Abstract
Fume exhaust system is the main component of the novel blackbody cavity sensor with a single layer tube, which removes the fume by gas flow along the exhaust pipe to keep the light path clean. However, the gas flow may break the conditions of blackbody cavity and results in the poor measurement accuracy. In this paper, we analyzed the influence of the gas flow on the temperature distribution of the measuring cavity, and then calculated the integrated effective emissivity of the non-isothermal cavity based on Monte-Carlo method, accordingly evaluated the sensor measurement accuracy, finally obtained the maximum allowable flow rate for various length of the exhaust pipe to meet the measurement accuracy. These results will help optimize the novel blackbody cavity sensor design and use it better for measuring the temperature of molten steel.
Highlights
Design and analysis on fume exhaust system of blackbody cavity sensor for continuously measuring molten steel temperature
Molten steel temperature is a key parameter for the quality and efficiency of the slab and billet in continuous casting
Due to the high cost of the noble-metal thermocouple, it cannot be widely used. Another way was the infrared radiation temperature measurement method, which calculates the molten steel temperature based on blackbody radiation law.[5,6]
Summary
Design and analysis on fume exhaust system of blackbody cavity sensor for continuously measuring molten steel temperature.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
