Dejan Milenic

Hydrogeothermal Potential of the Belgrade City Area, the Capital of Serbia First Assessment

The first assessment of hydrogeothermal potential of the Belgrade city area was carried out up to the depth of 300 m. The criterion for defining the in-depth cut of the research was based on financial viability of resource exploitation, and it is related to the method of drilling exploitation boreholes. The temperatures of the groundwater resources up to 300 m deep, range from 12 to 25 °C, so their use for the sake of the building air-conditioning is determined by the application of heat pumps. According to the assessed quantities of hydrogeothermal resources (kg/s), the temperature difference which can be achieved on the temperature exchanger (°C) and, finally, the specific heat capacity of the water (KJ/kg/°C), the total hydrogeothermal potential of the Belgrade city area is approximately 1200 MW. Half of the total heating requirements of the urban residential and business funds in the Belgrade city area is met with the district heating system, and the other half is met with the electric energy, up to 20 %; gas, 20 %; and hard mineral fossil fuels (coal, wood), 10 %. The total installed capacity of the heating plants is about 2500 MW, and it can be concluded that hydrogeothermal resources could meet about 50 % of the city’s heating needs. According to the above-mentioned data, hydrogeothermal resources are a strategically significant resource for the further development of the Belgrade city area.

Geology and hydrogeology of the Čemernica mountain massif, Western Serbia

The mountain massif of Cemernica, Western Serbia, is an orogenic feature of the Inner Dinarides. Hitherto, hydrogeological prospecting of the Massif was all on a regional scale, not detailed. Only scanty data, previously collected, were mappable on a scale larger than 1:100 000. The 2005 to 2008 research of the Cemernica Mountain Massif included geological and hydrogeological reconnaissance and mapping, the employment of remote sensing, a geophysical survey, the monitoring of quantitative and qualitative groundwater variation parameters, etc. The groundwaters of Cemernica are a large potential resource of water supply to multiple users. This paper is a contribution to the study of the geology and hydrogeology of the Cemernica Mountain Massif.