How much work can be extracted from a radiation reservoir?

Radiation reservoirs are more complex than heat reservoirs. They depend on the intensive thermodynamic parameters (such as temperature, pressure, and chemical potential) as well as on other state parameters (such as the geometric factors). The paper refers to work extraction from a high temperature...

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Published in:Physica A 2014-09, Vol.410, p.110-119
Main Author: Badescu, Viorel
Format: Article
Language:English
Subjects:
Blackbody
Conversion
Endoreversible operation
Extraction
Pumps
Radiation reservoirs
Reservoirs
Reversible operation
Statistical mechanics
Thermodynamics
Upper bound efficiency
Upper bounds
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description Radiation reservoirs are more complex than heat reservoirs. They depend on the intensive thermodynamic parameters (such as temperature, pressure, and chemical potential) as well as on other state parameters (such as the geometric factors). The paper refers to work extraction from a high temperature radiation reservoir (the pump), the sink being a heat reservoir, respectively a radiation reservoir. The simplest case of radiation reservoir (i.e. blackbody isotropic radiation) is considered. Reversible and endoreversible conversion is analyzed. The upper bound for reversible work extraction is not Carnot efficiency. All upper bound efficiencies obtained here depend on the pump geometric factor. •Radiation reservoirs are more complex than heat reservoirs.•Reversible and endoreversible work extraction from radiation reservoirs is analyzed.•The upper bound for reversible work extraction is not Carnot efficiency.•All upper bound efficiencies depend on the geometric factor of the radiation reservoir.
doi_str_mv 10.1016/j.physa.2014.05.024
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subjects Blackbody
Conversion
Endoreversible operation
Extraction
Pumps
Radiation reservoirs
Reservoirs
Reversible operation
Statistical mechanics
Thermodynamics
Upper bound efficiency
Upper bounds
title How much work can be extracted from a radiation reservoir?
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