ORNL-2106 - the Molten Salt Energy Technologies Web Site

More documents

Recommendations

Info

ANP PROJECT PROGRESS REPORT the shrinkage data described herein should be determined by conducting another test prior to attempting fabrication of a pump with a complex volute. Since the shrinkage at position 3 was less than expected, it was not possible to use the spacers, as machined, to prevent further shrinkage during annealing. The pump casing was annealed at 185OOF for 4 hr in order to determine the necessity for this operation. The additional shrinkage of 0.002 to 0.004 in. observed indicates that the role of residual stresses is significant. Properly machined spacers should be used to prevent further shrinkage during annealing, as was accomplished in the previous investigation.' Brazing Studies Tests have also been performed to study the feasibility of a brazed NaK (PK-2) pump volute. The component parts for the test are shown in Fig. 3.4.4. The bottom volute is shown with eight 0.187-in.-diaI 1-in.-long lnconel shear pins inserted into 0.197-in.dia holes drilled to a depth of ?$ in. These pins were intended to provide approximately 5 in.2 of shear area to supplement the 18 in.2 of area that constitutes the faying surfaces of the upper and lower volutes in the brazed assembly. The top volute is shown with 0.200-in.-ID tubes welded over the shear pin holes to act as reservoirs for the Coast Metals No. 52 brazing alloy. The alloy was applied in the form of 3.16-in.-dia slugs, which ranged from 3.8 to 4 in. in length and were fabricated by casting in graphite molds. Several of these slugs are shown in the center of Fig. 3.4.4. A total of 30.8 g of Coast Metals No. 52 alloy was used. This amount was calculated to supply approximately 0.19 in? of alloy, of which 0.048 in.3 would fill the space between the shear pins and the shear pin holes and approximately 0.054 in. 3 would comprise a 0.0003-in.-thick brazing alloy layer between the faying surfaces of the volutes. It was expected that a surplus of brazing alloy would be desirable to ensure complete brazing. The excess alloy was to remain in the reservoirs. A 0.003-in. separation between the parts of the volutes was achieved by using 0.003-in.dia nickel wire as a spacer. Micrometer measurements were made before and after brazing at the positions described in Fig. 3.4.5. The assembly was braze$ at 1050°C in dry hydrogen. The heating and cooling rate of the brazing cycle was approximately 35O0C/hr, 178 and a hold time of 3 hr at 1050°C was used. A photograph of the completed assembly is shown in Fig. 3.4.6. As may be seen, excess brazing alloy flowed out of the capillary and down the side of the casing. A similar condition was evident on the inside of the volute; there wps a fillet of brazing alloy thinly distributed around the bottom volute. The failure of the reservoirs to retain the excess brazing alloy is attributed to the relatively large clearance between the lnconel shear pins and the shear pin holes. It is expected that a clearance of 0.001 to 0.002 in., coupled with a supplementary capillary on the periphery of the casing, which could be removed later, would remedy this dif- ficulty. The braze joint was subjected to dye-penetrant and radiographic inspections and was considered to be sound. The degree of correlation between the radiographic interpretation and the joint sound- ness should be determined by metallographic exam i no t i on. The results of the micrometer measurements are summarized in Table 3.4.2. As may be noted, most of the dimensional changes found are within the limit of error of the measurements. As was expected, the data indicate that the brazed con- struction affords a high degree of dimensional control and should be given consideration as a fabrication method. TABLE 3.4.2. RESULTS OF MICROMETER MEASUREMENTS BEFORE AND AFTER BRAZING OF NaK (PK-2) PUMP VOLUTE Position Dimensions* (in.) As Assembled After Brazing Change A-1 3.815 3.813 -0.002 2 3.818 3.817 -0.001 3 0.629 0.628 -0.001 B-1 3.817 3.817 0 2 3.816 3.816 0 3 0.629 0.627 -0.002 c- 1 3.81 9 3.820 +0.001 2 3.81 8 3.81 8 0 3 0.629 0.628 -0.001 D-1 3.818 3.817 -0.001 2 3.816 3.815 -0.001 3 0.629 0.628 -0.001 *Estimated accuracy of measurement *0.001 in. 6 t c 3 C A *' L
4 2 t 4 2 in. t 2 WCLASSFKO ORNL-LR-DWG 14720 Vein. Fig. 3.4.3. Details of Micrometer Measure- ments on Welded NaK (PK-2) Pump Volute. Measurements made at four radial sections (A through D) at 90-deg intervals at positions 1, 2, and 3 (see Table 3.4.1). INCONEL TUBING COAST METALS ALLOY SLUGS INCONEL PIN UNCLASSIFIED ORNL-LR-DWG 44724 2 I d ‘/4 in. Fig. 3.4.5. Details of Micrometer Measurements on Brazed NaK (PK-2) Pump Volute. Measurements made at four radial sections (A throu$n D) at %deg intervals at positions 1, 2, and 3 (see Table 3.4.2). PERIOD ENDING JUNE 10, 1956 Fig. 3.4.4. Component Parts tor Brazing Test on NaK (PK-2) Pump Volute. Note the Inconel shear pins on the bottom test piece, the Coast Metals No. 52 alloy slugs in the center, and the Inconel tubing reservoirs on the top test piece. ailQl5B-m PK-2 PUMP BRAZE TEST Fig. 3.4.6. NaK (PK-2) Pump Volute After Brazing. 179
Page 3 and 4:
Part 1 AIRCRAFT REACTOR ENGINEERING
Page 5 and 6:
STATUS OF ART DESIGN Design work on
Page 7 and 8:
of pressure loads. The idealized mo
Page 9 and 10:
UPPER DECK 7 @ PRESSURE SHEL PERIOD
Page 11 and 12:
SOD,UM r--- INCONEL TANK ROOF 0 0.5
Page 13 and 14:
TABLE 1.1.1. NaK PUMP SPEEDS AND HO
Page 15 and 16:
62 CALCULATED HEATING (w/crn3) N w
Page 17 and 18:
where I = radius of source (taken a
Page 19 and 20:
heat exchanger was used. The heatin
Page 21 and 22:
head which are bounded by various t
Page 23 and 24:
h bd * W - EcBRc+ ORNL-LR-DWG I4918
Page 25 and 26:
PERIOD ENDlNC JUNE 10. 1956 TABLE 1
Page 27 and 28:
ENRICHER ACTUATOR J. M. Eastman Spe
Page 29 and 30:
hd - Thus, even with an input signa
Page 31 and 32:
- . 140 120 p 100 g d 80 8 L s In y
Page 33 and 34:
and lose their hardness in the pres
Page 35 and 36:
p. W 2.5 0.5 0 400 OPERATING TIME (
Page 37 and 38:
i 20 too 80 40 20 PERIOD ENDING JUN
Page 39 and 40:
