Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 408098
Title Energiezuinig klimaat in bioteelt en gewone teelt - proef 2009
Author(s) Gelder, A. de; Weel, P.A. van; Nederhoff, E.M.
Source Bleiswijk : Wageningen UR Glastuinbouw (Rapporten GTB 1077) - 30
Department(s) WUR GTB Gewasfysiologie Management en Model
WUR GTB Tuinbouw Technologie
Wageningen UR Greenhouse Horticulture
Publication type Research report
Publication year 2011
Keyword(s) kastechniek - energiebesparing - glastuinbouw - glasgroenten - schermen - vocht - klimaatregeling - biologische landbouw - greenhouse technology - energy saving - greenhouse horticulture - greenhouse vegetables - blinds - moisture - air conditioning - organic farming
Categories Greenhouse Technology
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.
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