In the winter, the low sun penetrates glass with a very high solar heat gain coefficient, and heats the floor, which in and of itself ACTS as a thermal mass.

冬天太阳高度低，穿透有很高太阳能吸热系数的玻璃加热地板，地板本身也充当热质。

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The effect of wind speed on the top heat loss coefficient of flat plate solar collector has been analyzed, the modified coefficient for wind speed effect and its empirical equation has been derived.

本文分析了风速对平板型太阳集热器顶部热损失系数的影响，导出了风速影响修正系数及经验公式。

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Applying cellular technology and heat pipe technology in flat plat solar water heater can greatly reduce heat losing and enhance average daily coefficient.

把蜂窝技术和热管技术结合起来应用于平板式太阳能热水器，可以大大减少热损失，提高日平均效率。

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