Open AccessMathematical model of heat accumulation in the substrate and ground of a heliogreenhouse
Author(s) -
T. A. Faiziev,
Bobir Toshmamatov
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/723/3/032006
Subject(s) - greenhouse , heat transfer , substrate (aquarium) , mathematical model , thermal , convection , convective heat transfer , thermal energy storage , mechanics , environmental science , solar greenhouse , heat exchanger , materials science , thermodynamics , physics , geology , oceanography , quantum mechanics , horticulture , biology
This article describes the design and mathematical model for heat accumulation in the substrate and soil of a solar greenhouse. The results of the experimental studies are presented, the thermal processes that occur in the described system are considered, and a mathematical model for heat accumulation in the substrate and soil of the solar greenhouse is compiled. The proposed mathematical model facilitates the calculations for the accumulation and distribution of thermal energy in the different layers. Studied the accumulation of solar energy is carried out both in the greenhouse soil - the substrate, and in the heat storage channel. The article discusses the proposed mathematical model of transport processes in a solar greenhouse allows calculating the changes in the temperature of the soil-substrate and the average volumetric temperature for given initial conditions and external influences, depending on time. The discrepancy between the calculated and experimental data on heat transfer in the IC is ± 2 ÷ 7 for heat transfer in the substrate - ± 10 ÷ 15%. The article presents the developed mathematical model of radiation-convective heat exchange of a two-block solar greenhouse with a substrate and heat accumulation is very correct, as evidenced by the comparison of the calculation results using the mathematical model and field experimental data.