Site selection of closed loop geothermal pumps with Geographic Information System on the whole scale of Iran

Fossil energy sources are temporary and their use can cause many environmental pollutions, therefore, clean and alternative energy sources are needed. Geothermal pumps are closed loops of these energies but so far, an applied study on the use of this system has not been carried out on the whole scale of Iran. The use of routine methods for obtaining accurate information, from local ground conditions for installation, requires laboratory equipment and carrying out costly geological experiments on a local scale. As a result, the best method in terms of economic efficiency, on the whole scale of Iran, is the integration of the basic layers of information in the GIS in a spatial identification phase, to provide a basic distribution map for the installation of geothermal pumps. This map is designed to determine the baseline conditions, including the thermal conductivity of the bedrock, soil engineering, climatic and environmental conditions, land installation and land use, and their integration into the GIS. This map improves management in the following ways: site selection susceptible areas and reduce the cost of designing and installing geothermal pumps closed loops.