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3D Conceptual Modelling and Direct Utilization Calculations of The Albanian Geothermal Resources

Engineering（科研） 2013年第1期5卷 202-207页

作者： nevton kodhelaj Aida Bode Department of Energy Resources Faculty of Geology and Mining Polytechnic University Tirana Albania Department of Natural Resources Faculty of Geology and Mining Polytechnic University Tirana Albania

Balneological use of the Albanian Geothermal springs and waters dates back centuries, but the first modern use started in 1937. Unfortunately they had not been used for its energetic values yet. The temperature of the water is above 60 °C and the flow above 16 l/s, thus direct utilization is possible, in particular for space heating. Three-dimensional temperature field calculations and engineering calculations on a heating system with heat exchangers are presented here. The results show that the water temperature is expected to be stable and considerably higher temperature is expected through deep well drilling. The University’s Campus of Tirana is composed of 29 buildings, which are partially heated through a coal heater. The installed capacity is 2558kW while the coal consumption is about 920 kg/h. The University’s Campus of Tirana is one of the most important areas and with the highest density of population in Tirana, so it is the best area to show the heat exchanger efficiency. The economic analyses prove that the borehole heat exchangers are more convenient than the coal heating systems.

关键词： Geothermal temperature field modelling radiators wells borehole heat exchangers

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3D Conceptual Modeling and Direct Utilization Calculations of the Albanian Low and Middle Enthalpy Geothermal Resources

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Journal of Energy and Power Engineering 2013年第8期7卷 1464-1471页

作者： nevton kodhelaj Aida Bode Department of Energy Resources Faculty of Geology and Mining Polytechnic University Tirana 1001 Albania Department of Natural Resources Faculty of Geology and Mining Polytechnic University Tirana 1001 Albania

The use of the Albanian geothermal springs and waters, for their curative effects （Natural SPA） dates back centuries, since the time of the Roman Empire, while their first modern use started only in 1937. Unfortunately they had not been used for its energetic values yet. The temperature of the water is above 60 ~C and the flow above 16 L/s, thus direct utilization is possible, in particular for space heating. Three-dimensional temperature field calculations and engineering calculations on a heating system with heat exchangers are presented here. The results show that the water temperature is expected to be stable and considerably higher temperature is expected through deep well drilling. The University＇s Campus of Tirana is composed of 29 buildings, which are partially heated through a coal heater. The installed capacity is 2,558 kW while the coal consumption is about 920 kg/h. The University＇s Campus of Tirana is one of the most important areas and with the highest density of population in Tirana, so it is the best area to show the heat exchanger efficiency. The economic analyses prove that the borehole heat exchangers are more convenient than the coal heating systems.

关键词： Geothermal temperature field modeling radiators wells borehole heat exchangers.

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Potential of Benja Geothermal Springs for Direct Utilization

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Journal of Earth Science and Engineering 2014年第11期4卷 684-692页

作者： Kamberi Zija kodhelaj nevton Bozgo Shkelqim Frasheri Alfred Cela Bashkim Aleti Riza Thodhorjani Spiro Zeqiraj Dulian Department of Energy Resources Faculty of Geology and Mining Polytechnic University of Tirana Tirana 1001 Albania Department of Earth Sciences Faculty of Geology and Mining Polytechnic University of Tirana Tirana 1001 Albania

In the Benja of Permeti village, eight springs are located in the Lengarica creek, and their curative values are known and used since the time of the Roman Empire. The eight springs erupt mineral water with temperatures in the range of 23-30℃ and yields in the range of 8 up to more than 40 L/s. The geothermal fluid, even though with relatively low temperatures, represent a competitive energy resource. The geothermal water flows directly to the river of Langarica, similarly with the other geothermal resources of Albania can be ＂translated＂ as ＂throwing in the creek＂ of considerable monetary values, delay in the economic development, infrastructure and also negative social impacts in the region. This paper aims to show that these waters are a competitive energy resource by the implementation of a combined and cascade system, and also they can by efficiently used for greenhouses, aquaculture and salts extraction.

关键词： Geothermal Benja temperature heat exchanger combined

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