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Harvesting renewable energy from Earth's mid-infrared emissions.

ABSTRACT: It is possible to harvest energy from Earth's thermal infrared emission into outer space. We calculate the thermodynamic limit for the amount of power available, and as a case study, we plot how this limit varies daily and seasonally in a location in Oklahoma. We discuss two possible ways to make such an emissive energy harvester (EEH): A thermal EEH (analogous to solar thermal power generation) and an optoelectronic EEH (analogous to photovoltaic power generation). For the latter, we propose using an infrared-frequency rectifying antenna, and we discuss its operating principles, efficiency limits, system design considerations, and possible technological implementations.

SUBMITTER: Byrnes SJ

PROVIDER: S-EPMC3964088 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature

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Harvesting renewable energy from Earth's mid-infrared emissions.

Byrnes Steven J SJ Blanchard Romain R Capasso Federico F

Proceedings of the National Academy of Sciences of the United States of America 20140303 11

It is possible to harvest energy from Earth's thermal infrared emission into outer space. We calculate the thermodynamic limit for the amount of power available, and as a case study, we plot how this limit varies daily and seasonally in a location in Oklahoma. We discuss two possible ways to make such an emissive energy harvester (EEH): A thermal EEH (analogous to solar thermal power generation) and an optoelectronic EEH (analogous to photovoltaic power generation). For the latter, we propose us ...[more]

PMID: 24591604

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