Details
| Original language | English |
|---|---|
| Pages (from-to) | 115-122 |
| Number of pages | 8 |
| Journal | International Journal of Energy Technology and Policy |
| Volume | 3 |
| Issue number | 1-2 |
| Early online date | 5 Apr 2005 |
| Publication status | Published - 2005 |
| Externally published | Yes |
Abstract
Solar radiation reaching the ground is accompanied with radiation entropy. When the entropy production rate within any solar energy conversion device is to be calculated, the incoming radiation entropy flux has to be known. In this contribution first it is shown how the radiation entropy flux arriving on earth is to be calculated. Secondly, the interaction between the incoming radiation and the receiver surface is identified as one entropy production source. An approach for a reversible radiation conversion device is proposed. Maximum conversion efficiencies for non-concentrating solar energy converters are found to be between 50 - 77% of the incoming radiation energy, depending on atmospheric conditions.
Keywords
- Energy conversion, Radiation entropy, Solar energy, Solar exergy
ASJC Scopus subject areas
- Social Sciences(all)
- Geography, Planning and Development
- Energy(all)
- Fuel Technology
- Energy(all)
- Energy Engineering and Power Technology
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In: International Journal of Energy Technology and Policy, Vol. 3, No. 1-2, 2005, p. 115-122.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Exergy of solar radiation
AU - Kabelac, Stephan
N1 - Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2005
Y1 - 2005
N2 - Solar radiation reaching the ground is accompanied with radiation entropy. When the entropy production rate within any solar energy conversion device is to be calculated, the incoming radiation entropy flux has to be known. In this contribution first it is shown how the radiation entropy flux arriving on earth is to be calculated. Secondly, the interaction between the incoming radiation and the receiver surface is identified as one entropy production source. An approach for a reversible radiation conversion device is proposed. Maximum conversion efficiencies for non-concentrating solar energy converters are found to be between 50 - 77% of the incoming radiation energy, depending on atmospheric conditions.
AB - Solar radiation reaching the ground is accompanied with radiation entropy. When the entropy production rate within any solar energy conversion device is to be calculated, the incoming radiation entropy flux has to be known. In this contribution first it is shown how the radiation entropy flux arriving on earth is to be calculated. Secondly, the interaction between the incoming radiation and the receiver surface is identified as one entropy production source. An approach for a reversible radiation conversion device is proposed. Maximum conversion efficiencies for non-concentrating solar energy converters are found to be between 50 - 77% of the incoming radiation energy, depending on atmospheric conditions.
KW - Energy conversion
KW - Radiation entropy
KW - Solar energy
KW - Solar exergy
UR - http://www.scopus.com/inward/record.url?scp=18344365760&partnerID=8YFLogxK
U2 - 10.1504/IJETP.2005.006743
DO - 10.1504/IJETP.2005.006743
M3 - Article
AN - SCOPUS:18344365760
VL - 3
SP - 115
EP - 122
JO - International Journal of Energy Technology and Policy
JF - International Journal of Energy Technology and Policy
SN - 1472-8923
IS - 1-2
ER -