Temperature measurement of a burning surface by a thermocouple II

Atsushi Ishihara, K. C. Tang, M Quinn Brewster

Research output: Contribution to conferencePaper

Abstract

The measurement of surface temperature of a burning solid using microthermocouples was investigated experimentally and theoretically. The experimental investigation used ammonium perchlorate (AP). The theoretical investigation was based on a heat transfer analysis. Specifically, the error introduced due to heat conduction through the thermocouple leads was examined. The decrease in indicated surface temperature due to heat conduction through the leads was found to be as large as 100 K, depending on wire diameter, burning rate, and lead wire angle. An appropriate nondimensional parameter based on these variables is obtained for characterizing temperature error. In addition a significant finding was made with respect to the appearance or absence of a temperature plateau at the burning surface. Both the experimental and theoretical results show the absence of a plateau when the thermocouple bead emerges from the solid into the gas phase. This result is in contrast to the commonly assumed condition that the emergence of the bead is associated with a plateau in temperature, which has widely been used to identify the surface temperature.

Original languageEnglish (US)
StatePublished - Dec 1 2005
Event41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit - Tucson, AZ, United States
Duration: Jul 10 2005Jul 13 2005

Other

Other41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
CountryUnited States
CityTucson, AZ
Period7/10/057/13/05

Fingerprint

Thermocouples
Temperature measurement
Heat conduction
Temperature
Wire
Heat transfer
Gases

ASJC Scopus subject areas

  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this

Ishihara, A., Tang, K. C., & Brewster, M. Q. (2005). Temperature measurement of a burning surface by a thermocouple II. Paper presented at 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Tucson, AZ, United States.

Temperature measurement of a burning surface by a thermocouple II. / Ishihara, Atsushi; Tang, K. C.; Brewster, M Quinn.

2005. Paper presented at 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Tucson, AZ, United States.

Research output: Contribution to conferencePaper

Ishihara, A, Tang, KC & Brewster, MQ 2005, 'Temperature measurement of a burning surface by a thermocouple II', Paper presented at 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Tucson, AZ, United States, 7/10/05 - 7/13/05.
Ishihara A, Tang KC, Brewster MQ. Temperature measurement of a burning surface by a thermocouple II. 2005. Paper presented at 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Tucson, AZ, United States.
Ishihara, Atsushi ; Tang, K. C. ; Brewster, M Quinn. / Temperature measurement of a burning surface by a thermocouple II. Paper presented at 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Tucson, AZ, United States.
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