Abstract
According to modeling theory, a cold-state model with 1:10 scale was established for a regenerative heating annular furnace. Following to the PIV (Particle Image Velocimetry) testing method by using tracing particles, a high-speed camera was adopted to measure the velocity distribution in the furnace. The experimental results found that the airflow from the burners could not be sucked by the first opposite burner on the other side wall; and that closing the soaking section results to farther suction location, which prolongs gas residence time in the furnace, and it also avoids the rich-fueled smoke gas short circuit which usually occurs in the regenerative heating furnace. The velocity profiles have a great variance in the chamber. With farther location to the nozzle, velocity profiles are more even. At a certain angle of the air jet, there are two vortexes close to the burner. With higher flow rate, it is easier for the airflow to reach the opposite chamber wall.
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