Exergoeconomic evaluation of electricity generation by the medium temperature geothermal resources, using a Kalina cycle: Simav case study

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• 作者：Oguz Arslan
• 关键词：Energy ; Exergy ; Geothermal ; Kalina cycle ; KCS-34 ; Life cycle cost ; Simav ; Turkey
• 刊名：International Journal of Thermal Sciences
• 出版年：2010
• 出版时间：September 2010
• 年：2010
• 卷：49
• 期：9
• 页码：1866-1873
• 全文大小：563 K

文摘

Recent technical developments have made it possible to generate electricity from geothermal resources with low and medium enthalpy. One of these technologies is the Kalina Cycle System (KCS-34). In this study, electricity generation from Simav geothermal field is investigated. The optimum operating conditions for the KCS-34 plant design are determined on the basis of the exergetic and life-cycle-cost concepts. With the best design, power generation of 41.2 MW and electricity production of 346.1 GWh/a can be obtained with an energetic efficiency of 14.9 % and exergetic efficiency of 36.2 % . It is shown that, with the currently prevailing interest and inflation rates, the plant designs considered are economically feasible for values of the present worth factor (PWF) higher than 6.