Page 10 - E-Tez Bülteni Mart 2026, Sayı 5

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PhD. THESIS

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D e p a r t m e n t o f E l e c t r i c a l a n d
Department of Electrical and
Electronics Engineering
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Design And Real-Time Control Of A Next-Generation
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Aeroponic Plant Growth Chamber r
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Ali GÜNEY
A l i G Ü N E Y
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Thesis Supervisor: Asst. Prof. Dr. Oguzhan CAKIR
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Thesis Summary
In the last century, the world population has been projected to increase fourfold, and to meet the rising demand for food, agricultural
production must be increased by approximately 70%. This need has accelerated the transition from conventional agricultural practices to
modern, autonomous, and efficient systems such as robotics. One such method, aeroponic agriculture, enables plants to be grown without soil in
a controlled environment, significantly reducing the risks arising from climatic conditions, diseases, and pests. In addition, it offers up to 98%
savings in water use, 60% savings in nutrient use, and up to 100% savings in pesticide use, while providing a yield increase of 45–75% compared
with conventional agriculture. In this doctoral dissertation, at the first stage, the three-dimensional industrial design of an innovative aeroponic
plant growth chamber intended for use by individuals, researchers, and professional growers was developed. In the second stage, the heating
structure of the chamber was analyzed, and an analogy-based thermal model describing the temperature variation of the chamber was
established by considering the total power consumption, equivalent thermal resistances, air density, and thermal capacities. This model was
tested with PID-based controllers in a simulation environment, and its performance was evaluated. In the final part of this thesis, various
experimental studies are conducted on the developed chamber. Lighting patterns and LED models were determined, dynamic models were
derived for the temperature, humidity, electrical conductivity, and pH subsystems, and control algorithms were implemented. The obtained results
demonstrate that the proposed model and controller structures can effectively and stably control the environmental parameters of an
aeroponic plant growth chamber.
Keywords: Soilless agriculture, Aeroponic plant growth chamber, System modeling, Parameter optimization