Influcnce of a probe inserted in quasi-two-dimensional flame

Abstract

Thermocouple is usefull tool in order to measure the flame temperature. However, the errors by heat convection and radiation can't be avoided and must be climinated by one of the correction method. These method only concern with heat loss to thermocouple. In this report, the infuence of inserted probe for quasi-two-dimensional flame arc visualized by means of infrared radiation thermometer. As the result, existence of higher temperature region at upstream and both sides of the inserted probe are found. In this area the temperature increases 100°C at maximum from normal value. This means that a probe in a flame must be influenced not only heat convection itself but also radiation from the high temperature region.