一种利用光子化学势增强被动辐射冷却的理论模型

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关键词：光子化学势；热辐射二极管；电致发光冷却；被动辐射冷却中图分类号：0432.1 文献标识码：ADOI：10.37188/CJL.20250040 CSTR：32170.14.CJL.20250040

Abstract：Passiveradiative cooling has garnered significantatentiondue to itspotential in energy conservation andenvironmental regulation.However，thecooling powerof passiveradiativecoolingisinherentlylimited by Planck'slaw.Recent research found that positive photon chemical potential has the potential to enhance radiation power，albeit it necesitates anactive energy input.This study proposes atheoretical model integratingaheat engine andathermalradiationdiode（TRD）thatcanpasivelyachieve positivephotonchemical potential，thereby enhancingradiative coling power.Theresults demonstrate thatthe integrated system ofTRDand thermoelectric generator （TEG）can efectively improve cooling power.Theoretical results indicate that the TRD-Carnot engine coupled systemhasthe potential toachieveapeak radiation powerdensityof 606.3 W/m²when the Carnot engine operates at 300 K（hotreservoir）and 28O K（cold reservoir）．The peak radiation power density has the potential to exceed the ideal blackbody radiation density at 300K ，which is 459W/m2 .This study theoretically confirms that the synergistic effect between TRD and heat engine provides a novel approach for enhancing radiative cooling performance.

Keywords：photon chemical potential;thermoradiative diodes；electroluminescence cooling；pasiveradiativecooling

1引言

随着化石能源的过度开发，热污染问题日益严重，对地球热平衡系统的调控机制提出了重大挑战。（剩余17178字）