Design Optimisation of the Graz Cycle Prototype Plant

Abstract

Introduction of closed cycle gas turbines with their capability of retaining combustion generated CO2 can offer a valuable contribution to the Kyoto goal and to future power generation. The use of well established gas turbine technology enhanced by recent research results enables designers even today to present proposals for prototype plants. Research and development work of TTM Institute of Graz University of Technology since the 90’s has lead to the Graz Cycle, a zero emission power cycle of highest efficiency and with most positive features. In this work the design for a prototype plant based on current technology as well as cutting-edge turbomachinery is presented. The object of such a plant shall be the demonstration of operational capabilities and shall lead to the planning and design of much larger units of highest reliability and thermal efficiency.

ZEITMOP Concept — A Polygeneration System for Municipal Energy Demands

“…46-66], gave a description of the zero-emission power cycle (GOOSTWEG) with steam recirculation to moderate combustion of fuel in pure oxygen, combined with triple turbine expansion, and CO 2 deflection for sequestration. Some comparable ideas, discussed in the recently edited book [3], were presented by Marchetti [4], Jericha et al [7,8], Pak et al [9], Mathieu [10], Sundkvist et al [11], Andersen et al [12], and Ausubel [13]. The history of zero-emission power generation systems and critical review of many ZEPP cycles has been extensively described in Foy and Yantovski [5].…”

The flow path characteristics analysis for supercritical carbon dioxide gas turbines

“…During the last decade, large efforts are spent on the development of the oxy-fuel combustion cycles with zero harmful emissions [1][2][3][4][5], and the NET Power cycle technology is one of the most prospective. The main operation component of the cycle is carbon dioxide.…”

Design Details of a 600 MW Graz Cycle Thermal Power Plant for CO2 Capture

“…The Institute for Thermal Turbomachinery and Machine Dynamics at Graz University of Technology is working since 1995 on the Graz Cycle system, an oxy-fuel cycle with internal combustion of fossil fuels with pure oxygen allowing an easy and costeffective capture of the combustion generated CO 2 by condensation. Since then -as the authors believe -an impressive list of publications on this topic has been accomplished [7][8][9][10][11][12][13][14][15][16][17][18]. In [7,8] first thermodynamic studies were presented on a cycle with internal combustion of methane with pure oxygen.…”