Authors: Yaochun Yao Kazuyuki Yatsuda Takayuki Watanabe Tsugio Matsuura Tetsuji Yano
Publish Date: 2009/07/07
Volume: 29, Issue: 5, Pages: 333-346
Abstract
An innovative inflight melting technology with multiphase AC arc was developed for glass industry The enthalpy probe and high speed video camera were used to characterize the temperature velocity and discharge behavior of multiphase AC arc The effects of input power and sheath gas flow rate on arc and melting behavior were investigated Results show that the temperature and velocity on arc center are increased with input power or sheath gas flow increase The fluctuation of luminance area ratio and coefficient of variation reflects the change of arc discharge behavior High temperature of plasma enhances the melting of granulated raw particles during inflight heating treatment The shrinkage of particle and the volatilization degree of Na2O increase under a larger flow rate of sheath gas The characterized arc behavior agrees with the melting behavior of glass raw materials which can provide valuable guidelines for the process control of glass melting
Keywords: