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Emergy as a function of exergy

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  • Bastianoni, S.
  • Facchini, A.
  • Susani, L.
  • Tiezzi, E.

Abstract

This paper aims to clarify some aspects of the discussion between “emergists” and “exergists”. First, we address the problem of the differences between energy-based emergy and exergy-based emergy: we show that the two are proportional, having the exergetic equivalent of solar energy as scale factor. In the second part, we show that emergy and transformity can be written as a function of exergy alone, in particular of “partial” efficiencies of the processes involved in a production system, from solar energy to the final product.

Suggested Citation

  • Bastianoni, S. & Facchini, A. & Susani, L. & Tiezzi, E., 2007. "Emergy as a function of exergy," Energy, Elsevier, vol. 32(7), pages 1158-1162.
    • Handle: RePEc:eee:energy:v:32:y:2007:i:7:p:1158-1162
    DOI: 10.1016/j.energy.2006.08.009
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    References listed on IDEAS

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    1. Amaral, Luís P. & Martins, Nélson & Gouveia, Joaquim B., 2016. "A review of emergy theory, its application and latest developments," Renewable and Sustainable Energy Reviews, Elsevier, vol. 54(C), pages 882-888.
    2. Deymi-Dashtebayaz, Mahdi & Norani, Marziye, 2021. "Sustainability assessment and emergy analysis of employing the CCHP system under two different scenarios in a data center," Renewable and Sustainable Energy Reviews, Elsevier, vol. 150(C).
    3. Iribarren, Diego & Vázquez-Rowe, Ian & Rugani, Benedetto & Benetto, Enrico, 2014. "On the feasibility of using emergy analysis as a source of benchmarking criteria through data envelopment analysis: A case study for wind energy," Energy, Elsevier, vol. 67(C), pages 527-537.
    4. Hoang, Viet-Ngu & Alauddin, Mohammad, 2009. "Analysis of Agricultural Sustainability: A Review of Exergy Methodologies and Their Application in OECD," MPRA Paper 90406, University Library of Munich, Germany, revised 15 Mar 2010.
    5. Grande, U. & Piernik, A. & Nienartowicz, A. & Buonocore, E. & Franzese, P.P., 2023. "Measuring natural capital value and ecological complexity of lake ecosystems," Ecological Modelling, Elsevier, vol. 482(C).
    6. Brown, Mark T. & Ulgiati, Sergio, 2010. "Updated evaluation of exergy and emergy driving the geobiosphere: A review and refinement of the emergy baseline," Ecological Modelling, Elsevier, vol. 221(20), pages 2501-2508.
    7. Khoshgoftar Manesh, Mohammad Hasan & Hajizadeh Aghdam, Meysam & Vazini Modabber, Hossein & Ghasemi, Amir & Khajeh Talkhoncheh, Mahdi, 2022. "Techno-economic, environmental and emergy analysis and optimization of integrated solar parabolic trough collector and multi effect distillation systems with a combined cycle power plant," Energy, Elsevier, vol. 240(C).
    8. Liu, Jin’e & Lin, Bin-Le & Sagisaka, Masayuki, 2012. "Sustainability assessment of bioethanol and petroleum fuel production in Japan based on emergy analysis," Energy Policy, Elsevier, vol. 44(C), pages 23-33.
    9. Li, Linjun & Lu, Hongfang & Tilley, David R. & Qiu, Guoyu, 2015. "Reprint of “Effect of time scale on accounting for renewable emergy in ecosystems located in humid and arid climates”," Ecological Modelling, Elsevier, vol. 315(C), pages 88-95.
    10. Jiang, M.M. & Chen, B., 2011. "Integrated urban ecosystem evaluation and modeling based on embodied cosmic exergy," Ecological Modelling, Elsevier, vol. 222(13), pages 2149-2165.
    11. Yang, Z.F. & Jiang, M.M. & Chen, B. & Zhou, J.B. & Chen, G.Q. & Li, S.C., 2010. "Solar emergy evaluation for Chinese economy," Energy Policy, Elsevier, vol. 38(2), pages 875-886, February.
    12. Bastianoni, Simone & Morandi, Fabiana & Flaminio, Tommaso & Pulselli, Riccardo M. & Tiezzi, Elisa B.P., 2011. "Emergy and emergy algebra explained by means of ingenuous set theory," Ecological Modelling, Elsevier, vol. 222(16), pages 2903-2907.
    13. Zhang, Xiao Hong & Deng, ShiHuai & Jiang, WenJu & Zhang, YanZong & Peng, Hong & Li, Li & Yang, Gang & Li, YuanWei, 2010. "Emergy evaluation of the sustainability of two industrial systems based on wastes exchanges," Resources, Conservation & Recycling, Elsevier, vol. 55(2), pages 182-195.
    14. Martin N. Nwodo & Chimay J. Anumba, 2020. "Exergetic Life Cycle Assessment: A Review," Energies, MDPI, vol. 13(11), pages 1-19, May.
    15. Ye, Sufen & Zhang, Luoping & Feng, Huan, 2020. "Ecosystem intrinsic value and its evaluation," Ecological Modelling, Elsevier, vol. 430(C).
    16. Martin Nwodo & Chimay J. Anumba, 2021. "Exergy-Based Life Cycle Assessment of Buildings: Case Studies," Sustainability, MDPI, vol. 13(21), pages 1-15, October.
    17. Sciubba, Enrico, 2010. "On the Second-Law inconsistency of Emergy Analysis," Energy, Elsevier, vol. 35(9), pages 3696-3706.
    18. Li, Linjun & Lu, Hongfang & Tilley, David R. & Qiu, Guoyu, 2014. "Effect of time scale on accounting for renewable emergy in ecosystems located in humid and arid climates," Ecological Modelling, Elsevier, vol. 287(C), pages 1-8.
    19. Marvuglia, Antonino & Benetto, Enrico & Rios, Gordon & Rugani, Benedetto, 2013. "SCALE: Software for CALculating Emergy based on life cycle inventories," Ecological Modelling, Elsevier, vol. 248(C), pages 80-91.
    20. Ling Yang & Lin Wang, 2022. "An Improved Emergy Analysis of the Environmental and Economic Benefits of Reclaimed Water Reuse System," Sustainability, MDPI, vol. 14(9), pages 1-12, April.

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