Greenhouse crops are one of the most innovatory examples of modern agriculture and it is envisaged for them to expand more and more in future, especially in areas with unfavourable climatic conditions. They are one of the highest man-made forms of agricultural activity because of the intense technological and bio-agronomic inputs in confined portions of the agricultural environment (Scarascia Mugnozza, 1995). Energy consumption is one of the main cost factors in commercial greenhouses since high amounts of energy are used for greenhouse climate control in order to obtain good yields and high quality (Korner et al., 2004). The conventional greenhouse heating systems supplied from fossil fuel have a strong negative impact on agro-ecosystems (Scarascia Mugnozza, 1992). Energy necessary to heat 1 m2 of greenhouse area ranges from 500 to 2700 yr-1, depending on the site, the cultivated plants, the greenhouse MJm-2 covering and the level of climate control. The use of fossil fuel for greenhouse heating has a major impact on the cost and environmental sustainability of vegetable production. The recent raise of prices of energy produced from fossil fuels has further increased production costs of horticultural protected cultivations. Many efforts have been made to reduce greenhouse energy consumption in greenhouse climate control, while interest has recently been aroused in alternative energy sources, which include renewable energy sources (Vox et al., 2006). Renewable energy sources are particularly appropriate to ensure optimal microclimatic conditions for the growth of greenhouse crops and provide a major impetus to the ecological conversion of greenhouse heating systems (Ozgener, 2005; Scarascia Mugnozza, 2009). In this context, the greenhouse heating with geothermal heat pump result to be very convenient in terms of environmental and economic (Ozgener, 2010; Adaro et al., 1999). Aim of the research was to assess the potential of the system in terms of energy production, efficiency and economy.
Photovoltaic and geothermal integration system for greenhouse heating: an experimental study / SCARASCIA MUGNOZZA, Giacomo; Pascuzzi, Simone; Anifantis, ALEXANDROS SOTIRIOS; Verdiani, G.. - STAMPA. - 1:(2011), pp. 135-138. (Intervento presentato al convegno V International Scientific Symposiun «Farm Machinery and process Management i Sustainable Agricolture» tenutosi a Lublin (Polonia) nel 23-24/11/2011).
Photovoltaic and geothermal integration system for greenhouse heating: an experimental study
SCARASCIA MUGNOZZA, Giacomo;PASCUZZI, Simone;
2011-01-01
Abstract
Greenhouse crops are one of the most innovatory examples of modern agriculture and it is envisaged for them to expand more and more in future, especially in areas with unfavourable climatic conditions. They are one of the highest man-made forms of agricultural activity because of the intense technological and bio-agronomic inputs in confined portions of the agricultural environment (Scarascia Mugnozza, 1995). Energy consumption is one of the main cost factors in commercial greenhouses since high amounts of energy are used for greenhouse climate control in order to obtain good yields and high quality (Korner et al., 2004). The conventional greenhouse heating systems supplied from fossil fuel have a strong negative impact on agro-ecosystems (Scarascia Mugnozza, 1992). Energy necessary to heat 1 m2 of greenhouse area ranges from 500 to 2700 yr-1, depending on the site, the cultivated plants, the greenhouse MJm-2 covering and the level of climate control. The use of fossil fuel for greenhouse heating has a major impact on the cost and environmental sustainability of vegetable production. The recent raise of prices of energy produced from fossil fuels has further increased production costs of horticultural protected cultivations. Many efforts have been made to reduce greenhouse energy consumption in greenhouse climate control, while interest has recently been aroused in alternative energy sources, which include renewable energy sources (Vox et al., 2006). Renewable energy sources are particularly appropriate to ensure optimal microclimatic conditions for the growth of greenhouse crops and provide a major impetus to the ecological conversion of greenhouse heating systems (Ozgener, 2005; Scarascia Mugnozza, 2009). In this context, the greenhouse heating with geothermal heat pump result to be very convenient in terms of environmental and economic (Ozgener, 2010; Adaro et al., 1999). Aim of the research was to assess the potential of the system in terms of energy production, efficiency and economy.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
