Details
| Original language | English |
|---|---|
| Pages (from-to) | 717-735 |
| Number of pages | 19 |
| Journal | Entropy |
| Volume | 14 |
| Issue number | 4 |
| Early online date | 11 Apr 2012 |
| Publication status | Published - Apr 2012 |
Abstract
The entropy calculation for radiation fluxes is reviewed and applied to simple radiation-surface interactions. A plate interacting with radiation from a hot object in the zenith of the hemisphere surrounded by a colder atmosphere is analyzed in detail. The entropy generation rate upon absorption and reflection of the incoming radiation is calculated and discussed. The plate is adiabatic in a first version (thermal equilibrium), then its temperature is fixed by allowing a heat flux to or from the plate. This analysis prepares the way towards an entropy generation minimization analysis of more complex radiation settings.
Keywords
- Absorption, Entropy production, Reflection, Thermal radiation
ASJC Scopus subject areas
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In: Entropy, Vol. 14, No. 4, 04.2012, p. 717-735.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Entropy generation during the interaction of thermal radiation with a surface
AU - Kabelac, Stephan
AU - Conrad, Rainer
N1 - Copyright: Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2012/4
Y1 - 2012/4
N2 - The entropy calculation for radiation fluxes is reviewed and applied to simple radiation-surface interactions. A plate interacting with radiation from a hot object in the zenith of the hemisphere surrounded by a colder atmosphere is analyzed in detail. The entropy generation rate upon absorption and reflection of the incoming radiation is calculated and discussed. The plate is adiabatic in a first version (thermal equilibrium), then its temperature is fixed by allowing a heat flux to or from the plate. This analysis prepares the way towards an entropy generation minimization analysis of more complex radiation settings.
AB - The entropy calculation for radiation fluxes is reviewed and applied to simple radiation-surface interactions. A plate interacting with radiation from a hot object in the zenith of the hemisphere surrounded by a colder atmosphere is analyzed in detail. The entropy generation rate upon absorption and reflection of the incoming radiation is calculated and discussed. The plate is adiabatic in a first version (thermal equilibrium), then its temperature is fixed by allowing a heat flux to or from the plate. This analysis prepares the way towards an entropy generation minimization analysis of more complex radiation settings.
KW - Absorption
KW - Entropy production
KW - Reflection
KW - Thermal radiation
UR - http://www.scopus.com/inward/record.url?scp=84860693802&partnerID=8YFLogxK
U2 - 10.3390/e14040717
DO - 10.3390/e14040717
M3 - Article
AN - SCOPUS:84860693802
VL - 14
SP - 717
EP - 735
JO - Entropy
JF - Entropy
SN - 1099-4300
IS - 4
ER -