ORNL-4191 - the Molten Salt Energy Technologies Web Site

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- Y) a - 70 60 50 40 (0 m 30 + m 20 40 1 1 I 202 SURVCILLANCC ORNL-DWG 67-7939 -- -- 7 10-" 16' 10-' 1 00 40' MINIMUM CREEP RATE (%/hr) Fig. 16.4. Comparative Creep Rates for MSRE Hastelloy N Surveillance and Control Specimens Irradiated and Tested at 1200'F. 70 60 50 I .- ur Q 8 40 - 0 v) 2 30 L5 0 5065 A 5067 0 5085 5084 RUPrURE TIME (hr) Fig. 16.5. Comparative Stress-Rupture Properties at 1200°F for Various Heats of Hostelloy N Irradiated in the MSRE arid the ORR at 1200'F. A
. - 7 6 5 $ 4 OT I- ul E 3 3 t- a 3 E 2 1 0 203 10-1 10' RUPTURE TIME (hr) ORNL -DWG 67-7941 Fig. 16.6. Comparutive Rupture Strains for Various Heats of Hastelloy N Irradiated and Tested at 1200'F. We removed a second set of Hastelloy N specimens in June 1967. The specimens removed from the core had been at temperature for 5500 ht and had accumulaied a peak thermal dose of approximately 4 i lo2') neutroms/ctn'. The core specimens were modified alloys containing approximately 0.5% Ti (heat 31545) and 0.5% Zr (heat 21554). A stringer of vessel specimens was also removed. These specimens had been exposed to the MSRE cell environment for about 11,000 hr and had accumulated a peak thermal dose of about 3 x 10'' neutrons/cm2. The vessel specimens were made of the same heats used in constructing the MSRE. We have not completed the mechanical testing of these m a t eria Is, but preliminary metallo graphic studies have been completed The primary concern with the vessel specimen was whether they were being nitrided by the cell environment. Figure 16.7 shows the surface of heat 5085. There is no evidence of^ nitriding, and the maximum depth of oxidation is about 0.003 in. The specimen taken from 1 o3 heat 5065 happened to be a weld made in constructing the stringer. This specimen is shown in Fig. 16.8. The amount of surface oxidation is greater, but the depth of oxidation is still. small, and there is no evidence of nitriding. Heat 21545 contained 0.5% Ti, arid our main concern was whether the alloy would corrode in the fused salt environment. Figure 16.9 shows that there is some slight surface reaction but no ex- tensive corrosion. Heat 21554 contained 0.5% Zr, and we were again concerned with the corrosion resistance. Figure 16.10 shows the surfaces of the surveillance specimens of this heat and indicates the lack of significant corrosion. Thus we are encouraged by the observations that (1) the MSRE grades of Hastelloy N are not being oxidized at a high rate, and there is no evidence of nitriding in the cell environmeni; and (2) the small zirconium and titanium additions that we are making to Hastelloy N do not appear detrimental. i I I. .rO4
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c c c Contract No. W-.740 5-eng- 26
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, INTRODUCTION ....................
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7 . SYSTEMS AND COMPONENTS DEVELOPM
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. 15.7 Oxygen Analysis ............
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i The objective of the Molten-Salt
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PART 1. MOLTEN-SALT REACTOR EXPERIM
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PART 2. MSBR DESlGN AND DEVELOPMENT
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especially when the system is stabi
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generated species in molten fluorid
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cold leg. The second loop, of Naste
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Part 1. Molten-Salt Reactor Experim
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was at full power continuously exce
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Analysis and details of operations
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1.2 REACTlVlTY BALANCE J. R. Engel
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alance results during this time sho
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II_- - 23 Table 1.2. MSRE Cumulotiv
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4 2 5 10 20 transient that followed
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27 Fig. 1.13. Motor of Reactor Cell
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personnel access to the area where
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accumulation rate at present indica
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The retrieval of the sample latch w
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The moisture condensed from the cel
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MSRE, details of some of the equipm
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39 Fig. 2.2. General View of Latch
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c 41 Table 2.1. Radiation Levels Fo
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significantly, indicating clearly t
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2.5 PUMPS P. G. Smith A. G. Grindel
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3.1 MSRE OPERATING EXPE RI ENCE C.
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The rate-of-fill interlocks, includ
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16 15 44 (3 42 I1 9 51 LLETHARGY 8
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shown as solid points in Fig. 4.1 (
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These are the results of two-dimens
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. r. ~ ~ ~ Fig. 4.8. Axiol Distribu
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. 59 Fig. 4.10. Axial Distribution
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- 12 0.0 $ 04 Lo ... z ? I- ;s -04
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Part 2. MSBR Design and Development
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ather than just the core and to pro
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A . 9.
