HEAT TRANSFER FROM FIN-TUBE RADIATORS.

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Abstract:

A FORTRAN language computer program is developed to calculate the radiation heat transfer characteristics of circular tubes with longitudinal fins. Mutual irradiation effects between the tubes and the fin are included. Arbitrary fin emissivity, fin thickness, and tube emissivity are also allowed in the program. The results indicate that the fin thickness effects are practically negligible and that, for equal fin and tube emissivities, the overall fin-tube efficiency is not proportional to the emissivity. For example, using for reference the black surface results, the use of an efficiency proportional to the emissivity would result in underestimating the efficiency by 14.4 percent in the case of a tube radius to fin length ratio of 1.0 and a fin-tube emissivity of 0.5. Author

Author(s):
Sarabia, Michael Francisco
Author Organization(s):
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO
Descriptive Note:
Master's thesis,
Annotation:
Heat transfer from fin-tube radiators.
Pagination:
0066

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFIT-GAM/ME/64 16
Monitor Series:
GAM/ME/64 16
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*HEAT TRANSFER, THERMAL RADIATION), (*RADIATORS(HEATING AND COOLING), HEAT TRANSFER), EMISSIVITY, BLACKBODY RADIATION, METEORS, SPACECRAFT, THICKNESS, EQUATIONS, PROGRAMMING LANGUAGES, PHYSICAL PROPERTIES
Report Date:
1964 Jun 01