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FEASIBILITY OF PARTIAL CHEMICAL CONTROL FOR THE SM-2. SM-2 (FORMERLY APPR- 1B) DESIGN PROGRAM, TASK 12-CHEMICAL CONTROL

Description: Chemical control of the SM-2 was evaluated both as a partial substitute for burnable poison in the fuel element meat and as a means of improving plant performance. Based on a review of existing information, boric acid was chosen as the reference soluble poison. It was shown that 60% of the burnable B/sup 10/ in the fuel element matrix could be replaced by soluble B/sup 10/ in the coolant without impairing plant stability during load transients. The feasibility of improving power distribution an… more
Date: May 15, 1959
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Pressurized Water Reactor Program Technical Progress Report for the Period July 15, 1954 to August 26, 1954

Description: This progress report has 2 parts. Part 1 PWR Engineering covers the following topics: (1) power plant analysis and systems; (2) power plant components and component materials and tests; and (3) reactor and auxiliaries. Part 2 PWR Development covers: (1) fuel element development; (2) metallurgy of core materials; (3) materials application development; (4) chemistry development; (5) irradiation effects; and (6) reactor physics.
Date: October 31, 1957
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Corrosion of AISI Type 304 Stainless Steel in High Temperature Borated Water

Description: BS>The corrosion of type 304 stainless steel in water containing boric acid at 600 deg F and 2000 psig and at a flowvelocity of seven feet per second was investigated as a function of boron concentration and of alkaliknity. At a boron concentration of 39 ppm and at a pH value of 10, controlled with lithium hydroxide, no trend of corrosive attack with time was found after the first tw0 days. At a concentration of 41 ppm boron wlth no pH control (pH = 6.9), a regression tyoe equation of the form … more
Date: December 1, 1958
Creator: Krieg, A. & Cytron, S. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Studies of the Corrosion of Aisi 304 Stainless Steel and Aisi 4135 Carbon Steel Exposed to Saturated Solutions of Boric Acid

Description: AISI 304 stainless steel and AISI 4135 carbon steel specimens were exposed to five wt.% (70 F) and thirteen wt.% (140 F) boric acid solutions. These are essentially saturation concentrations. After four weeks exposure it was found that the AISI 304 stainless steel was not attacked under these conditions but that the carbon steel had developed considerable corrosion products in the form of scale. It was found that the attack on carbon steel at 70 F in a five wt.% boric acid solution was greatly … more
Date: November 1, 1958
Creator: Bergen, C. R. & Whyte, D. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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REACTOR ENGINEERING DIVISION QUARTERLY REPORT FOR JULY, AUGUST, SEPTEMBER 1955. SECTION II

Description: : 2 9 9 3 9 8 9 8 8 < 9 9 < corrosion of Zircaloy-2 clad stainless steel thimbles is shown. Designs of the EBWR control rod and drive mechanism are given. The deceleration curve for the drive shaft at 600-psig operation is given. The prototype test facility for the control mechanisms is also shown. Calculated heat generation and thermal stresses in the pressure vessel wall for each type of thermal shieding are tabulated. The mechanical arrangement of the thermal shielding is given. The pressure… more
Date: January 1, 1956
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Use of Boron for Fluoride Complexing in Thorex Dissolver Solutions

Description: Preliminary measurements of the corrosion of titanium were made in 13M HNO/sub 3/ -0.05M fluoride using O.1M H/sub 3/BO/sub 3/ as a liquid and vapor- phase complexing agent. Titanium Ax-55 was attacked at average rates of 0.58 and 0.33 mil/ month in the liquid and vapor. In dissolver solutions containing 0.5 and 1.0M titanium, all rates were less than 0.1 mil/month. (auth)
Date: August 1, 1959
Creator: Kitts, F. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

EXPERIMENTAL AND ANALYTICAL STUDIES OF REFLECTRO CONTROL FOR THE ADVANCED ENGINEERING TEST REACTOR. PART A. EXPERIMENTAL STUDIES WITH THE REFLECTOR CONTROL SYSTEM MODEL. PART B. ANALYTICAL STUDIES OF REFLECTOR CONTROL

Description: Studies of reflector control for the Advanced Engineering Test Reactor were made. The performance of various parts of the reflector control system model such as the safety reflector and the water jet educator, boric acid injection, and demineralizer systems is discussed. The experimental methods and results obtained are discussed. Four reflector control schemes were studied. The schemes were a single-region and three-region reflector schemes two separate reflectors, and two connected reflectors… more
Date: October 21, 1959
Creator: Bertelson, P.C. & Francis, T.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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