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首页> 外文期刊>RSC Advances >Energy harvesting from solar irradiation in cities using the thermoelectric behavior of carbon fiber reinforced cement composites
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Energy harvesting from solar irradiation in cities using the thermoelectric behavior of carbon fiber reinforced cement composites

机译：利用碳纤维增强水泥复合材料的热电行为从城市的太阳辐射中收集能量

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摘要

In big cities, intensive solar radiation in summers increases the surface temperature of pavements and building roofs to around 60 degrees C and results in a significant increase in the ambient temperature. It is desirable to capture outdoor thermal energy and convert it into electrical energy. Energy harvesting experiments based on the thermoelectric behavior of carbon fiber reinforced cement composites (CFRC) have been performed for the first time under simulated solar irradiation. The thermoelectric figure of merit (1.334 x 10(-7)) was determined at room temperature for CFRC with a carbon fiber content of 1.0 weight percent. A slab sample was used to estimate the energy harvesting quality of CFRC at a temperature difference of about 60 degrees C. 4-5 mu w of power was obtained from a one square meter CFRC slab with a thickness of 20 mm. The harvested energy of this one square meter CFRC slab reached a maximum of 8.4 x 101(-6) J over 420 minutes of irradiation, while its surface temperature increased quickly.
机译：在大城市中，夏季强烈的太阳辐射将人行道和建筑物屋顶的表面温度提高到约60摄氏度，并导致环境温度显着升高。期望捕获室外热能并将其转换成电能。首次在模拟太阳辐射下进行了基于碳纤维增强水泥复合材料（CFRC）热电性能的能量收集实验。对于碳纤维含量为1.0重量百分比的CFRC，在室温下确定其热电性能因数（1.334 x 10（-7））。使用一块平板样品来估计温度差约为60摄氏度时CFRC的能量收集质量。从厚度为20 mm的一平方米CFRC平板中获得4-5瓦特的功率。在420分钟的辐照下，这一平方米的CFRC平板的能量采集最大值达到8.4 x 101（-6）J，而其表面温度却迅速升高。

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