Use of low-enthalpy geothermal resources for greenhouse heating: an experimental study
Giacomo Scarascia Mugnozza
„Aldo Moro” University of Bari, ItalySimone Pascuzzi
„Aldo Moro” University of Bari, ItalyAlexandros Sotirios Anifantis
„Aldo Moro” University of Bari, ItalyGiuseppe Verdiani
„Aldo Moro” University of Bari, ItalyAbstract
The energy and economic performance analysis of integrated photovoltaic and geothermal systems, for greenhouse heating, was investigated in a experimental study developed at the University of Bari, Southern Italy. A 7.2 kW geothermal heat pump combined with a 120 m vertical double U-bend ground heat exchanger was installed in order to supply the thermal energy demand of 48 m2 single plastic skin greenhouse. Heat extraction energy from the soil, air temperature above the heated cultivated surface, growing media temperature, water temperature inside the heating system were measured and recorded continuously by a system composed of sensors and data logger. Results of the experiment showed that the use of geothermal sources integrated with photovoltaic panels can supply of totally heat energy demand of greenhouse with zero air emission and economy saving of 40% compared to the traditional heating systems.
Keywords:
greenhouse heating, renewable energy sources, heat pump, geothermal energyReferences
Adaro J.A., Galimberti P.D., Lema A.I., Fasulo A., Barral J.R., 1999. Geothermal contribution to greenhouse heating. Applied Energy 64, 241–249.
Campiotti C., Bibbiani C., Dondi F., Viola C., 2010. Efficienza energetica e fonti rinnovabili per l’agricoltura protetta. Ambiente, Risorse, Salute n. 126.
ENEA, 2009. Energia rinnovabile in agricoltura. Rapporto tecnico.
ENEA, 2010. Ricerca e innovazione per un futuro low – carbon. Le fonti rinnovabili.
EurObserv’ER 2009. Barometro delle pompe di calore.
European Directive 2009/28/EC.
Korner O., Bakker M.J. and Heuvelink E., 2004. Daily temperature integration: a simulation study to quantify energy Consumption. Biosyst. Eng. 87 (3), 67–77.
Lund J.W., Freeston D.H., Boyd T.L., 2005. Direct application of geothermal energy: 2005 worldwide review. Geothermics, 34, 691–727.
Ozgener O., Hepbasli A., 2005. Performance analysis of a solar assisted ground-source heat pump system for greenhouse heating: an experimental study. Building and Environment 40, 1040–50.
Ozgener O., 2010. Use of solar assisted geothermal heat pump and small wind turbine systems for heating agricultural and residential buildings. Energy 35, 262–268 40, 1040–50.
Rybach L., Eugster W.J., 2010. Sustainability aspects of geothermal heat pump operation, with experience from Switzerland. Geothermics 39, 365–369.
Scarascia Mugnozza G., 1992. Soluzioni costruttive e impiantistiche serricole a basso impatto ambientale. Colture Protette 21(11), 121–125.
Scarascia Mugnozza G., 1995. Sustainable greenhouse production in mediterranean climate: a case study in Italy. MEDIT 6 (4), 48–53.
Scarascia Mugnozza G., 1997. Tecniche e materiali innovativi nelle colture senza suolo per una serricoltura sostenibile. Atti del VI Convegno Nazionale di Ingegneria Agraria 27–39.
Scarascia Mugnozza G., Anifantis A., 2009. Dal fotovoltaico al termico. Colture Protette 6, 40–43.
Scarascia Mugnozza G., Pascuzzi S., Anifantis A., Verdiani G., 2011a. Photovoltaic and geo thermal integration system for greenhouse heating: an experimental study. Proceedings of V International Scientific Symposium „Farm Machinery and Process Management in Sustainable Agriculture”, Lublin.
Scarascia Mugnozza G., Sica C., Russo G., 2011b. Plastic materials in European agriculture: actual use and perspectives. J. Agric. Eng., 3, 15–28.
Tinti, 2008. Geotermia per la clumatizzazione. Dario Flaccovio Editore.
Vox G., Scarascia Mugnozza G., Schettini E., 2006. Photovoltaic solar cells and wind turbine for greenhouse climate control in Mediterranean areas. International Conference of Agricultural Engineering, AgEng2006 Bonn, Germany, 3–6 September 2006.
„Aldo Moro” University of Bari, Italy
„Aldo Moro” University of Bari, Italy
„Aldo Moro” University of Bari, Italy
„Aldo Moro” University of Bari, Italy
License
Articles are made available under the CC BY-NC-ND 4.0 (recognition by authorship, non-commercial use, no dependent works).
The author signs a statement on the originality of the work and the contribution of individuals.
Submission of the paper implies that it has not been published previously, that it is not under consideration for publication elsewhere.
