ORNL-1771 - Oak Ridge National Laboratory

Fuel-to-NaK heat exchanger
PERlOD ENDING SEPTEMBER ?O, 7954
TABLE 2.1. TENTATIVE SYSTEM DATA FOR THE CFRE FLUID CIRCUlfS
Temperature drop (or rise), OF
Pressure drop, psi
Flow rate, cfs
Velocity through tube matrix, fps
Reynolds number
Over-all heat transfer coefficient, Btu/hr.ft2*OF
Fuel-to-NaK temperature difference, OF
Moderator cooling system
Temperature drop (or rise) in heat exchanger, OF
Sodium-NaK temperature difference, OF 43
Pressure drop in heat exchanger, psi
Pressure drop in reflector, psi
Pressure drop in island, psi
Pressure drop in pressure shell, psi
Temperature rise in reflector, OF
Temperature rise in island, OF
Temperature rise in pressure shell, OF
Power generated in reflector, kw
Power generated in island, kw
Power generated in pressure shell, kw
Flow rate through reflector, cfs
Flow rate through island and pressure shell, cfs
NaK cooling system
Airflow through NaK radiators. cfrn
Radiator air pressure drop, in. H20
Blower power required, hp (total)
Blower power required, hp (per fan)
Total rodiator inlet face orea, ft2
Shield cooling system
Power generated in lead layer, kw
Power generated in water layer, kw
Pump data
Head, ft
Flow, gpm
Specific speed
Suction specific speed
impeller speed, rpm
Drive, hp
General
3,150
95
2,040
600
210
150,000
24
720
180
72
132
i 4
Circuit
Fuel No Na K
400
35
2.7
8.0
4,600
400
40
12.6
36.4
100 100
7 7
36
32
4
100
72
28
1.35
0.53
50 250 280
600 430 2,600
3,750
13,200
2,700
25 16 200