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Modeling framework for the simulation and control of greenhouse climate
Altes-Buch, Queralt; Lemort, Vincent
2018In Proceedings of the 10th International Conference on System Simulation in Buildings
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Keywords :
Greenhouse climate model; Greenhouses; Crop yield model; Climate control
Abstract :
[en] This work presents an open-source modeling framework for the purpose of greenhouse climate simulation. To that end, a greenhouse climate model and a crop yield model are implemented, based on the literature. Moreover, climate control system models are developed for the control of heating, ventilation, CO2 enrichment and supplementary lighting. Climate controllers aim at maintaining an indoor climate that has been designed to optimize crop growth. In this work, the indoor climate is computed by the climate model and the crop growth is defined by the yield model. To establish optimal growth conditions, a strategy is defined to select optimal temperature and CO2 set-points. The models are written in the Modelica language, thus enabling to simulate their integration with other thermal systems. The use of the models is illustrated in a case study. To that end, the models are coupled and run for a simulation time period equivalent to a growing cycle for tomato crop in mild-climate conditions. Results for the thermal consumption of the greenhouse, the harvest rate of the crop are presented. The control variables and the indoor climate variables and flows are illustrated. The obtained results and profiles are in accordance with the literature, thus ensuring the physical behavior of the model and the proper functioning of the proposed control strategies.
Disciplines :
Energy
Author, co-author :
Altes-Buch, Queralt ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Systèmes de conversion d'énergie pour un dévelop.durable
Lemort, Vincent  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Systèmes énergétiques
Language :
English
Title :
Modeling framework for the simulation and control of greenhouse climate
Publication date :
December 2018
Event name :
10th International Conference on System Simulation in Buildings
Event place :
Liege, Belgium
Event date :
10-12-2018 to 12-12-2018
Audience :
International
Main work title :
Proceedings of the 10th International Conference on System Simulation in Buildings
Pages :
20
Peer reviewed :
Peer reviewed
Available on ORBi :
since 19 December 2018

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