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Emergy assessment of global renewable sources

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  • Brown, Mark T.
  • Ulgiati, Sergio

Abstract

The empower that is derived from solar, geothermal and tidal sources drives the productive processes of the geobiosphere and is responsible for developing exergy gradients (work potential) to be transformed into secondary exergy sources (wind, and chemical potential of rain water) and tertiary sources (chemical and geopotential energy of river discharges and the available energy of breaking waves). In this paper we use the geobiosphere emergy baseline (GEB) to compute transformities for secondary and tertiary renewable exergy sources. We also refine methods used to compute secondary and tertiary sources.

Suggested Citation

  • Brown, Mark T. & Ulgiati, Sergio, 2016. "Emergy assessment of global renewable sources," Ecological Modelling, Elsevier, vol. 339(C), pages 148-156.
    • Handle: RePEc:eee:ecomod:v:339:y:2016:i:c:p:148-156
    DOI: 10.1016/j.ecolmodel.2016.03.010
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    References listed on IDEAS

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    1. Campbell, Daniel E., 2016. "Emergy baseline for the Earth: A historical review of the science and a new calculation," Ecological Modelling, Elsevier, vol. 339(C), pages 96-125.
    2. Brown, Mark T. & Ulgiati, Sergio, 2016. "Assessing the global environmental sources driving the geobiosphere: A revised emergy baseline," Ecological Modelling, Elsevier, vol. 339(C), pages 126-132.
    3. Brown, Mark T. & Campbell, Daniel E. & De Vilbiss, Christopher & Ulgiati, Sergio, 2016. "The geobiosphere emergy baseline: A synthesis," Ecological Modelling, Elsevier, vol. 339(C), pages 92-95.
    4. 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.
    5. Zarbá, Lucía & Brown, Mark T., 2015. "Cycling emergy: computing emergy in trophic networks," Ecological Modelling, Elsevier, vol. 315(C), pages 37-45.
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