World geothermal power production status: Energy, environmental and economic study of high enthalpy technologies

被引：137

作者：

Chamorro, Cesar R. ^{[1
]}

Mondejar, Maria E. ^{[1
]}

Ramos, Roberto ^{[1
]}

Segovia, Jose J. ^{[1
]}

Martin, Maria C. ^{[1
]}

Villamanan, Miguel A. ^{[1
]}

机构：

[1] Univ Valladolid, Escuela Ingn Ind, Dpto Ingn Energet & Fluidomecan, Grp Termodinam & Calibrac TERMOCAL, E-47011 Valladolid, Spain

来源：

ENERGY | 2012年 / 42卷 / 01期

关键词：

Geothermal energy; Geothermal power plant; Dry Steam; Flash steam; ELECTRICITY-GENERATION; PLANTS;

D O I：

10.1016/j.energy.2011.06.005

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The current world status of geothermal electricity production, including installed capacities, number of units and energy produced by exploitation technology, is presented in this paper. Four geothermal model plants based on different modes of high enthalpy technologies are analyzed from energy, environmental and economic points of view for specific reservoir characteristics. Once process parameters are optimized for the best plant operation, a cost and financial analysis is performed within a given economic frame. This analysis shows that Dry Steam power plants are the most efficient. Flash steam power plants increase their exergy efficiency with increasing reservoir temperature. Double Flash technology raises the energy produced with respect to Single Flash between 17 and 25%. and economic parameters become better. An additional third flash process increases power production by 10%, but economic parameters are not improved unless a reservoir of very high temperatures is considered. The energy and economic study conclude that the choice of the best flash technology depends on the resource characteristics, the financial frame and the technology costs. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：10 / 18

页数：9

共 22 条

[1]

[Anonymous], RETSCREEN CLEAN EN P

[2] Future development of the electricity systems with distributed generation [J].