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Energy demand hourly simulations and energy saving strategies in greenhouses for the Mediterranean climate
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.
2017 (English)In: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 796, no 1, 012027Article in journal (Refereed) Published
Abstract [en]

This research has been devoted to the selection of the most favourable plant solutions for ventilation, heating and cooling, thermo-hygrometric control of a greenhouse, in the framework of the energy saving and the environmental protection. The identified plant solutions include shading of glazing surfaces, natural ventilation by means of controlled opening windows, forced convection of external air and forced convection of air treated by the HVAC system for both heating and cooling. The selected solution combines HVAC system to a Ground Coupled Heat Pump (GCHP), which is an innovative renewable technology applied to greenhouse buildings. The energy demand and thermal loads of the greenhouse to fulfil the requested internal design conditions have been evaluated through an hourly numerical simulation, using the Energy Plus (E-plus) software. The overall heat balance of the greenhouse also includes the latent heat exchange due to crop evapotranspiration, accounted through an original iterative calculation procedure that combines the E-plus dynamic simulations and the FAO Penman-Monteith method. The obtained hourly thermal loads have been used to size the borehole field for the geothermal heat pump by using a dedicated GCHP hourly simulation tool.

Place, publisher, year, edition, pages
Institute of Physics Publishing (IOPP), 2017. Vol. 796, no 1, 012027
Keyword [en]
Air conditioning, Climate control, Computer software, Energy conservation, Energy management, Forced convection, Geothermal energy, Greenhouses, Heat pump systems, Heat transfer, Iterative methods, Thermal load, Ventilation, Crop evapotranspiration, Energy-saving strategies, Fao penman monteiths, Ground-coupled heat pump, Iterative calculation, Latent heat exchanges, Mediterranean climates, Renewable technology, Geothermal heat pumps
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-208024DOI: 10.1088/1742-6596/796/1/012027ISI: 000403941600027Scopus ID: 2-s2.0-85016227556OAI: oai:DiVA.org:kth-208024DiVA: diva2:1105248
Conference
4 July 2016 through 6 July 2016
Note

QC 20170602

Available from: 2017-06-02 Created: 2017-06-02 Last updated: 2017-11-10Bibliographically approved

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CiteExportLink to record
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  • apa
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  • de-DE
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Output format
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