Performance evaluations of a geothermal power plant
Performance evaluations of a geothermal power plant
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DOI：
10.1016/j.applthermaleng.2011.08.013
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发表时间：
2011-12
影响因子：
6.4
通讯作者：
C. Coskun;Z. Oktay;I. Dincer
中科院分区：
文献类型：
--
作者：
C. Coskun;Z. Oktay;I. Dincer
通过能量和火用，使用实际工厂数据来评估其能量和火用性能，对土耳其图兹拉的一个运行中的7.5 MWe二元地热发电厂进行热力学分析。研究了8个与性能相关的参数，即总（火用）破坏率、组分（火用）破坏率、无因次（火用）破坏率、能量可再生率、（火用）可再生率、能量回注率、（火用）回注率和改进潜力。能量和火用损失/破坏的工厂及其单位的确定和说明使用能量和火用流程图。盐水回注装置的能量损失和火用损失最大。植物能量效率的变化范围为6%~ 12%。火用效率值在35%和49%之间变化。年平均能量效率和火用效率分别为9.47%和45.2%。
Thermodynamic analysis of an operational 7.5 MWe binary geothermal power plant in Tuzla-Turkey is performed, through energy and exergy, using actual plant data to assess its energetic and exergetic performances. Eight performance-related parameters, namely total exergy destruction ratio, component exergy destruction ratio, dimensionless exergy destruction, energetic renewability ratio, exergetic renewability ratio, energetic reinjection ratio, exergetic reinjection ratio and improvement potential are investigated. Energy and exergy losses/destructions for the plant and its units are determined and illustrated using energy and exergy flow diagrams. The largest energy and exergy losses occur in brine reinjection unit. The variation of the plant energy efficiency is found between 6% and 12%. Exergy efficiency values change between 35 and 49%. The annual average energy and exergy efficiencies are found as 9.47% and 45.2%, respectively.