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Odum–Tennenbaum–Brown calculus vs emergy and co-emergy analysis

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  • Le Corre, O.
  • Truffet, L.
  • Lahlou, C.

Abstract

In a recent paper Tennenbaum introduced a new method of calculating emergy that requires only ordinary (i.e. linear) algebra. We prove on a simple example with one feedback and one split that ordinary algebra as developed by Tennenbaum in his paper is not sufficient to tackle the problem of emergy analysis. In particular, we point out the problem of enumerating pathways which are relevant for emergy analysis, i.e. which avoid the double counting problem of feedbacks. Hence, the emergy co-emergy analysis cannot work at least for energy system diagram with splits and feedbacks. Le Corre and Truffet have already proved that the emergy path-finding problem deals with idempotent (thus non-linear) algebra.

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  • Le Corre, O. & Truffet, L. & Lahlou, C., 2015. "Odum–Tennenbaum–Brown calculus vs emergy and co-emergy analysis," Ecological Modelling, Elsevier, vol. 302(C), pages 9-12.
    • Handle: RePEc:eee:ecomod:v:302:y:2015:i:c:p:9-12
    DOI: 10.1016/j.ecolmodel.2015.01.021
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    References listed on IDEAS

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    1. Le Corre, O. & Truffet, L., 2012. "Exact computation of emergy based on a mathematical reinterpretation of the rules of emergy algebra," Ecological Modelling, Elsevier, vol. 230(C), pages 101-113.
    2. 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.
    3. Brown, M. T. & Herendeen, R. A., 1996. "Embodied energy analysis and EMERGY analysis: a comparative view," Ecological Economics, Elsevier, vol. 19(3), pages 219-235, December.
    4. Li, Linjun & Lu, Hongfang & Campbell, Daniel E. & Ren, Hai, 2010. "Emergy algebra: Improving matrix methods for calculating transformities," Ecological Modelling, Elsevier, vol. 221(3), pages 411-422.
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    Cited by:

    1. Tennenbaum, Stephen E., 2015. "Odum–Tennenbaum–Brown calculus vs emergy and co-emergy analysis: A reply," Ecological Modelling, Elsevier, vol. 313(C), pages 333-340.

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