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 489197
Title Monitoring energiebesparing en teeltervaringen bij energie-innovaties
Author(s) Zwart, H.F. de; Raaphorst, M.G.M.; Weel, P.A. van; Speetjens, S.L.; Janssen, Hans; Verkerke, W.
Source Bleiswijk : Wageningen UR Glastuinbouw (Rapport GTB 1357) - 84
Department(s) GTB Tuinbouw Technologie
GTB Teelt & Gewasfysiologie
Publication type Research report
Publication year 2015
Keyword(s) glastuinbouw - energiebesparing - klimaatregeling - teeltsystemen - luchtstroming - thermische schermen - vergelijkend onderzoek - greenhouse horticulture - energy saving - air conditioning - cropping systems - air flow - thermal screens - comparative research
Categories Energy / Cropping Systems
Abstract Air circulation systems that allow controlled exchange with outside air are an important part of The New Cultivation growing (Het Nieuwe Telen in Dutch). Control over the amount of dehumidification and the air distribution in the crop provides growers the confidence needed to realize energy savings through intensifying screen use, reduced minimum pipe temperatures acceptance of a higher humidity in the greenhouse. In this project 10 horticultural companies that have invested in such installations were monitored and their energy consumption was compared to that of a carefully chosen reference. The air circulation systems are found to provide a 10 to 20% potential of saving on heating energy. This potential, however, is not always (immediately) realized. Some companies show a clear learning curve. First, confidence in the system has to be gained before the actual source of the energy savings, which is the increased application of screens and more humid growing conditions, can be fully exploited. There are also companies that intensified their production system together with the purchase of the new air circulation systems. The Intensification in these cases meant an increased application of artificial illumination and/or a lower humidity. At these companies, the air circulation and dehumidification system will not lead to energy savings. The diversity of companies that were present in this project provides a good picture of the potential of various air circulation and dehumidification systems, as well as the developments that tend to increase the energy consumption of horticulture.
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