Abstract: This article represents the results of experimental studies of the temperature regime during the long-term operation of the earth-to-air heat exchanger.
The average annual, total monthly and daily average specific amounts of heat extracted from the soil or released into the soil mass, respectively, depending on the cold or warm periods of the year, were determined. Analyzing the given data allowed a monthly assessment of the energy efficiency of using the earth-to-air heat exchanger. It is noted that the most significant thermal contribution occurs in the middle of the warm and cold periods of the year when the most significant difference in temperature of the outside air and the soil massif is observed. The use of earth-to-air heat exchangers is one of the necessary tools to lower the energy consumption for modern air-conditioning systems of buildings due to their energy efficiency.
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