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 333474
Title Receding Horizon Optimal Control of a Solar Greenhouse. GreenSys2004, Leuven, 2004 september 12-16
Author(s) Ooteghem, R.J.C. van; Stigter, J.D.; Willigenburg, L.G. van; Straten, G. van
Event Greensys 2004, Leuven, 2004-09-12/2004-09-16
Department(s) Systems and Control Group
Publication type Contribution in proceedings
Publication year 2004
Abstract A solar greenhouse has been designed that maximizes solar energy use and minimizes fossil energy consumption. It is based on a conventional Venlo greenhouse extended with a heat pump, a heat exchanger, an aquifer and ventilation with heat recovery. The aim is to minimize fossil energy consumption, while maximizing crop dry weight, keeping temperature and humidity within certain limits and satisfying a temperature integral. These requirements are defined in a goal function, which is minimized by optimal control. A greenhouse with crop model is used to simulate the process behaviour to determine closed loop optimal control trajectories. The boiler use is reduced, thereby reducing fossil energy use. Gas use is decreased by 77% compared to a conventional greenhouse with optimal control.
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