Facility for Calibrating Heat Flux Sensors in a Convective Environment.
Facility for Calibrating Heat Flux Sensors in a
Holmberg, D. G.; Steckler, K. D.; Womeldorf, C. A.;
Grosshandler, W. L.
NIST SP 971; August 2001.
NIST SP 971: "Collected Reports and Publications by the
National Institute of Standards and Technology on Heat
Flux Gage Calibration and Usage." AND American Society
of Mechanical Engineers (ASME) Heat Transfer Division.
Proceedings. Volume 3. HTD-Vol. 353. June 16-21, 1997,
Dallas, TX, 165-171 pp, 2001.
Available from:For More Information on NIST SP 971 visit: WEBSITE:
heat flux; sensors; nozzles; heaters; thermocouples;
The National Institute of Standards and Technology
(NIST) presently conducts heat flux sensor calibrations
using standard radiation methods. In practice, however,
many heat flux sensors are used in test environments
where convective heat transfer dominates. Equivalent
fluxes in radiation or convection can produce different
sensor responses due to sensor surface properties (e.g.,
emissivity, roughness) and near-surface structure (e.g.,
transmissivity, temperature distribution). These issues
are being addressed at NIST by the development of a
convective heat flux facility. By extending calibration
capabilities to include a primarily convective
environment direct comparisons of sensors in controlled
convective and radiative environments will be possible.
This report describes the progress of the convective
heat flux calibration facility under development at