Energy and Exergy Analyses of a New Combined Cycle for Producing Electricity and Desalinated Water Using Geothermal Energy

被引：50

作者：

Akbari, Mehri ^{[1
]}

Mahmoudi, Seyed M. S. ^{[1
]}

Yari, Mortaza ^{[1
,2
]}

Rosen, Marc A. ^{[3
]}

机构：

[1] Univ Tabriz, Fac Mech Engn, Tabriz 5166616471, Iran

[2] Univ Mohaghegh Ardabili, Fac Mech Engn, Ardebil 5619911367, Iran

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

来源：

SUSTAINABILITY | 2014年 / 6卷 / 04期

关键词：

Geothermal energy; Kalina cycle; LiBr/H2O heat transformer; Thermodynamic analysis; Thermoeconomic analysis; HEAT TRANSFORMER; COMBINED POWER; KALINA CYCLE; OPTIMIZATION; SYSTEM;

D O I：

10.3390/su6041796

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A new combined cogeneration system for producing electrical power and pure water is proposed and analyzed from the viewpoints of thermodynamics and economics. The system uses geothermal energy as a heat source and consists of a Kalina cycle, a LiBr/H2O heat transformer and a water purification system. A parametric study is carried out in order to investigate the effects on system performance of the turbine inlet pressure and the evaporator exit temperature. For the proposed system, the first and second law efficiencies are found to be in the ranges of 16%-18.2% and 61.9%-69.1%, respectively. For a geothermal water stream with a mass flow rate of 89 kg/s and a temperature of 124 degrees C, the maximum production rate for pure water is found to be 0.367 kg/s.

引用

页码：1796 / 1820

页数：25

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