A finite element method (FEM) model for the hybrid PV-TE uni-couple is presented to determine the optimal geometry of the thermoelectric generator (TEG) element for the maximum efficiency. The three-dimensional (3D) governing equations of the thermoelectric for the heat transfer are solved using the FEM based on the temperature dependent properties of TEG materials. The geometric parameters of the TEG were anlyzed in the simulation include the ratio of the area of n-and p-type (An/Ap), the length and the area of the TEG. The result shows that for different areas and different lengths of TEG, the maximum power outputs of the PV-TE all occur with An/Ap = 1 which is different from the TEG solely optimization. This study will provide the valuable reference for PV-TE design.
Li, G., Chen, X., Jin, Y., & Ji, J. (2017). Optimizing on thermoelectric elements footprint of the photovoltaic-thermoelectric for maximum power generation. In Energy Procedia (Vol. 142, pp. 730–735). Elsevier Ltd. https://doi.org/10.1016/j.egypro.2017.12.119