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.

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Record number 527652
Title De Uitstralingsmonitor
Author(s) Zwart, Feije de; Baeza, Esteban; Breugel, Bram van; Mohammadkhani, Vida; Janssen, Hans
Source Bleiswijk : Wageningen University & Research, BU Glastuinbouw (Rapport GTB 1449) - 50
Department(s) WUR GTB Tuinbouw Technologie
Publication type Research report
Publication year 2017
Abstract Intensive use of screens is an important part of what’s called the ‘Next Generation Greenhouse Cultivation’. It offers great potential for energy saving and gives a much more homogeneous temperature distribution in the crop. Especially the temperature at the top of the crop will be closer to the air temperature, and therefore the risk of condensation will decrease. To illustrate these effects, a calculation model has been developed that shows the effect of screens on the temperature distribution in the crop. The work on this model has been funded by the horticultural supply industry, united in the ‘Club van 100’, and through the research program ‘Kas Als Energiebron’. This research program is a cooperation between the Ministry of Economic Affairs and LTO-Glaskracht Nederland. The vertical temperature distribution in the crop is strongly influenced by the longwave radiation and therefore model has been named the ‘Radiation Monitor’. Comparison of the calculated values with measurements in a greenhouse shows that the model accurately calculates the net radiation from the crop and nicely predicts the vertical temperature distribution. Especially the effect of the screen application is convincingly simulated.
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