Page 37

13 ORNL-DWG

B)

120

CORE BOUNDARY

a

t

(10

74-4343f

I

l

+

100

90

00

.. 40 c

44

30

20

10

0 0

10

20

30

40

50 60 70 RADIAL DISTANCE (cm)

00

90

100

110

420

Fig. 1.8. MSBE graphite damage flux (E > 50 kev).

b

*

W

1.7 years of full-power operation using the relation recommended by Eatherly.’ Calculations were also made for prismatic moderator elements in a single-pass

10. D. Scott and W. P. Eatherly, “Graphite and Xenon Behavior and Their Influence on MoltenSalt Reactor Design,” Nucl. Appl. Techno/. 8,179-89 (February 1970).

core in which the 3.64-in. distance between the flat surfaces was reduced to 3.0,2.75, and 2.5 in., but the central hole diameter was held at 0.6 in. These changes resulted in average graphite temperatures at the center of the core of 1310, 1290, and 1260”F, respectively, with corresponding graphite lifetimes of 1.9, 2.0, and 2.1 years. Average graphite temperatures and lifetimes along the reactor center line for the 3-in. prismatic

ORNL-4728  

http://www.energyfromthorium.com/pdf/ORNL-4728.pdf

ORNL-4728  

http://www.energyfromthorium.com/pdf/ORNL-4728.pdf

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