评估陆地热辐射二极管与大气建模的潜在功率输出
Jamie A Harrison1, Phoebe M Pearce1, Fei Yang2
1School of Photovoltaic and Renewable Energy Engineering, UNSW Sydney, Kensington, NSW 2052, Australia.
iScience
|December 5, 2024
概括
热辐射二极管从地球的热量中产生电力. 大气条件显著影响输出功率,在特定带隙和排放角度发现最佳性能,指导材料选择以提高效率.
科学领域:
- 热力学是一种热力学.
- 材料科学 材料科学 材料科学
- 大气科学 大气科学
背景情况:
- 热辐射二极管利用地球向寒冷的夜空发射的热辐射来发电.
- 对大气下降辐射的准确建模对于评估设备性能至关重要.
研究的目的:
- 在各种大气条件下评估热辐射二极管的性能.
- 为了确定最大限度地提高功率密度的最佳带隙和操作参数.
主要方法:
- 在地球表面温度下的热辐射二极管的详细平衡建模.
- 在九种不同的条件下精确建模大气下降辐射.
- 对影响设备效率的辐射和非辐射过程的分析.
主要成果:
- 在辐射极限中,功率密度从0.34到6.5W/m2不等.
- 最佳带隙被确定在0.094 eV附近.
- 限制排放/吸收角略微增加了输出功率.
结论:
- 大气条件和二极管带隙显著影响发电.
- 材料选择取决于平衡辐射效率与非辐射损失.
- 在理想条件下,0.094 eV的带隙是最优的,但如果辐射效率显著降低,则更高的带隙可能是最好的.
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