期刊
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
卷 115, 期 16, 页码 E3609-E3615出版社
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1717595115
关键词
renewable energy; thermodynamic limits; outgoing thermal radiation; negative illumination
资金
- Department of Energy (DOE) Light-Material Interactions in Energy Conversion Energy Frontier Research Center [DE-SC0001293]
- DOE [DE-FG07-ER46426]
We derive the thermodynamic limits of harvesting power from the outgoing thermal radiation from the ambient to the cold outer space. The derivations are based on a duality relation between thermal engines that harvest solar radiation and those that harvest outgoing thermal radiation. In particular, we derive the ultimate limit for harvesting outgoing thermal radiation, which is analogous to the Landsberg limit for solar energy harvesting, and show that the ultimate limit far exceeds what was previously thought to be possible. As an extension of our work, we also derive the ultimate limit of efficiency of thermophotovoltaic systems.
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