publication . Article . 2018

Energy Exploitation of High-Temperature Geothermal Sources in Volcanic Areas—a Possible ORC Application in Phlegraean Fields (Southern Italy)

Angelo Algieri;
Open Access English
  • Published: 01 Mar 2018 Journal: Energies, volume 11, issue 3 (issn: 1996-1073, Copyright policy)
  • Publisher: MDPI AG
Abstract
This work aims to investigate the energy performances of small-scale Organic Rankine Cycles (ORCs) for the exploitation of high temperature geothermal sources in volcanic areas. For this purpose, a thermodynamic model has been developed, and a parametric analysis has been performed that considers subcritical and transcritical configurations, and different organic fluids (isobutane, isopentane, and R245ca). The investigation illustrates the significant effect of the temperature at the entrance of the expander on the ORC behaviour and the rise in system effectiveness when the internal heat exchange (IHE) is adopted. As a possible application, the analysis has focu...
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free text keywords: organic Rankine cycle, geothermal source, transcritical cycle, internal heat exchange, domestic application, electricity production, volcanic area, General Computer Science, lcsh:Technology, lcsh:T, Renewable energy, business.industry, business, Electricity generation, Environmental science, Geothermal gradient, Petroleum engineering, Degree Rankine, Electric power, Electrical load
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