Maximizing Electric Power through Spectral‐Splitting Photovoltaic‐Thermoelectric Hybrid System Integrated with Radiative Cooling

As zero‐emission technologies, a daytime radiative cooling (RC) strategy developed recently, and photovoltaic (PV) and thermoelectric (TE) technologies have aroused great interest to reduce fossil fuel consumption and carbon emissions. How to integrate these state‐of‐the‐art technologies to maximise clean electricity from the sun and space remains a huge challenge, and the limit efficiency is still unclear. In this study, a spectral‐splitting PV‐TE hybrid system integrated with RC is proposed to maximise clean electricity from the sun and space without any emissions. For the sun acting as a typical constant heat‐flux heat source, the current thermoelectric theory overestimates the thermoelectric efficiency highly since the theory is based on constant temperature‐difference conditions. A new theory based on heat‐flux conditions is employed to achieve maximum thermoelectric efficiency. The PV‐TE hybrid system with RC is superior to the conventional hybrid system, not only in terms of higher efficiency but also in its 24‐h operation capacity. In a system with a single‐junction cell, the total efficiency with 30 suns (39.4%) is higher than the theoretical PV efficiency at 500 suns (38.2%). In a hybrid system with four‐junction cells, total efficiency is over 65% which is superior to most current photoelectric and thermal power systems.

[1]  Zihua Wu,et al.  Advances and outlook of TE-PCM system: a review , 2022, Carbon Neutrality.

[2]  Wei Li,et al.  Photonics and thermodynamics concepts in radiative cooling , 2022, Nature Photonics.

[3]  A. Huzayyin,et al.  Review of cooling techniques used to enhance the efficiency of photovoltaic power systems , 2022, Environmental Science and Pollution Research.

[4]  G. Min,et al.  Hybrid photovoltaic-thermoelectric system using a novel spectral splitting solar concentrator , 2022, Energy Conversion and Management.

[5]  S. Fan,et al.  Reaching the Ultimate Efficiency of Solar Energy Harvesting with a Nonreciprocal Multijunction Solar Cell , 2021, 2023 Conference on Lasers and Electro-Optics (CLEO).

[6]  Assaf Y Anderson,et al.  An open-access database and analysis tool for perovskite solar cells based on the FAIR data principles , 2021, Nature Energy.

[7]  Chaudhary Awais Salman,et al.  An Experimental and Comparative Performance Evaluation of a Hybrid Photovoltaic-Thermoelectric System , 2021, Frontiers in Energy Research.

[8]  R. Vilà,et al.  Adaptive covers for combined radiative cooling and solar heating. A review of existing technology and materials , 2021 .

[9]  Ehsanur Rahman,et al.  Semiconductor thermionics for next generation solar cells: photon enhanced or pure thermionic? , 2021, Nature Communications.

[10]  Tengyu Ma,et al.  A review on the integration of radiative cooling and solar energy harvesting , 2021 .

[11]  M. Santamouris,et al.  Expanding the applicability of daytime radiative cooling: Technological developments and limitations , 2021, Energy and Buildings.

[12]  Tengyu Ma,et al.  Investigating the Effect of Radiative Cooling on the Operating Temperature of Photovoltaic Modules , 2021, Solar RRL.

[13]  C. Markides,et al.  Efficiency limits of concentrating spectral-splitting hybrid photovoltaic-thermal (PV-T) solar collectors and systems , 2021, Light: Science & Applications.

[14]  Qinghong Zhang,et al.  The Design of Near-Perfect Spectrum-Selective Mirror Based on Photonic Structures for Passive Cooling of Silicon Solar Cells , 2020, Nanomaterials.

[15]  Xiaobo Yin,et al.  Terrestrial radiative cooling: Using the cold universe as a renewable and sustainable energy source , 2020, Science.

[16]  A. Cattoni,et al.  Progress and prospects for ultrathin solar cells , 2020, Nature Energy.

[17]  P. Bermel,et al.  Lightweight, Passive Radiative Cooling to Enhance Concentrating Photovoltaics , 2020, Joule.

[18]  Christopher Yu Hang Chao,et al.  Field investigation of a photonic multi-layered TiO2 passive radiative cooler in sub-tropical climate , 2020, Renewable Energy.

[19]  Mohammed Ismail,et al.  A comprehensive review of Thermoelectric Generators: Technologies and common applications , 2019 .

