نتایج جستجو برای: thermodynamic efficiency

تعداد نتایج: 426691  

Journal: :IOP Conference Series: Earth and Environmental Science 2021

Journal: :International Journal of Theoretical Physics 2017

Journal: :Optics express 2013
Yi Xiang Yeng Walker R Chan Veronika Rinnerbauer John D Joannopoulos Marin Soljačić Ivan Celanovic

One of the keys towards high efficiency thermophotovoltaic (TPV) energy conversion systems lies in spectral control. Here, we present detailed performance predictions of realistic TPV systems incorporating experimentally demonstrated advanced spectral control components. Compared to the blackbody emitter, the optimized two-dimensional (2D) tantalum (Ta) photonic crystal (PhC) selective emitter ...

Journal: :Proceedings of the National Academy of Sciences 1989

2017
Michael C. Kopreski Michael Christopher Kopreski Gexin Yu Joshua Erlich

The anti-de Sitter/conformal field theory (AdS/CFT) correspondence conjectures a duality between field theories and higher dimensional theories of gravitation. Recent results describing thermodynamic systems in the AdS/CFT context include an exact description of the efficiency of black hole heat engines, suggesting questions regarding the nature of heat engines within this formulation and the e...

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