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Greenhouses in The Netherlands contribute significantly to the total energy consumption of the country. One of the leading Dutch philosophies for greenhouses is “the new growing” which reduce energy and improve health, quality and growing of plants: a greenhouse with an adaptive kind of comfort with a free running climate. Heating is necessary to prevent cold stress of plants or condensation. The relative humidity should be just low enough to prevent heat stress of plants or development of fungus. Ground ducts can reduce heating and cooling of air, reverse stratification, improve circulation and dehumidification. These ducts are heated up during the day by the air from the top of the green house, above the screens. In the thermal buffer of the ground solar heat is accumulated and released in the cold early morning. After measurements in a greenhouse with ground ducts, a calculation-model in Matlab is developed and validated. The diurnal temperature-swing in a ground duct is evaluated with the mathematic model of Hollmüller. Via the Matlab-model the energy savings and the effect of the amount and size of ground ducts can be predicted. The system has proved to create better developed tomatoes with almost no diseases anymore.
Original languageEnglish
Title of host publicationDesign to Thrive: Proceedings of the 33rd PLEA International Conference
EditorsLuisa Brotas, Susan Roaf, Fergus Nicol
PublisherNetwork for Comfort and Energy Use in Buildings (NCEUB)
Pages4397-4404
VolumeIII
ISBN (Electronic)978-0-9928957-5-4
Publication statusPublished - 2017
EventPLEA 2017: 33rd International Conference "Design to Thrive" - Edinburgh, United Kingdom
Duration: 3 Jul 20175 Jul 2017
https://plea2017.net/

Conference

ConferencePLEA 2017: 33rd International Conference "Design to Thrive"
CountryUnited Kingdom
CityEdinburgh
Period3/07/175/07/17
Internet address

    Research areas

  • greenhouse, ground duct

ID: 51423983