Nonisothermal pyrometry techniques: Research report

Technical Report · Tue Mar 01 04:00:00 EST 1988

DOI:https://doi.org/10.2172/6079405· OSTI ID:6079405

Hensel, J. P.

In many fossil energy (FE) conversion processes, the only means by which nonintrusive, in situ temperature measurements can be made is through the use of optical techniques. Pyrometry is one such technique. The use of most pyrometric techniques requires that the target within the pyrometer's field of view be isothermal. Often in FE processes, this isothermal requirement cannot be met. Thus, in order for pyrometry to realize its full potential in FE instrumentation, nonisothermal techniques are needed. In this effort to develop nonisothermal pyrometry techniques, the responses of eight different pyrometers were investigated to determine the response of each to nonisothermal targets (i.e., targets with two or more temperature modes, where a ''mode'' represents an isothermal section of the target). The effect of varying emissivity was also investigated. These investigations were performed using computer simulations of the techniques and the targets. Based on the results obtained, the most promising pyrometry techniques were specifically modified to take into account two-temperature mode targets and were then tested using both computer simulation and laboratory experimentation. 19 refs., 6 figs., 14 tabs.

• Research Organization: USDOE Morgantown Energy Technology Center, WV
• OSTI ID: 6079405
• Report Number(s): DOE/METC-88/2029; ON: DE88010282
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000 -- Coal
Lignite
& Peat-- Combustion
440300* -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
CARBONACEOUS MATERIALS
COAL
COMBUSTION PROPERTIES
COMPUTERIZED SIMULATION
DATA
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
INFORMATION
MATERIALS
MEASURING INSTRUMENTS
NUMERICAL DATA
OPTICAL PYROMETERS
PERFORMANCE TESTING
PYROMETERS
SIMULATION
TEMPERATURE DISTRIBUTION
TEMPERATURE MEASUREMENT
TESTING
THEORETICAL DATA
THERMODYNAMICS