Restraint Method for Overcoming Heating Irregularity and Improving Heating Equipment Efficiency for Beverage Cans Using High Frequency Induction Heating

概要

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The authors achieved the restraint of the heating irregularity in the heating equipment of beverage cans by the high-frequency induction heating method and determined the resulting improvement in the heating efficiency. The heating irregularity between the top and bottom of the can was reduced to less than 3°C by improving the arrangement of the heating coil for the beverage can by the thinning of the winding, and by circuit configuration. Furthermore, the efficiency of the power conversion was improved from 93.0% to 97.4%. Here, the configuration of the equipment and the experimental results are reported.