c' I - + r 500 450 400 3 50 300 2 2
Page 41 and 42:
01) 0V3H 5: N 0 2 s 0 0 0 5: 0 2 s
Page 43 and 44:
the first 200OF and B0F/sec for the
Page 45 and 46:
PERIOD ENDING JUNE 10, 1956 TABLE 1
Page 47 and 48:
L 0 _, I, -* t; - PERIOD ENDING JUN
Page 49 and 50:
LJ 0.005 in. on the diameter and a
Page 51 and 52:
I 3 -I W CALROD HEATER 1500 I 1400
Page 53 and 54:
-17 Inconel I .._I_ I" .. _ _ ~ ._
Page 55 and 56:
i E ART FACILITY F. R. McQuilkin Co
Page 57 and 58:
L7i PERIOD ENDING JUNE 10, 1956 Fig
Page 59 and 60:
PERIOD ENDING JUNE 10, 1956 Fig. 1.
Page 61 and 62:
ART OPERATING MANUAL W. B. Cottrell
Page 63 and 64:
Part 2 CHEMISTRY W. R. Grimes
Page 65 and 66:
W 2.1. PHASE EQUILIBRIUM STUDIES' C
Page 67 and 68:
- 0 Q 3 G 4000 900 800 700 a w a 5
Page 69 and 70:
- a t a w 1000 900 000 - P 700 3 2
Page 71 and 72:
- 0 e 4 000 900 800 5 700 I- a a W
Page 73 and 74:
ZrF4 9t2 PERIOD ENDING JUNE 10, 795
Page 75 and 76:
U c * NaF*BeF2-2NaF*BeF2 triangle c
Page 77 and 78:
THE SYSTEM MgF2-CaF2 L. M. Bratcher
Page 79 and 80:
2.2. CHEMICAL REACTIONS IN MOLTEN S
Page 81 and 82:
I id PERIOD ENDING JUNE 10, 1956 an
Page 83 and 84:
PERIOD ENDlNG JUNE 10, 1956 V which
Page 85 and 86:
u the salt-metal interface, and the
Page 87 and 88:
of this reaction will be made at th
Page 89 and 90:
+- + z 6 e 6 5 3 3 > k i m 3 2 2 1
Page 91 and 92:
FeF,. The FeF, saturation points we
Page 93 and 94:
UNIF, = yN should be unity (a pure
Page 95 and 96:
Although it appears that the solubi
Page 97 and 98:
, . 2.3. PHYSICAL PROPERTIES OF MOL
Page 99 and 100:
-0 a rn u) u) DO2 oot c ;o rn OS g
Page 101 and 102:
IL, - PERIOD ENDING JUNE 70, 7956 O
Page 103 and 104:
8 00 700 600 - 0 0, w 500 a 3 I- U
Page 105 and 106:
supporting plaque is loaded into th
Page 107 and 108:
u 2.4. PRODUCTION OF FUELS c G. J.
Page 109 and 110:
half of fiscal year 1957. This esti
Page 111 and 112:
2.5. COMPATIBILITY OF MATERIALS AT
Page 113 and 114: volume of 1 M tartaric acid solutio
Page 115 and 116: After the trap has been opened, bot
Page 117 and 118: \ Part 3 METALLURGY W. D. Manly
Page 119 and 120: FLUORIDE FUEL MIXTURES IN INCONEL F
Page 121 and 122: PERIOD ENDING JUNE 10, 1956 TABLE 3
Page 123 and 124: Fig.3.1.3. Region of Maximum Attack
Page 125 and 126: (d . terminated after 1217 and 1339
Page 127 and 128: - . LJ BRAZING ALLOYS IN LIQUID MET
Page 129 and 130: PERIOD ENDING JUNE 10, 1956 NaK wer
Page 131 and 132: I PERIOD ENDING JUNE 10, 1956 I Fig
Page 133 and 134: 0. PERIOD ENDING JUNE 10, 1956 Fig.
Page 135 and 136: Fig. 3.2.10. Apparatus for Studying
Page 137 and 138: STATIC TESTS OF INCONEL CASTINGS R.
Page 139 and 140: t (JnOOSll 3n918-3NOt IOH (JoOOSI)
Page 141 and 142: after the l00hr test. The extent of
Page 143 and 144: tests of the Lindsay Mix specimens,
Page 145 and 146: LJ DEVELOPMENT OF NICKEL-MOLYBDENUM
Page 147 and 148: LJ PERIOD ENDING JUNE 10, 1956 Fig.
Page 149 and 150: 2. Canning of the billets with '/,-
Page 151 and 152: 165 . c, e . c3 a PERIOD ENDING JUN
Page 153 and 154: u allow the billet to start through
Page 155 and 156: NEUTRON SHIELD MATERIAL FOR HIGH-TE
