Performance evaluations of a geothermal power plant

被引：49

作者：

Coskun, C. ^{[1
]}

Oktay, Z. ^{[1
]}

Dincer, I. ^{[2
]}

机构：

[1] Balikesir Univ, Fac Engn, Dept Mech Engn, Balikesir, Turkey

[2] Univ Ontario Inst Technol, Fac Engn & Appl Sci, Oshawa, ON L1H 7K4, Canada

来源：

APPLIED THERMAL ENGINEERING | 2011年 / 31卷 / 17-18期

关键词：

Geothermal energy; Exergy; Efficiency; Geothermal power plant; Binary plant; Performance parameters; DISTRICT-HEATING SYSTEMS; EXERGETIC ANALYSIS; RENEWABLE ENERGY; RANKINE-CYCLE; KALINA CYCLE; GENERATION; RESOURCES; EFFICIENCIES; PARAMETERS; STATE;

D O I：

10.1016/j.applthermaleng.2011.08.013

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

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. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：4074 / 4082

页数：9

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