exhibited by the zirconium-lined Zircaloy-2 and Zircaloy-3A alloy-lined Zircaloy-2 while significantly higher diameter fracture strains were measured on the graphite-lined Zircaloy-4 tubing. The results of these tests will be used to discuss iodine stress corrosion cracking liner performance mechanisms.

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975-02 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High temperature Deformation and Rupture Behavior of Internally pressurized Zircaloy 4 Cladding in Vacuum and Steam Enivronments LOCA Conditions written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The high-temperature diametral expansion and rupture behavior of Zircaloy-4 fuel-cladding tubes have been investigated in vacuum and steam environments under transient-heating conditions that are of interest in hypothetical loss-of-coolant accident situations in light-water reactors. The effects of internal pressure, heating rate, axial constraint, and localized temperature nonuniformities in the cladding on the maximum circumferential strain have been determined for burst temperatures between approximately 650 and 1350°C.

Download or read book Low Strain Diameter Expansion of Internally Pressurized Zircaloy 4 Tubing at High Temperatures LWBR Development Program written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Tests of closed-end, internally pressurized, Zircaloy-4 tubing specimens were utilized to develop low strain creep characteristics as a function of time at temperatures in the range of 1475°F to 2000°F (802°C to 1093°C) and hoop stresses in the range of 250 to 2500 psi for use in loss-of-coolant accident (LOCA) analyses. The strain rate above the start of the alpha to beta phase transformation region, approximately 1490°F (810°C), was found to be sensitive to the test procedure (stress-temperature history). This is believed to result from variations in the metallurgical structure. A prediction model is presented which provides a conservative upper bound to the low strain test data provided in this report and reported in the literature.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Metals Abstracts written by and published by . This book was released on 1988 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Engineering Index Annual written by and published by . This book was released on 1992 with total page 2264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its creation in 1884, Engineering Index has covered virtually every major engineering innovation from around the world. It serves as the historical record of virtually every major engineering innovation of the 20th century. Recent content is a vital resource for current awareness, new production information, technological forecasting and competitive intelligence. The world?s most comprehensive interdisciplinary engineering database, Engineering Index contains over 10.7 million records. Each year, over 500,000 new abstracts are added from over 5,000 scholarly journals, trade magazines, and conference proceedings. Coverage spans over 175 engineering disciplines from over 80 countries. Updated weekly.

Download or read book Safety Aspects of Fuel Behaviour in Off normal and Accident Conditions written by OECD Nuclear Energy Agency and published by . This book was released on 1981 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book INIS Atomindeks written by and published by . This book was released on 1987 with total page 1260 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Metals Abstracts Index written by and published by . This book was released on 1996 with total page 1622 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Keywords Index to U S Government Technical Reports written by United States. Department of Commerce. Office of Technical Services and published by . This book was released on 1962 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Keywords Index to U S Government Technical Reports permuted Title Index written by United States. Department of Commerce. Office of Technical Services and published by . This book was released on 1962 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Safety written by and published by . This book was released on 1977 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt: