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本文提出了1种新型内置可调遮阳膜的中空玻璃窗,并论述了该中空玻璃窗的构造形式、工作原理和控制模式。而后采用门窗计算软件计算了该中空玻璃窗在4种控制模式下的遮阳系数、传热系数和可见光透射比,计算结果表明该中空玻璃窗遮阳系数的可调节范围为0.565～0.712,传热系数的可调节范围为1.464～1.778 W/(m2.℃),可见光透射比的可调节范围为0.379～0.644。同时也对普通透明中空玻璃窗的遮阳系数、传热系数和可见光透射比进行了计算,并将计算结果和内置可调遮阳膜与内置百叶的中空玻璃窗的热工性能进行了比较,结果显示内置可调遮阳膜中空玻璃窗的传热系数和遮阳系数均有一定的可调节范围,并且该窗的可见光透射比在一定的可调节范围内不影响室内日常照明,操作简单、响应时间较快,是一种性能较为优越的新型可调节智能窗。
In this paper, a new kind of hollow glass window with adjustable sun-shading film is proposed. The construction, working principle and control mode of the hollow glass window are also discussed. Then, the calculation of the shading coefficient, heat transfer coefficient and visible light transmittance of the insulating glazing under four control modes was carried out by using windows and doors calculation software. The calculated results show that the adjustable range of shading coefficient of the insulating glazing is 0.565 ~ 0.712, the heat transfer coefficient The adjustable range of 1.464 ~ 1.778 W / (m2. ℃), visible light transmittance adjustable range of 0.379 ~ 0.644. At the same time, the shading coefficient, heat transfer coefficient and visible light transmittance of ordinary transparent insulating glazing are also calculated, and the calculation results and the thermal performance of the built-in adjustable sunshade and insulating glass with built-in louver are compared. The results show Built-in adjustable sunshade hollow glass window heat transfer coefficient and shading coefficient has a certain adjustable range, and the visible light transmittance of the window within a certain adjustable range does not affect the daily indoor lighting, simple operation, fast response time , Is a new type of smart adjustable window with superior performance.