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 538558
Title De perfecte chrysant teelt 1-4 : energiezuinige demonstratieteelten bij Delphy Improvement Centre
Author(s) Raaphorst, M.; Zwart, Feije de; Schuddebeurs, L.; Veld, Paul de
Source Bleiswijk : Wageningen University & Research, BU Glastuinbouw (Rapport Wageningen Plant Research, Business unit Glastuinbouw WPR-752) - 46
Department(s) GTB Tuinbouw Technologie
Publication type Research report
Publication year 2018
Abstract With funding from ‘Kas als Energiebron’, ChrIP and suppliers, four chrysanthemums crops have been carried outat the Delphy Improvement Centre in 2017. These crops had the following targets:• A heat use up to 475 MJ/m2.yr.• This heat must be extracted from harvesting heat (cooling).• A CO2-use of 25 kg/m2.yr.• A yearly electricity usage for lighting of 121 kWh/m2.yr.• 5% more production than professional growers.The most important means to achieve this objective are hybrid lighting, diffuse glass with 2 AR-coatings, anextra energy screen, 8 air handling units, well pumps and a heat pump. The crops are run under the name ‘ThePerfect Chrysanthemum’ (DPC). The realised use of CO2 and heat turn out to be lower than the target. Theamount of heat (cooling) harvested is much higher and the amount of lighting is almost equal to the target.It is concluded that an investment in air handling units, heat pump and source pumps, an extra screen andLED lighting makes it technically possible to grow chrysanthemums without gas, if an alternative is found fordisinfection by steaming.
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