Energiezuinig klimaat in bioteelt en gewone teelt - proef 2009

A. de Gelder, P.A. van Weel, E.M. Nederhoff

Research output: Book/ReportReportProfessional

Abstract

Energy use can be reduced by highly insulating screens. The problem with screens is that less condensation occurs at the cold glass in the greenhouse roof. The two common methods of moisture control, screen gaps and use of minimum pipe temperature, require both a lot of energy. Therefore this research looked for another method to prevent the moisture problem. In this trial is that in principle forced ventilation with preheated air from outside. Also, the heating regime changed, that no minimum pipe temperature is set. This test showed that significant energy savings through a double screen are possible and through additional measures such as no minimum pipe to set and screens only open when the sun has more power. The extra screen can longer remain closed due to good humidity control (for heating dry air requires relatively little energy). Vertical gradients were low, partly due to the almost constant flow of Aircobreeze. The lower production observed may partly be due to lower CO2 and higher night temperatures.
Original languageDutch
Place of PublicationBleiswijk
PublisherWageningen UR Glastuinbouw
Number of pages30
Publication statusPublished - 2011

Publication series

NameRapporten GTB
PublisherWageningen UR Glastuinbouw
No.1077

Keywords

  • greenhouse technology
  • energy saving
  • greenhouse horticulture
  • greenhouse vegetables
  • blinds
  • moisture
  • air conditioning
  • organic farming

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