[20]  M. Yamaguchi,et al.  Super-Multi-Junction Solar Cells—Device Configuration with the Potential for More Than 50% Annual Energy Conversion Efficiency (Non-Concentration) , 2019, Applied Sciences.

[21]  M. Zaman.  Photonic radiative cooler optimization using Taguchi's method , 2019, International Journal of Thermal Sciences.

[22]  Qiang Li,et al.  A novel optimal design method for concentration spectrum splitting photovoltaic–thermoelectric hybrid system , 2018, Energy.

[23]  N. Yu,et al.  Hierarchically porous polymer coatings for highly efficient passive daytime radiative cooling , 2018, Science.

[24]  Elias K. Stefanakos,et al.  A review of clear sky radiative cooling developments and applications in renewable power systems and passive building cooling , 2018 .

[25]  M. Pinar Mengüç,et al.  Passive radiative cooling design with broadband optical thin-film filters , 2017 .

[26]  A. Gentle,et al.  Radiative cooling: Energy savings from the sky , 2017, Nature Energy.

[27]  Hong Wang,et al.  A review of thermal absorbers and their integration methods for the combined solar photovoltaic/thermal (PV/T) modules , 2017 .

[28]  Shanhui Fan,et al.  A Comprehensive Photonic Approach for Solar Cell Cooling , 2017 .

[29]  Aaswath Raman,et al.  Radiative cooling to deep sub-freezing temperatures through a 24-h day–night cycle , 2016, Nature Communications.

[30]  James Loomis,et al.  Concentrating solar thermoelectric generators with a peak efficiency of 7.4% , 2016, Nature Energy.

[31]  Ahmad Mojiri,et al.  Spectral light management for solar energy conversion systems , 2016 .

[32]  Gao Min,et al.  Model for geometry optimisation of thermoelectric devices in a hybrid PV/TE system , 2016 .

[33]  K. Bartholomé,et al.  Spectrum splitting for efficient utilization of solar radiation: a novel photovoltaic–thermoelectric power generation system , 2015 .

[34]  Marc Abou Anoma,et al.  Passive radiative cooling below ambient air temperature under direct sunlight , 2014, Nature.

[35]  F. Alharbi,et al.  Optical concentration effects on conversion efficiency of a split-spectrum solar cell system , 2014 .

[36]  Elizabeth Thomsen,et al.  Spectral beam splitting for efficient conversion of solar energy - A review , 2013 .

[37]  C. Lertsatitthanakorn,et al.  Thermal Modeling of a Hybrid Thermoelectric Solar Collector with a Compound Parabolic Concentrator , 2013, Journal of Electronic Materials.

[38]  Zhifeng Wang,et al.  Numerical analysis and optimization of a spectrum splitting concentration photovoltaic–thermoelectric hybrid system , 2012 .

[39]  D. C. Law,et al.  Band gap‐voltage offset and energy production in next‐generation multijunction solar cells , 2011 .

[40]  Gang Chen,et al.  High-performance flat-panel solar thermoelectric generators with high thermal concentration. , 2011, Nature materials.

[41]  M. Planck.  The Theory of Heat Radiation , 2010 .

[42]  Gao Min,et al.  ZT Measurements Under Large Temperature Differences , 2010 .

[43]  H. Macleod,et al.  Thin-Film Optical Filters, Fourth Edition , 2010 .

[44]  L. Hirst,et al.  Fundamental losses in solar cells , 2009 .

[45]  E. Skoplaki,et al.  ON THE TEMPERATURE DEPENDENCE OF PHOTOVOLTAIC MODULE ELECTRICAL PERFORMANCE: A REVIEW OF EFFICIENCY/ POWER CORRELATIONS , 2009 .

[46]  Lidong Chen,et al.  Thermoelectrics: Direct Solar Thermal Energy Conversion , 2008 .

[47]  Arvind Shah,et al.  Efficiency limits for single-junction and tandem solar cells , 2006 .

[48]  David R. Mills,et al.  Spectral beam splitting technology for increased conversion efficiency in solar concentrating systems: a review , 2004 .

[49]  A. Hjortsberg,et al.  Radiative cooling to low temperatures: General considerations and application to selectively emitting SiO films , 1981 .

[50]  P. Landsberg,et al.  Thermodynamic energy conversion efficiencies , 1980 .

[51]  H. Queisser,et al.  Detailed Balance Limit of Efficiency of p‐n Junction Solar Cells , 1961 .

[52]  L. Yue.  Solar power generation , 1987 .