真空 ›› 2024, Vol. 61 ›› Issue (5): 30-35.doi: 10.13385/j.cnki.vacuum.2024.05.04
王松林, 张建付, 刘青龙, 米高园, 阴万宏, 吴青青, 魏巍
WANG Song-lin, ZHANG Jian-fu, LIU Qing-long, MI Gao-yuan, YIN Wan-hong, WU Qing-qing, WEI Wei
摘要： 为了提高圆形光学窗口表面透明导电膜加热除冰的效率,基于欧姆定律以及热传导效应的理论分析,建立了圆形光学窗口表面透明导电膜的加热除冰效率理论模型。通过数值模拟,计算了直径100 mm圆形光学窗口在-55 ℃环境中对10 mm厚冰层的加热除冰效率,并采用24 V直流电源加热的方式进行了试验验证。结果表明,理论计算的除冰时间与试验结果之间存在偏差,这主要是由于在除冰过程中,光学窗口表面产生的热能除了大部分用于除冰消耗以外,还有少部分通过热传导散热而被消耗,同时窗口表面一部分水被加热而吸收热量,从而导致能耗增加。基于试验结果和理论分析,进一步提出了提高加热除冰效率的措施。
中图分类号: TB133;TB131
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