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DESIGN, CONSTRUCTION, AND PERFORMANCE OF TWO COMPACT AIR COOLED SODIUM HEAT EXCHANGERS

Technical Report ·
OSTI ID:4694389
; ;
A bare-tube crossflow heat exchanger and a finned-tube crossflow heat exchanger were designed, constructed, and tested. The exchangers have sodium as a tube side fluid and air as a shell side fluid and are constructed of Inconel. The bare-tube heat exchanger has three unmixed passes on the sodium side and one mixed pass on the air side. The finned-tube heat exchanger has one unmixed pass on the sodium side and one mixed pass on the air side. Both exchangers were designed to have a 10-kw heat exchanger rate at 1500 deg F, 660 lb/h on the sodium side and at 80 deg F inlet temperature, 206 lb/h on the air side. The tests were run from 1 to 4 kw at sodium temperatures up to 830 deg F and sodium flow rates up to 2500 lb/hr. The inlet air temperatures were about 80 deg F. The maximum air flow was 220 lb/hr. The maximum pressure drop on the air side of the bare-tube heat exchanger was found to be 0.15 in. of water. The pressure drop on the air side of the finned tube heat exchanger was negligible. The sodium side was tested for pressure drop with water, and principles of dimensional similitude were applied to the test procedure to predict pressure drop in the sodium system. The maximum predicted pressure drop in the sodium system was 10 psi in the bare- tube heat exchanger and 1 psi in the finned-tube heat exchanger. The heat transfer coefficients for the air side are presented in the form of a stanton number. (auth)
Research Organization:
Ames Lab., Ames, Iowa
DOE Contract Number:
W-7405-ENG-82
NSA Number:
NSA-17-029040
OSTI ID:
4694389
Report Number(s):
IS-562
Country of Publication:
United States
Language:
English

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Related Subjects

AIR
ALUMINUM ALLOYS
CHROMIUM ALLOYS
COUNTER CURRENT
ENGINEERING AND EQUIPMENT
FINS
FLUID FLOW
GAS COOLANT
HEAT EXCHANGERS
HEAT TRANSFER
INCONEL ALLOYS
LIQUID METALS
MIXING
NICKEL ALLOYS
NIOBIUM ALLOYS
PERFORMANCE
PLANNING
POWER
PRESSURE
SHELLS
SODIUM
STANTON NUMBER
TESTING
TITANIUM ALLOYS
TUBES
VARIATIONS
WATER