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Introduction. Reducing energy consumption in solar greenhouses and the efficient use of renewable energy sources are among the urgent issues today.
Methods and materials. In the study, a solar greenhouse with dimensions of 8.6×5.8 m was selected, and PEX Ø16 mm pipes for the underfloor heating system were installed under the soil in a serpentine pattern. To describe the heat transfer processes, energy balance equations for the soil and indoor air were developed, and a discrete mathematical model based on the forward Euler method was created. Water flow rate, pressure losses, and heat loads were calculated to determine the hydraulic parameters of the system.
Results. According to the research results, the soil temperature varied within the range of 20.9-27.6℃, ensuring the optimal temperature regime of 22-25℃ for the cucumber root zone. It was determined that the indoor air temperature increased by an average of 4.0-6.3℃ due to the underfloor heating system, while solar energy covered 15.4-50.5% of the total heat load.
Conclusion. The solar water collector-based underfloor heating system provided energy-efficient and environmentally safe heating in the solar greenhouse. The developed mathematical model is significant as an effective tool for evaluating the thermal regime of the system and determining its optimal design parameters. The research results demonstrated the possibility of creating a stable microclimate and improving energy efficiency in solar greenhouses through the use of renewable energy sources.
Библиографические ссылки
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Copyright (c) 2026 Uzoqov, G'.N., Ibragimov, U.X., Xusenov, A.A. (Muallif)