Work

A joint computational and experimental study to evaluate Inconel-sheathed thermocouple performance in flames.

Year: 2005

Type: report

Abstract: A joint experimental and computational study was performed to evaluate the capability of the Sandia Fire Code VULCAN to predict thermocouple response temperature. Thermocouple temperatures recorded by an Inconel-sheathed thermocouple inserted into a near-adiabatic flat flame were predicted by companion VULCAN simulations. The predicted thermocouple temperatures were within 6% of the measured values, with the error primarily attributable to uncertainty in Inconel 600 emissivity and axial conduction losses along the length of the thermocouple assembly. Hence, it is recommended that future thermocouple models (for Inconel-sheathed designs) include a correction for axial conduction. Given the remarkable agreement between experiment and simulation, it is recommended that the analysis be repeated for thermocouples in flames with pollutants such as soot.

Source: OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)

DOI: 10.2172/923075

Authors: Aaron Brundage, Vernon Nicolette, A Donaldson, Sean Kearney, Walter Gill

Institutions: Office of Scientific and Technical Information, Sandia National Laboratories, National Technical Information Service

Language: English

Topic: Advanced Sensor Technologies Research

Subfield: Instrumentation

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: U.S. Department of Energy, Sandia National Laboratories

OpenAlex ID: W152014223

Cites: 3

Cited by: 13

Related to: 10