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 510015
Title Optimal Day-to-Night Greenhouse Heat Storage : Square-Wave Weather
Author(s) Seginer, Ido; Straten, Gerrit van; Beveren, Peter van
Source IFAC-PapersOnLine 49 (2016)16. - ISSN 2405-8963 - p. 375 - 380.
DOI https://doi.org/10.1016/j.ifacol.2016.10.069
Department(s) Biobased Chemistry and Technology
WUR GTB Algemeen
Publication type Refereed Article in a scientific journal
Publication year 2016
Keyword(s) Co-state - Constrained optimum - Greenhouse - Heat storage - Optimal control - Time on bounds
Abstract

Day-to-night heat storage is often practiced in cold-climate greenhouses. It is suggested to manage the heat storage by considering the co-state (virtual value) of the stored heat in the on-line optimization of the greenhouse environment. Examples worked out for a periodic square-wave weather show that a properly selected constant co-state can produce an optimal solution to the control problem. The optimal co-state is shown to change with time over the year. Maximizing the performance criterion can also be achieved by minimizing the time that the heat buffer is either completely empty or completely full.

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