AN ANALYSIS OF TRANSIENT CALORIMETRY,

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Abstract:

The theory and design of a transient calorimeter for convective and radiant heating rate measurements are presented. The major sources of error are pointed out, including thermal gradients in the slug, heat losses, variable thermal properties, variable heat flux, and surface effects. It is shown that the NOL calorimeter can be depended on for an accuracy of about plus or minus 5. Experimental measurements in an oxyacetylene burner, arc image furnace, and arc wind tunnel are presented. The measured heat fluxes range from about 20 calsq cm sec 74 BTUsq. ft sec to 270 calsq cm sec 1000 BTUsq ft sec. In addition to the results for the NOL calorimeter, a general survey of work done by others is presented. Author

Author(s):
Hartmann, Bruce
Author Organization(s):
NAVAL ORDNANCE LAB WHITE OAK MD
Pagination:
0031

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NOLTR-68-35
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*CALORIMETRY, *HEAT FLUX, CALORIMETERS, ACCURACY, FLAMES, ARC HEATERS, WIND TUNNELS
Field(s)/Group(s):
Test Facilities, Equipment and Methods, Thermodynamics
Report Date:
1968 Apr 09