Performance and Water Consumption of the Solar Steam-Injection Gas Turbine Cycle

Author:

Livshits Maya,Kribus Abraham1

Affiliation:

1. e-mail:  School of Mechanical Engineering, Tel Aviv University, Tel Aviv 69978, Israel

Abstract

Solar heat at moderate temperatures around 200 °C can be utilized for augmentation of conventional steam-injection gas turbine power plants. Solar concentrating collectors for such an application can be simpler and less expensive than collectors used for current solar power plants. We perform a thermodynamic analysis of this hybrid cycle, focusing on improved modeling of the combustor and the water recovery condenser. The cycle's water consumption is derived and compared to other power plant technologies. The analysis shows that the performance of the hybrid cycle under the improved model is similar to the results of the previous simplified analysis. The water consumption of the cycle is negative due to water production by combustion, in contrast to other solar power plants that have positive water consumption. The size of the needed condenser is large, and a very low-cost condenser technology is required to make water recovery in the solar STIG cycle technically and economically feasible.

Publisher

ASME International

Subject

Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment

Reference9 articles.

1. Solar Hybrid Steam Injection Gas Turbine (STIG) Cycle;Sol. Energy,2012

2. Cheng-Cycle Implementation on a Small Gas Turbine Engine;J. Eng. Gas Turbines Power,1984

3. Performance and Reliability Improvements for Heavy-Duty Gas Turbines,2000

4. Technological and Economical Analysis of Water Recovery in Steam Injected Gas Turbines;Appl. Therm. Eng.,2001

5. Development of Gas Turbine Steam Injection Water Recovery (SIWR) System;J. Eng. Gas Turbines Power,1994

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