Abstract
With the utilization of the available potentials and technologies, geothermal energy may contribute to the reduction of the quantities of the emitted contaminants and greenhouse gases, as well as the development of peripheral regions. Towards this end, such governmental measures are needed that set up a favourable regulatory environment, and put the financial funds for the support of implementation in place so that geothermal energy resources could complement the currently used, conventional energy carriers, and more efficient settlement development could be achieved. In this context, the University of Debrecen and the University of Oradea have conducted joint studies with the purpose of making a realistic assessment of geothermal energy resources in the region of Săcueni-Létavértes and examining the options of long-term utilization. The research has been multidisciplinary, and thus embraced the field of geography, geodetics, well drilling, automation, mechanical engineering and tourism. The principal goal has been the utilization of geothermal energy with the largest possible efficiency in the area of Săcueni and Létavértes.
Highlights
From the broad-scaling studies, this article intends to highlight the importance of geothermal energy in settlement development in view of the region of Létavértes and Săcueni, on the basis of the available geothermal potentials
The analysis has relied on the empirical data of the system operated by Aquaplus Kft. in Kistelek as concerning transportability, as well as the Lindal diagram, which designates the areas of use for thermal waters of varied temperatures
On the basis of the temperature of the thermal water, the heat loss during transportation, the thermal well and the facilities to be supplied in both Létavértes and Săcueni, as well as the linear and road distances of the settlements within the region from Létavértes and Săcueni, the following conclusions can be drawn: The temperature of the thermal water that is theoretically available in Létavértes, and brought to the surface in Săcuieni allows the provision of water featuring appropriate temperature to the public administration, educational and church institutions located in the settlements, the parts of the towns with commercial functions, areas of small-town buildup and tourism development features, as well as industrial and agricultural sites
Summary
From the broad-scaling studies, this article intends to highlight the importance of geothermal energy in settlement development in view of the region of Létavértes and Săcueni, on the basis of the available geothermal potentials. The data that is available in connection with the thermal wells having been established since the 1980s in Săcueni are encouraging in view of the more effective exploitation of the potentials In these wells, the temperature of thermal water is in the range of 50– 80°C, comes to the surface at a pressure of 0.5–0.8 MPa, while its chemical composition – HCO3, Cl, Na, I, Br – makes it suitable for therapeutic purposes and use in bathing facilities in addition to geothermal energy utilization. In the region of Létavértes only geologic studies, test drillings and calculations are available in relation to the local geothermal endowments, and in view of them the expected temperature of the water reaches 70°C
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