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。
In order to improve the deicing efficiency for transparent conductive film on the surface of circular optical window during heating,through theoretical analysis of the Ohm's law and heat conductive effect,a theoretical model of heating efficiency of transparent conductive film on the surface of circular optical window was established.Based on the numerical simulation of the theoretical model,the deicing efficiency of the circular optical window with a diameter of 100 mm for 10 mm thick ice sheet at-55℃was calculated.The experimental verification was carried out by heating with a 24 V DC power supply.The results show that there is a deviation between the deicing time of the experimental results and the theoretical calculation.The main reason is that in the process of deicing,in addition to most of the heat generated by the optical window surface,a small part of the heat is consumed by heat conduction and heat dissipation,and in the actual process of heating and deicing,part of the water on the window surface is heated and absorbs heat,resulting in increased energy consumption.Based on the experimental results and theoretical analysis,further measures to improve the efficiency of heating deicing are proposed.
作者
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(Xi'an Institute of Applied Optics,Xi'an 710065,China)
出处
《真空》
CAS
2024年第5期30-35,共6页
Vacuum
基金
海军工程院型号项目研制(X2313)。
关键词
光学窗口
除冰效率
透明导电膜
能耗
optical window
deicing efficiency
transparent conductive film
energy consumption
