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 352456
Title Greenhouse with an Integrated NIR Filter and a Solar Cooling System
Author(s) Sonneveld, P.J.; Swinkels, G.L.A.M.; Kempkes, F.L.K.; Campen, J.B.; Bot, G.P.A.
Source In: Proceedings of the International Symposium on Greenhouse Cooling, Leuven, 24-4-27-4-2006. - Leuven, Belgium : ISHS - ISBN 9066056193 - p. 123 - 130.
Event Leuven, Belgium : ISHS - ISBN 9066056193 The International Symposium on Greenhouse Cooling: Methods, Technologies and Plant Response, Almeria, 2006-04-24/2006-04-27
Department(s) Agrosystems
Publication type Contribution in proceedings
Publication year 2006
Abstract The scope of this paper is a new greenhouse design that incorporates both a filter for rejecting near infrared radiation (NIR) and a solar cooling system. Cooled greenhouses are an important issue for the combination of high global radiation and high outdoor temperatures. As a first measure, this study prevents heat entering the greenhouse by applying a NIR-reflective cover material. The special spectral selective properties of these materials will block up to 50% of the outside solar energy from entering the greenhouse, which will reduce the cooling capacity required. The second measure is the introduction of a solar driven cooling system. When the NIR reflecting coating is designed as a parabolic or circular shaped reflector integrated in the greenhouse, the reflected solar energy received by a PV cell at the focus delivers sufficient electric energy to drive a fan and pad cooling system. The excess energy can be used for desalination and/or energy supply. Parameters related to typical climate conditions and energy flows are presented.
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