The Exergy Cost Theory Revisited
This paper reviews the fundamentals of the Exergy Cost Theory, an energy cost accounting methodology to evaluate the physical costs of products of energy systems and their associated waste. Besides, a mathematical and computationally approach is presented, which will allow the practitioner to carry...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-03-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/14/6/1594 |
| _version_ | 1797541494280683520 |
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| author | César Torres Antonio Valero |
| author_facet | César Torres Antonio Valero |
| author_sort | César Torres |
| collection | DOAJ |
| description | This paper reviews the fundamentals of the Exergy Cost Theory, an energy cost accounting methodology to evaluate the physical costs of products of energy systems and their associated waste. Besides, a mathematical and computationally approach is presented, which will allow the practitioner to carry out studies on production systems regardless of their structural complexity. The exergy cost theory was proposed in 1986 by Valero et al. in their “General theory of exergy savings”. It has been recognized as a powerful tool in the analysis of energy systems and has been applied to the evaluation of energy saving alternatives, local optimisation, thermoeconomic diagnosis, or industrial symbiosis. The waste cost formation process is presented from a thermodynamic perspective rather than the economist’s approach. It is proposed to consider waste as external irreversibilities occurring in plant processes. A new concept, called irreversibility carrier, is introduced, which will allow the identification of the origin, transfer, partial recovery, and disposal of waste. |
| first_indexed | 2024-03-10T13:16:51Z |
| format | Article |
| id | doaj.art-d7321fb4e0714837832422c5f311dbfd |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T13:16:51Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-d7321fb4e0714837832422c5f311dbfd2023-11-21T10:20:24ZengMDPI AGEnergies1996-10732021-03-01146159410.3390/en14061594The Exergy Cost Theory RevisitedCésar Torres0Antonio Valero1CIRCE Institute, Universidad de Zaragoza, 50018 Zaragoza, SpainCIRCE Institute, Universidad de Zaragoza, 50018 Zaragoza, SpainThis paper reviews the fundamentals of the Exergy Cost Theory, an energy cost accounting methodology to evaluate the physical costs of products of energy systems and their associated waste. Besides, a mathematical and computationally approach is presented, which will allow the practitioner to carry out studies on production systems regardless of their structural complexity. The exergy cost theory was proposed in 1986 by Valero et al. in their “General theory of exergy savings”. It has been recognized as a powerful tool in the analysis of energy systems and has been applied to the evaluation of energy saving alternatives, local optimisation, thermoeconomic diagnosis, or industrial symbiosis. The waste cost formation process is presented from a thermodynamic perspective rather than the economist’s approach. It is proposed to consider waste as external irreversibilities occurring in plant processes. A new concept, called irreversibility carrier, is introduced, which will allow the identification of the origin, transfer, partial recovery, and disposal of waste.https://www.mdpi.com/1996-1073/14/6/1594thermoeconomicsexergy cost theorywaste costing assessmentlineal productive models |
| spellingShingle | César Torres Antonio Valero The Exergy Cost Theory Revisited Energies thermoeconomics exergy cost theory waste costing assessment lineal productive models |
| title | The Exergy Cost Theory Revisited |
| title_full | The Exergy Cost Theory Revisited |
| title_fullStr | The Exergy Cost Theory Revisited |
| title_full_unstemmed | The Exergy Cost Theory Revisited |
| title_short | The Exergy Cost Theory Revisited |
| title_sort | exergy cost theory revisited |
| topic | thermoeconomics exergy cost theory waste costing assessment lineal productive models |
| url | https://www.mdpi.com/1996-1073/14/6/1594 |
| work_keys_str_mv | AT cesartorres theexergycosttheoryrevisited AT antoniovalero theexergycosttheoryrevisited AT cesartorres exergycosttheoryrevisited AT antoniovalero exergycosttheoryrevisited |