Geothermal energy transported to earth surface through volcanoes and hydrothermal systems. Based on numerical model analysis of deep drilling and exploitation data of some Kamchatka and Kurile Islands geothermal reservoirs , and heat and mass flow rates estimations of some Kamchatka volcanoes , the following conceptual model of geothermal energy transport is suggested : if magma trapped in uppe...

Japan is a volcanic country having abundant geothermal resources. To date, Japan has 20 geothermal power generation facilities, with a total installed capacity of 550 MW. Most of these facilities are large capacity geothermal power plants constructed by utility power companies, but due to various circumstances, there are no further plans to build large capacity plants in the near future. The Ne...

In this study, a Geographic Information System (GIS) is used as a decision-making tool to target potential geothermal resources in Iran. The aims of the study are to update and identify promising areas for geothermal exploration, as the base study for the future regional-scale geothermal resources investigations and exploration drilling. After comprehensive study about available data in the cou...

The possible contribution of Al, Ba, Cd, Co, Cr, Cu, Fe, Mn, Mo, Pb, Sb, Sr, Ti, V and Zn from geothermal exploitation to the environmental contami­ nation of Mt. Amiata was evaluated by assaying the epiphytic lichen Parmelia sulcata from two sampling areas: Piancastagnaio, where there are geothermal power plants, and a remote site distant from geothermal power plants. The results showed that t...

Impact of Induced Thermal Stresses during Circulation Tests in an Engineered Fractured Geothermal Reservoir: Example of the Soultz-sous-Forêts European Hot Fractured Rock Geothermal Project, Rhine Graben, France — The wider concept of hot fractured rock geothermal energy is put forward to overcome the natural limitations of classic geothermal fields. A suite of numerical modules based on a disc...

An artificial neural network (ANN) approach was used to develop a new predictive model for the calculation of static formation temperature (SFT) in geothermal wells. A three-layer ANN architecture was successfully trained using a geothermal borehole database, which contains ‘‘statistically normalised’’ SFT estimates. These estimates were inferred from seven analytical methods commonly used in g...

The basis of this study is the widespread existence of low enthalpy geothermal resources in Turkey. The usage of low enthalpy geothermal resources in balneology, district heating and green house heating has made Turkey one of the primary consumer of geothermal energy in the world. However, the utilization of low enthalpy geothermal resources in geothermal-solar hybrid systems for electricity ge...