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EXPERIENCE OF USING GEOTHERMAL ENERGY OF THE NEAR-SURFACE MASSIF OF ANCIENT GRANITOIDS FOR HEAT SUPPLY PURPOSES (SOUTH OF WEST SIBERIA)

A. A. Shevchenko 1, O. V. Skrobot 2

1 Novosibirsk State University of Architecture and Civil Engineering, Novosibirsk, Russia; 2 OOO SBG, Kemerovo, Russia

An example of transition of the heating- and hot-water supply system to a low-temperature geothermal energy source from the Paleozoic granitoid massif is given for a secondary school building in Novosibirsk. The necessity for change the source of heat supply arose in 2018 due to wear and tear of the coal boiler house old equipment, which has provided the school with heat since it was built in 1964. At the time of the geothermal project implementation, there were already several cases of successful use of underground heat-producing probes arranged in specially drilled geothermal wells for heating public facilities in neighboring Siberian cities (Tomsk, Barnaul). However, loose sedimentary rocks there served for the source of heat energy, that greatly simplified and accelerated the tasks implementation. The described experience of heating – and hot-water supply of building due to the low energy from a shallow lying massif of ancient rocky grounds with intrusive genesis is unique for Russia and can serve as a platform for the implementation of geothermal projects in regions with complicated ground conditions and moderately cold climate.

Keywords: geothermal energy, geothermal well, ground source heat pump, massif of Paleozoic granitoids, sustainable heat supply.

DOI 10.20403/2078-0575-2022-2-100-106

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