,
, ,
,
, 1
N P P R O J E C T PROGRESS R E P O R T
UNCLASSIFIED ORNL-LR-DWG 7325
20
I 40 L E F T OUTER WALL
05
o,
8
L E F T COOLANT PASSAG
0 2
L-12 --II 8 O'
0 M I N I M U M @ ( O ) E X P E R I M E N T A L DATA 0 DARKENED POINTS GO WITH THEORY
A M A X I M U M Q ( 0 ) EXPERIMENTAL DATA
0
AVERAGE L I N E DRAWN THROUGH DATA
0 05
fc CENTER WALL TEMPERATURE
to OUTER W A L L TEMPERATURE
I
HEIGHT TYPICAL VERTICAL VARIATION OF E X P E R I M E N T A L @ ( O )
0 02
t
0 04 1 o3
2
5
1 o4
2
4 o5
5
2
5
4 O6
2
Nl
I Fig. 7.8. Dimensionless Temperature Function for N,Il HEAT CAPACITY
W. D. Powers Reactor Exper imenta I Engineering D i v i s ion The enthalpies and heat capacities of four fluoride compositions and of lithium hydride have been determined by using the copper-block calorimeter. T h e results are listed below:
(50-46-4 mole %) L i q u i d (540 t o 894OC) H T - H 2 5 ~ C= -3.3 + 0.3178T - (4.28 x 10-5)T2 c = 0.3178 - (8.56 x 10-5)T P
NaF-ZrF,-UF,
(50-50 mole %) Solid (54 t o 488OC) = -4.4 + 0.17981HT - H25째 C
NaF-ZrF,
156
(546 t o 899OC) = -9.8 + 0.3508T - (5.39 x 10-5)T2 H T - H25째C c = 0.3508 - (10.79 x lO-')T P = 63 a t 5 10째C AHfu s ion Liquid
(56-39-5 mole %)
NaF-ZrF,-UF,
(137 t o 503OC) HT - H 3 5 0 C = -4.3 + 0.15967- + (5.15 x 10-5)T2 c = 0.1596 + (10.29 x 10-5)T P L i q u i d (567 t o 892OC) H T - H 3 5 0 C = 0.6 + 0.3033T - (3.24 x 10-5)T2 c P = 0.3033 - (6.47 x 10'5)T = 57 at 53OOC AHfu s io n Solid
(20-55-21-4 mole %) L i q u i d (582 t o 9OOOC) = -25.9 + 0.4314T - (7.42 x 10-5)T2 HT - H25째 C
NaF-LiF-ZrF,-UF,
+ (2.69 x 10-5)T2
c = 0.1798 + (5.38 x 10-5)T
P
< 1300.
c =
P
0.4314 - (14.85 x 10-5)T
r
t