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
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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Energy Research
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Article . 2018
Article . 2018
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52 references, page 1 of 4

Optimization theory. Appl. Energy 2017, 202, 228-237. [CrossRef]

Qiu, G. Selection of working fluids for micro-CHP systems with ORC. Renew. Energy 2012, 48, 565-570.

micro-CHP for domestic applications. Fuel 2012, 96, 374-382. [CrossRef]

United Nations. Kyoto Protocol to the United Nations Framework Convention on Climate Change. 1998.

Available online: (accessed on 3 February 2018).

5. United Nations. Paris Agreement. 2015. Available online: php (accessed on 3 February 2018).

6. Hong, Y.-Y.; Lai, Y.-M.; Chang, Y.-R.; Lee, Y.-D.; Liu, P.-W. Optimizing Capacities of Distributed Generation and Energy Storage in a Small Autonomous Power System Considering Uncertainty in Renewables. Energies 2015, 8, 2473-2492. [CrossRef]

7. International Energy Agency. Available online: (accessed on 3 February 2018).

8. Eurostat. Available online: (accessed on 3 February 2018).

9. The European Parliament and the Council of the European Union. Directive 2009/28/EC of the European Parliament and of the Council. 2009. Available online: (accessed on 3 February 2018).

10. Italian Ministry of Economic Development. Piano di Azione Nazionale per le Energie Rinnovabili (Direttiva 2009/28/CE). 2010. Available online: (accessed on 3 February 2018).

11. European Commission-Joint Research Center. Available online: (accessed on 3 February 2018).

12. Tomasini-Montenegro, C.; Santoyo-Castelazo, E.; Gujba, H.; Romero, R.J.; Santoyo, E. Life cycle assessment of geothermal power generation technologies: An updated review. Appl. Therm. Eng. 2017, 114, 1119-1136. [CrossRef]

13. Özkaraca, O.; Keçebas¸, P.; Demircan, C.; Keçebas¸, A. Thermodynamic Optimization of a Geothermal-Based Organic Rankine Cycle System Using an Artificial Bee Colony Algorithm. Energies 2017, 10, 1691. [CrossRef] [OpenAIRE]

14. Terna. Available online: (accessed on 3 February 2018).

52 references, page 1 of 4
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