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首页> 外文会议>ISES EuroSun 2014 Conference >The effect of solar reflectance, infrared emissivity, and thermal insulation of roofs on the annual thermal load of single-family households in México
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The effect of solar reflectance, infrared emissivity, and thermal insulation of roofs on the annual thermal load of single-family households in México

机译：太阳能反射，红外发射率和屋顶隔热对México的单户家庭的每年热负荷的影响

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摘要

In Mexico, as a result of the Mexican climate and predominant construction techniques, a significant part of the heat flow between single-family houses and the environment occurs through the roof. Because of this, reducing the energy expenditure for air conditioning requires knowledge of the thermal properties of roofs, including the solar reflectance (SR) and infrared emissivity (IE) of the outer surfaces and the thermal conductivity of the bulk material. Here we present the result of TRNSYS simulations of a sample household, where we systematically vary SR, IE, and thermal insulation of the exposed rooftop. Our results show that the greatest reductions in annual thermal load occur in cities with warmer climate. Thermal insulation itself only becomes important when both of the other properties are inappropriate for the local climate.
机译：在墨西哥，由于墨西哥气候和主要的施工技术，单家庭房屋和环境之间的综合热流部分通过屋顶发生。因此，降低空调的能量支出需要了解屋顶的热特性，包括外表面的太阳反射率（SR）和红外发射率（IE）和散装材料的导热率。在这里，我们介绍了样本家庭的TRNSYS模拟的结果，在那里我们系统地改变SR，即暴露屋顶的热绝缘。我们的研究结果表明，年度热量负荷的最大减少在暖温度温暖的城市。当两种其他性质不适合当地气候时，隔热本身只会变得重要。

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