论文标题
光伏系统热力学的统一方法
A unified approach to the thermodynamics of a photovoltaic system
论文作者
论文摘要
热力学被认为是一个普遍的真理，涵盖了所有宏观对象。因此，令人惊讶的是，在我们当前的理解中，到目前为止，光伏效应已经避开了热力学的第一和第二定律。不一致是从光伏遵守详细平衡的明显定律的事实中得出的。由于辐射过程仅取决于化学势和温度，详细平衡以及热力学定律的两个独立变量，因此无法相互解决。在这项工作中，我们通过提出系统控制尚未第三个独立变量来解决这种不兼容，这与发射率有关。这种统一不仅提高了我们对光线相互作用的基本理解，而且更重要的是，我们可以评估高级光伏概念的限制因素，设计用于升高温度。其中包括热伏洛尔特2，热辐射和嗜热太阳能转化以及辐射冷却，这对我们开发高级可再生能源技术的能力有助于。
Thermodynamics is accepted as a universal truth, encompassing all macroscopic objects. Therefore, it is surprising to find that, within our current understanding, the photovoltaic effect has so far eluded the first and second laws of thermodynamics. The inconsistency emerges from the fact that photovoltaics obey a distinct law of detailed balance1. Since radiative processes depend on only two independent variables that are the chemical potential and the temperature, the detailed balance, and the two laws of thermodynamics cannot be mutually solved. In this work, we resolve this incompatibility by proposing that the system is controlled by yet a third independent variable, which is related to the emissivity. This unification not only advances our fundamental understanding of light-matter interactions but, perhaps more importantly, allows us to assess the limiting factors of advanced photovoltaic concepts designed for elevated temperatures. These include thermophotovoltaics2, thermoradiative and thermophotonic solar power conversion, and radiative cooling, which are instrumental in our ability to develop advanced renewable energy technologies.
