TY - JOUR
T1 - Fundamental Efficiency Bounds for the Conversion of a Radiative Heat Engine's Own Emission into Work
AU - Pusch, Andreas
AU - Gordon, Jeffrey M.
AU - Mellor, Alex
AU - Krich, Jacob J.
AU - Ekins-Daukes, Nicholas J.
N1 - Publisher Copyright:
© 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "http://creativecommons.org/licenses/by/4.0/" Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
PY - 2019/12/6
Y1 - 2019/12/6
N2 - The thermoradiative diode is a novel heat engine that converts athermal radiative emission from a hot converter to a colder environment into work. This stands in contrast to essentially all radiative heat engines realized to date, where an external hot reservoir radiates toward a converter that resides at (and can be reversibly coupled to) a cold reservoir. We derive the fundamental bounds on conversion efficiency and power production for generalized far-field hot-side heat engines with radiative exchange that can be black body (thermal) or, more generally, athermal. This is followed by the corresponding derivation for the rich landscape of performance bounds for the specific case of thermoradiative diodes, including why the Landsberg-efficiency limit associated with heat engines that include radiative exchange can be surpassed, and how the ultimate Carnot-efficiency limit could be approached.
AB - The thermoradiative diode is a novel heat engine that converts athermal radiative emission from a hot converter to a colder environment into work. This stands in contrast to essentially all radiative heat engines realized to date, where an external hot reservoir radiates toward a converter that resides at (and can be reversibly coupled to) a cold reservoir. We derive the fundamental bounds on conversion efficiency and power production for generalized far-field hot-side heat engines with radiative exchange that can be black body (thermal) or, more generally, athermal. This is followed by the corresponding derivation for the rich landscape of performance bounds for the specific case of thermoradiative diodes, including why the Landsberg-efficiency limit associated with heat engines that include radiative exchange can be surpassed, and how the ultimate Carnot-efficiency limit could be approached.
UR - http://www.scopus.com/inward/record.url?scp=85077202657&partnerID=8YFLogxK
U2 - 10.1103/PhysRevApplied.12.064018
DO - 10.1103/PhysRevApplied.12.064018
M3 - Article
AN - SCOPUS:85077202657
SN - 2331-7019
VL - 12
JO - Physical Review Applied
JF - Physical Review Applied
IS - 6
M1 - 064018
ER -