HEAT-TRANSFER STUDIES ON A FORCED CONVECTION LOOP WITH MONOISOPROPYLBIPHENYL
Technical Report
·
OSTI ID:4281050
Heat-transfer coefficients for monoisopropylbiphenyl, heated in a long horizontal tube under conditions of turbulent flow, are correlated to an average deviation of plus or minus 0.99 percent with an equation of the Dittus-Boelter type. Physical properties used in correlation work are presented. The coefficients extended from 483 to 3107 Btu/hr-ft/sup 2/-- deg F for the following ranges of conditions bulk-fluid temperatures, 240 to 604 deg F; heat-transfer surface temperatures, 312 to 816 deg F; heat fluxes, 44,800 to 308,000 Btu/hr-ft/ sup 2/; Reynolds numbers, 18,500 to 350,000; fluid velocities, 5.7 to 36.4 ft/sec. In fouling experiments, no scaling of the heat-transfer surface of an organic type was observed at the extreme attainable conditions of 850 deg F heat-transfer surface temperature and 5ft/sec fluid velocity. The condition of the equipment after 2 1/2 years of service is discussed. (auth)
- Research Organization:
- Naval Research Lab., Washington, D.C.
- NSA Number:
- NSA-13-004811
- OSTI ID:
- 4281050
- Report Number(s):
- NRL-5225; Project NS 200-021
- Country of Publication:
- United States
- Language:
- English
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