Mechatronic greenhouse microclimate temperature control system

Authors

DOI:

https://doi.org/10.20535/2521-1943.2024.8.2(101).298506

Keywords:

mechatronic control system, microclimate, temperature, heat output, greenhouse

Abstract

Sudden changes in air temperature and humidity have a negative impact on crop cultivation. Modern methods of regulating the microclimate of greenhouse facilities are mostly reduced to regulating the flow and temperature of air masses. The purpose of this work is to analyze the thermal radiation of a greenhouse facility and to create a mechatronic control system for heating elements. The simulation was performed for one day in the Kherson region (May 23, 2023). The effect of water vapor on thermal radiation and the mixed convection mechanism inside the greenhouse were not taken into account in the study. To simplify the analysis, the greenhouse was modeled without plants, as such a full simulation model is beyond the scope of this study. This analysis leads to an accurate estimate of the total heat transfer coefficient and heat flux of the greenhouse, which served as the basis for the creation and testing (plausibility check) of a simplified control program for the greenhouse microclimate system. The results of the study and the developed program for controlling heaters are suitable for use in control algorithms for the mechatronic greenhouse system to take into account cyclic daily changes in parameters.

References

  1. I. Ioslovich, P. Gutman and R.Linker, “Hamilton-Jacobi-Bellman formalism for optimal climate control of green-house crop,” Automatica, No. 45(5), 2009, pp. 1227–1231, doi: https://doi.org/10.1016/j.automatica.2008.12.024.
  2. N. Katsoulas, C. Kittas, I. L. Tsirogiannis, E. Kitta and D. Savvas, “Greenhouse microclimate and soilless pepper crop production and quality as affected fog evaporative cooling system,” Transaction of ASABE, 50, pp. 1831–1840, 2007, doi: https://doi.org/10.13031/2013.23947.
  3. C. Kittas, “Determination of the overall heat transfer coefficient of a greenhouse cover”, Agric Forest Meteorol., Vol. 69, pp. 205–221, 1994, doi: https://doi.org/10.1016/0168-1923(94)90026-4.
  4. G. Papadakis, A. Frangoudakis and S. Kyritsis, “Mixed, forced and free convection heat transfer at the greenhouse cover”, J Agric Engng Res., Vol. 51, pp. 191–205, 1992, doi: https://doi.org/10.1016/0021-8634(92)80037-S.
  5. N. Momirović, B. Vasić, D. Raičević and M. Oljača, “Technical systems for microclimate control in greenhouses,” Agricultural Engineering, Faculty of Agriculture, Universities in Belgrade, Institute of Agricultural Engineering, No. 4, 2007.
  6. X. Zhang, H. Wang, Z. Zou and S. Wang, “CFD and weighted entropy based simulation and optimisation of Chinese Solar Greenhouse temperature distribution,” Biosyst. Eng., No. 142, pp. 12–26, 2016, doi: https://doi.org/10.1016/j.biosystemseng.2015.11.006.
  7. G. Tong, D. M. Christopher and B. Li, “Numerical modelling of temperature variations in a Chinese solar greenhouse,” Comput. Electron. Agric., No. 68, pp. 129–139, 2009, doi: https://doi.org/10.1016/j.compag.2009.05.004.
  8. M. A. Lamrani, T. Boulard, J.C. Roy and A. Jaffrin, “Airflows and temperature patterns induced in a confined greenhouse,” J Agric Engng Res, No. 78(1), pp. 75–88, 2001, doi: https://doi.org/10.1006/jaer.2000.0568.
  9. R. Leyva, C. Constán-Aguilar, E. Sánchez-Rodríguez, M. Romero-Gámez and T. Soriano, “Cooling systems in screenhouses: Effect on microclimate, productivity and plant response in a tomato crop,” Biosyst. Eng., No. 129, pp. 100–111, 2015.
  10. S. Wang, T. Boulard, R. Haxaire, “Air speed profiles in a naturally ventilated greenhouse with a tomato crop,” Agric. For. Meteorol., No. 96, pp. 181–188, 1999, doi: https://doi.org/10.1016/S0168-1923(99)00063-5.
  11. N. Choab, A. Allouhi, A. El, T. Kousksou, S. Saadeddine and A. Jamil, “Review on greenhouse microclimate and application: Design parameters, thermal modeling and simulation, climate controlling technologies,” Sol. Energy., Vol. 191, pp. 109–137, 2019, doi: https://doi.org/10.1016/j.solener.2019.08.042.
  12. Meteorological station (2023, May 26). Available: https://meteopost.com/weather/archive/
  13. E. Yu. Synytsyna, “Model of the control object of the mechatronic microclimate system of a medium-sized greenhouse,” Mech. Adv. Technol., Vol. 7, No. 3, рр. 330–336, 2023, doi: https://doi.org/10.20535/2521-1943.2023.7.3.290773.

Downloads

Published

2024-06-11

How to Cite

[1]
Y. Synytsyna and O. Gubarev, “Mechatronic greenhouse microclimate temperature control system”, Mech. Adv. Technol., vol. 8, no. 2(101), pp. 164–171, Jun. 2024.

Issue

Vol. 8 No. 2(101) (2024)

Section

Mechanics

License

Copyright (c) 2024 Єлизавета Синицина, Олександр Губарев

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The ownership of copyright remains with the Authors.
 
Authors may use their own material in other publications provided that the Journal is acknowledged as the original place of publication and National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” as the Publisher.

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under CC BY 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work