Perhitungan Cadangan Energi Panas Bumi Berdasarkan Data Jurnal (original) (raw)

Astronomically located on coordinate 120o29’00” - 124o7’00” BT and 0o32’00” - 0o53’00” LS. Administratively the research area is located in the area concession of Pertamina Geothermal Energy Limited company’s, Kotamobagu Regency, North Sulawesi. This research is referred to know the geothermal reserves of the Kotamobagu prospect area, with qualitative method by geological analysis and kuantitatife method by geochemical and geophysical analysis. The reserves calculate performed with the volumetric method (measurable hypothesis) refers to geothermal SNI. Variables value determination obtained through geological data, geochemical analysis, geophysical analysis, and assumed parameter number in unexpected resource class geothermal SNI. The obtained variables from this research is density 2,6 gr/cm3, volume 16,895 km2, fluid type is bicarbonate and sulfate, initial temperature 260oC, final temperature 180 oC, surface temperature 91,4 oC, water saturation 100 %, porosity 10%, rock heat capacity 1 kJ/kg °C, age of the plant 30 years, electricity conversion factor 10 %, and also additional variables obtained by the steam heat table (Beaton, 1986). Total of the geothermal reserves available are 176.28 Mwe. Keywords : kotamobagu, reserves, geothermal energy, volumetric method