摘要
根据传热学原理,建立了天然橡胶布和钢板的简单传热模型,计算了一日内天然橡胶布和钢板温度随时间的变化.结果表明:天然橡胶布表面温度可以通过热平衡方程求解;钢板温度日变化受厚度的影响最大,厚度越大,温度变化越平缓,厚度越小,越接近天然橡胶布.表面发射率对钢板或天然橡胶布温度变化有相同的影响,发射率越低,一日内表面温度就越高.太阳能吸收系数仅在白天具有太阳辐射时对温度有影响,它与发射率对温度的影响刚好相反.
Based on the thermodynamics principle,a simple thermal model of steel plate and rubber cloth was established,thus their temperature changes in a day are calculated.The results show that the surface temperature of the rubber cloth can be acquired by solving the thermal equilibrium equation;the steel plate thickness can strongly affect the plate temperature changes within a day.（The thicker the plat,the smoother the temperature change is,and the more thin,the more it approaches to nature rubber.）The surface emissivity affects the temperature of the steel plate or the rubber cloth in the same way but the absorbing factor plays the opposite effect on the steel plate or the rubber cloth compared with the emissivity and it affects merely in daylight.
出处
《光电技术应用》
2010年第3期18-21,共4页
Electro-Optic Technology Application
作者简介
作者简介：曹益晨（1983-），男，山东人，硕士研究生，主要研究方向为结构工程．