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0 2 4 6810 LLLLLLU 1 INCHES COOLING
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however, electric heaters are provi
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I 43ft 3in REACTOR ’ t 40in. ! 3i
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of machining or close tolerances. T
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GASCONN I GAS SKIRT 4ft 8in. OD 19f
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271 TIRES 2%. A PITCH L- STEAM (la
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6.1 MSBR PHYSICS ANALYSIS 0. L. Smi
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4 V S; 0.06 v F 2.25 2.24 2.23 2.22
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0 8 6 4 7- 4=H20 SPECTRUM 2=D20 SPE
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chief indicators of performance. Th
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Work related to the Molten-Salt Bre
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I- 92 -Clt NO ClRCUl ATING BUBBLES
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L- a w r 94 ORNL-OWG 67-(1815 io‘
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about 500 mm Hg at the test operati
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1 I 1 I 1 98 MOTOR COUPLING dWER BE
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head and flow characteristics of th
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The chemical research and developme
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0 'i! m 0 w m d m w 0 W m 9 4 w lx
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Sample Nc. F312-10 FPi2-1: FP12-12
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~. 108 Table 8.2. Chemical Analyses
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tenfold or more as a consequence of
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mechanism is available which satisf
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An additional purpose of sampling w
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9. Fission Product Behavior in the
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een stripped is more nearly 50% of
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E > 0 12.0
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(014 5 2 4 o~~ 40" 5 2 5 - BLANK -~
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loi3 5 2 40’2 E : 5 m L al a 0) i
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126 Table 9.4, Fission Product Depo
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Table 9.7- Approximate Fission Prod
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(e.g., in metallic colloidal aggreg
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SAMPLES in. DlAM X t'46 in. ,,/NOR-
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c( 0 c c 0 134
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10.1 OXIDE CHEMISTRY OF ThF,-UF, ME
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BeF, in 2LiF 13eF,, this partial pr
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(up to one week) the transparency o
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The appearance in appreciable conce
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MoF3 e h l o .... ~~ .... Mo t MoF,
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i observed peak heights for Mo 2F9
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12.1 EXTRACT] ROTACTlNlUM FROM ever
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2 a STATIC -~ -0 AGITATED A AVERAGE
Page 162 and 163: to the end of the nickel anode. A m
Page 164 and 165: centration (97% removed). The distr
Page 166 and 167: point marked with a cross is the va
Page 168 and 169: 13. FB u orate 13.1 PHASE RELATIONS
Page 170 and 171: THERMOCOUPI-F FURNACE I TO VACUUM O
Page 172 and 173: Cr Metal Hastelloy N Fe Mo ~ 162 Ta
Page 174 and 175: - 0 0.44 0.40 0.36 0.32 .- + z 0.28
Page 176 and 177: . Development and E aluation of for
Page 178 and 179: Sample No. M Wil 1 FP-9-4 FP-10-25
Page 180 and 181: LJ !+€AD POT I I I I I I I I 1 I
Page 182 and 183: This uranium species disappeared sl
Page 184 and 185: 174 BI I - CARRIER - ...... -+ SAMP
Page 186 and 187: olten- I rr Molten-salt breeder rea
Page 188 and 189: I COLD LEG RETURN LIN 178 CORE OUTL
Page 190 and 191: March 17 following the fission prod
Page 192 and 193: Table 15.3. Comparison of Values fo
Page 194 and 195: likely cause of failure is the rapi
Page 196 and 197: 186 Fig. 15.6. Inner Surfoce of Col
Page 198 and 199: 188 Fig. 15.8. Inner Surface of Cor
Page 200 and 201: on final salt samples. 'This value
Page 202 and 203: P c9 P 082 P 8'ZF P 1.11 .c OF P S0
Page 204 and 205: HFIR FUEL ELLEMENT ,EXPERIMEUT 194
Page 206 and 207: Our materials program has been conc
Page 208 and 209: 198 SPLIT STRAP SLEEVE BAND (a) S F
Page 210 and 211: others, but all three stringers in
Page 214 and 215: 204 Fig. 16.7. Photomicrographs of
Page 216: 206 Fig. 16.9. Photomicrographs of
Page 219 and 220: AXF-5QRG 4-4 4 a9g/rm3 4f 56 % ~ AX
Page 221 and 222: Carbon Corporation, Poco Graphite,
Page 223 and 224: was found. In view of the low react
Page 225 and 226: SIC TEMPERATURE STAINLESS STEEL TUB
Page 227 and 228: 18.1. IMPRQVING THE RESISTANCE are
Page 229 and 230: These aging studies will be expande
Page 231 and 232: 221 Fig. 18.3. Hastellay N Containi
Page 233 and 234: Fig. 18.5. Hasvellcy N (Titanium Mo
Page 235 and 236: ORWL-DWG 67-tIP39 !-in -THICK PLATE
Page 237 and 238: 227 Toble 18.3. Thermal Convection
Page 239 and 240: 229 ORNL-DWG 67-io980 Impurity Anal
Page 241 and 242: 231 Fig. 18.16. Hastelloy N Thermal
Page 243 and 244: time what the effective diffusiviti
Page 245 and 246: Figure 18.20 shows an area near the
Page 247 and 248: The third design, which is also a d
Page 249 and 250: Part 6. Molten-Salt Processing and
Page 251 and 252: that the behavior of the rare-earth
Page 253 and 254: 22. Distillation of MSRE Fuel Carri
Page 255 and 256: 23. Steady-State Fission Product Co
Page 257 and 258: sec (50 hr). These latter residence
Page 259 and 260: analysis of filtered samples and th
Page 261 and 262: 25. Modifications to MSRE Fuel Proc
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nickel line through a sintered meta
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1. R. K. Adams 2. G. M. Adamson 3.
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344. E. H. Taylor 345. W. Terry 346
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