Performance of Different Temperature Sensors in St

Authors: Mohamed A Sultan

Publish Date: 2010/07/07

Volume: 46, Issue: 4, Pages: 853-881

PDF Link

Abstract

Defining a methodology for measuring temperature in fire resistance furnaces is a challenge This paper presents and discusses the performance of six different types of temperature sensors in wall and floor fire resistance furnaces namely the ASTM E119 shielded thermocouples ISO 834 plate thermometers directional flame thermometers barebead thermocouples Inconel grounded and ungrounded sheathed thermocouples The Inconel grounded and ungrounded sheathed thermocouples provided comparable results to those of the bearbead thermocouples and are most suitable when a fast response time is desirable Because of the fast response time and good durability grounded and ungrounded junction thermocouples are wellsuited for use in controlling the temperature in fire resistance standard test furnaces The predicted and measured incident heat flux in furnaces controlled by either the barebead or grounded and ungrounded sheathed thermocouples are in good agreement

Keywords: