tornado nuclear power plant

15. September 2020 @ 14:19

This Section refers to the 1976 paper by R.P. Table 2 includes a different size and weight automobile for Region III than for Regions I and II. In this report, following the procedure suggested by Bates and Swanson (1967), the wind field of a tornado has been described using relations appearing in the technical literature and solutions of the trajectory of a spectrum of typical objects that could be postulated as potential tornado missile sources: A 3,940-lb automobile, a 35-ft long 14-in wooden diameter utility pole, a 12-ft long 8-in diameter wooden utility pole, an 18-ft long 4-in diameter wood fence post, a 10-ft long 4-in thick wood deck plank, a two-by-four, a 9-in brick, a 1/2-in diameter steel rod, a 2-in thick section of a concrete slab. G. Bouwkamp, and R. M. Stephen (U. of California Berkley)Transportation Engineering Journal, TE3, August 1973The paper presents the results of a full-scale laboratory test of the structural behavior of the 48-in. U. )The paper reviews the Atomic Energy Commission (AEC) design-basis tornado from Regulatory Guide 1.76 and the probable values of the tornado characteristics (maximum wind speed, rotational speed, translational speed, radius of maximum rotational wind, pressure drop, rate of pressure drop.) Now a professional storm tracker, she and her family are in danger once again as another ... A. Twisdale, W. L. Dunn (N.C. State U., Raleigh), T. L. DavisNuclear Engineering and Design 51 (1979) 295-308, North-Holland Publishing Co.The paper presents an algorithm to simulate the release and motion of objects transported by tornadoes. Volume 37, Number 2. The paper addresses three modes in which objects can be injected upward into the flow field of the tornado, together with a suggested analytical relationship for the height of injection.Missile Generation and Protection in Light-Water -Cooled Power ReactorR.

Analytical models and confirming experimental data, which are presented here, specifically concern the ballistic velocity-impact range to about 25 percent of the velocity of longitudinal sonic waves in the impacting materials.This paper is referenced in Standard Review Plan Section 3.5.3 Barrier Design Procedures.NASA, Space Vehicle Design Criteria (Structures), NASA SP-8007, September 1965 Revised August 1968This monograph indicates current practices for predicting buckling of uniform stiffened and unstiffened circular cylindrical shells under various types of static loading, and suggests the procedures that yield estimates of static buckling loads considered to be conservative.US Reactor Containment Technology, A Compilation of Current Practice in Analysis, Design, Construction, Test, and Operation, ORNL-NSIC-5, August 1965Missile generation: Shock-generated missile; self-propelled missile; jet-propelled missile; spalling.Blast shielding: Theory; absorption mechanisms; criteria for ideal absorbers; reduction factors; materials; absorber thickness; composite design.The resulting test-based penetration formulas are still referenced today in the NRC Standard Review Plan (SRP) Section 3.5.3 (2007).Tornado Design Considerations for Nuclear Power PlantsF.

The vertical missile velocity is given as 2/3 the horizontal speed.A Review of Procedures for the Analysis and Design of Concrete Structures to Resist Missile Impact EffectsNuclear Engineering and Design. Local effects on concrete include penetration (crater) or perforation (full penetration), spalling (at the impact face) and scabbing (at the opposite face). In the period 1973-1975 similar reports are prepared by most Architect Engineers: Gilbert’s CAI-TR-102, TVA’s TVA-Tr74-1, Ebasco’s ETR-1003, Brown and Root’s U&R -001,Bechtel’s BC-TOP-9A, United Engineer’s UEC-TR-002-0, etc.Impact Effect of Fragments Striking Structural ElementsR. The NRC based this original version of RG 1.76 on WASH-1300 (see above) which determined that the probability that a tornado exceeding the design basis would occur to be on the order of 1E-7 per year per nuclear power plant.Tornado-Resistance Design of Nuclear Power Plant StructuresJ. This Section refers to the 1959 Stanford Research Institute (SRI) empirical formula (Zabel et. R. McDonald, K. C. Mehta, J. E. Minor (Texas Tech. The staff of a nuclear reactor must struggle to avert a disaster when tornadoes cause damage that threatens to start a meltdown. The WCAP introduces the importance of the missile flight parameter CStructures to Resist the Effects of Accidental Explosions,Department of the Army, the Navy, and the Air Force, Tech Manual TM 5-1300 (June 1969).Penetration of Armor by Steel and High Density PenetratorsC. This is a systematic procedure for the analysis and qualification of concrete and steel targets to a tornado missile strike. Box 300 Liberty Corner, NJ, 07938 Tornado Design For Nuclear Power Plants: A Brief HistoryI agree to allow the site to collect my data solely for the use of subscriptions.We use cookies to ensure that we give you the best experience on our website. Tornado missiles are listed as the 4-in x 12-in x 12 ft long wood plank, 3-in sch.40 x 10 ft long pipe, 1-in dia. When tornadoes hit a nuclear power plant, critically damaging the plant's cooling system, the results could be catastrophic. A general description is also included of the cause and nature of shock waves, the various kinds of missiles that could be generated in the event of rupture of a primary system vessel, and the considerations involved in designing to protect against the harmful effects of shock waves and missiles. dia. A summary of the current practice for nuclear power reactor de-signs is given, gaps in the relevant current technology are discussed, and recommendations are made for further research and development.D. Later, these rules were moved to ASCE 7.Provides missile penetration formula based on Navy “Design of Protective Structures” Technical publication NAVDOCKS P-51, 1953Bechtel issues BC-TOP-9 Rev.1.

C. Bates (St. Louis U), A. E. Swanson (Black & Veatch)Transactions of the American Nuclear Society, Nov./Dec. The report provides ballistic penetration formula.L.