Page 157 and 158: PERIOD ENDfNG JUNE 10, 7956 Fig. 3.
Page 159 and 160: wrought plate used as base material
Page 161 and 162: J point. A mixture of 50-50 vol % L
Page 163: WELDING PROCEDURE: VERTICAL FIXED,
Page 167 and 168: FABRICATION OF JOINTS BETWEEN PUMP
Page 169 and 170: * h WELDING PROCEDURE PERlOD ENDING
Page 171 and 172: 1 1 6 in. PUMP BARREL t SECTION AA
Page 173 and 174: '4 x 6 x 20-in. INCONEL PLATES (/*-
Page 175 and 176: UNCLASSIFIED PHOTO 17248 Fig. 3.4.1
Page 177 and 178: through the radiator by passing col
Page 179 and 180: L, . 1 Q t V ERIOD ENDING JUNE 10,
Page 181 and 182: to permit the examination of indivi
Page 183 and 184: LJ . t L t * I LJ Fig. 3.4.33. Tube
Page 185 and 186: Fig. 3.4.37. Inner Surface of Tube
Page 187 and 188: EFFECTOF ENVIRONMENTONCREEP- RUPTUR
Page 189 and 190: PERIOD ENDING JUNE 10, 1956 UNCLASS
Page 191 and 192: Fig. 35.7. Surface Effect on the St
Page 193 and 194: 44,000 42,000 40,000 - ._ (D 8000 v
Page 195 and 196: \:r 1 U UNCL 1158 W ioo,ooo 80,000
Page 197 and 198: fuel mixture (No. 30) NaF-ZrF -UF,
Page 199 and 200: i u * ‘*$ , .\. The Lindsay Chemi
Page 201 and 202: 6, * c L . c e 4 gi depths greater
Page 203 and 204: i 4 Part 4 HEAT TRANSFER AND PHYSIC
Page 205 and 206: 4.1. HEAT TRANSFER AND PHYSICAL PRO
Page 207 and 208: This relationship gives the ratio o
Page 209 and 210: The parameters of the’experiment
Page 211 and 212: t Fig. 4.1.7. Fuel Annulus of the V
Page 213 and 214: uncooled wall temperature that woul
Page 215 and 216:
SHIELD MOCKUP REACTOR STUDY L. C. P
Page 217 and 218:
Liquid (688 to 8986C) I . HT - H3Q
Page 219 and 220:
THERMAL CONDUCTIVITY W. D. Powers T
Page 221 and 222:
cd Fig.4.2.4. Slingers from MTR In-
Page 223 and 224:
a plug when they came in contact wi
Page 225 and 226:
couples were used on this loop to e
Page 227 and 228:
0 20 40 60 80 lo0 I20 440 (60 180 2
Page 229 and 230:
"fast" neutron in a graphite reacto
Page 231 and 232:
eached thermal equilibrium in an in
Page 233 and 234:
0.5 0.4 - a3 l- W z 0.2 0.1 UNCLASS
Page 235 and 236:
TABLE 4.2.3. RESULTS OF EXAMINATION
Page 237 and 238:
U could be evacuated was used for t
Page 239 and 240:
! j * . x - iu I PERlOD ENDlNG JUNE
Page 241 and 242:
CRITICAL EXPERIMENTS FOR THE COMPAC
Page 243 and 244:
. I) a W PERIOD ENDING JUNE 10, 195
Page 245 and 246:
U I I R i c . --. in. long, 18’4,
Page 247:
I, . R t 3 4 . C 7 6 5 W 5 a c3 E4
Page 250 and 251:
1 a
Page 252 and 253:
ANP PROJECT PROGRESS REPORT ot(E) =
Page 254 and 255:
ANP PROJECT PROGRESS REPORT TABLE 5
Page 256 and 257:
ANP PROJECT PROGRESS REPORT TABLE 5
Page 258 and 259:
6 ANP PROJECT PROGRESS REPORT 2 lo7
Page 260 and 261:
ANP PROJECT PROGRESS REPORT GAMMA-R
Page 262 and 263:
ANP PROJECT PROGRESS REPORT 5.3.3,
Page 264 and 265:
ANP PROJECT PROGRESS REPORT A I P I
Page 266 and 267:
ANP PROJECT PROGRESS REPORT SECTION
Page 268 and 269:
ANP PROJECT PROGRESS REPORT .. .._
show all

ORNL-2106 - the Molten Salt Energy Technologies Web Site

Create successful ePaper yourself

Delete template?

Save as template?