ORNL-2106 - the Molten Salt Energy Technologies Web Site
ORNL-2106 - the Molten Salt Energy Technologies Web Site
ORNL-2106 - the Molten Salt Energy Technologies Web Site
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PERIOD ENDING JUNE 10, 1956<br />
TABLE 1.4.4. SUMMARY OF SMALL HEAT EXCHANGER TEST STAND OPERATION<br />
Hours of Total Number of<br />
Test Unitu Noniso<strong>the</strong>rmol Hours of Thermal Reason for Termination<br />
<strong>ORNL</strong> heat exchanger No. 1<br />
(type SHE-2)<br />
Process Engineering heat exchanger<br />
No. 1 (type SHE-2)<br />
York radiator No. 4<br />
(mod if ication 2)<br />
York radiator No. 7 (revised design)<br />
Circulating cold trap No. 1<br />
(4 in. in diameter)c<br />
Circulating cold trap No. 6<br />
(4 in. in diameter, modification 1)<br />
<strong>ORNL</strong> heat exchanger No. 2<br />
(type SHE-2)<br />
Stru<strong>the</strong>rs-Wells heat exchanger No. 1<br />
(type SHE-2)<br />
York radiator No. 5<br />
(modificotion 2)<br />
Circulating cold trap No. 4<br />
(4 in. in diameter)<br />
Optrat ion Operat i on' cycles<br />
Test Stand B<br />
104 1 207 1 36<br />
0 120<br />
748 1356 31<br />
0 120<br />
Test Stand C<br />
995<br />
216<br />
102 634 15<br />
4 280 2<br />
106 914 17<br />
ted during this report period.<br />
'For tests In progress <strong>the</strong> total operating time is shown os of May 15, 1956.<br />
CThis type of cold trap previously referred to as 80-gal system.<br />
diator No. 4 were rem0<br />
stand for metallurgical examination.<br />
Heat transfer data, fuel pressure d<br />
drop data for <strong>the</strong> heat exchanger<br />
ntial agreement with data previously<br />
d did not change throughout he test.<br />
r heat transfer data substantially agreed<br />
ata for <strong>ORNL</strong> radiator No. 3, and <strong>the</strong> air<br />
data substantially agreed with <strong>the</strong><br />
bridge radiators Nos. 1 ond 2, all<br />
previously reported.I0 The rpdiator NaK pressure<br />
drop increased approximately 30% during <strong>the</strong> test<br />
operation. Much of <strong>the</strong> test program on <strong>the</strong>se<br />
914<br />
Test completed<br />
Test continuing<br />
Test completed<br />
Test continuing<br />
Test completed<br />
Test continuing<br />
Removed when restriction<br />
to fuel flow developed<br />
Test terminated because<br />
of restriction to fuel flow<br />
Test continuing<br />
Replaced by new cold trap<br />
units consisted of <strong>the</strong>rmal cycling operations. A<br />
complete cycle consisted of 16 hr of power opera-<br />
tion, with maximum and minimum NaK temperatures<br />
of 1275 and 1005OF, respectively, and 8 hr of<br />
iso<strong>the</strong>rmal operation at 1285OF. The rate of NaK<br />
temperature change during <strong>the</strong> transition from one<br />
condition to <strong>the</strong> o<strong>the</strong>r was approximately 7OF/sec,<br />
The heat exchanger log-mean temperature difference<br />
changed from O°F during iso<strong>the</strong>rmal operation to<br />
74OF during power operation.<br />
York radiator No. 7 (Fig. 1.4.8) and Process<br />
Engineering Co. heat exchanger No. 1, type SHE-2,<br />
were installed in stand 6, and test operations were<br />
59