Emissions and Thermodynamic Performance Simulation of an Industrial Gas Turbine; 45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 2009

Modeling of Variable Inlet Guide Vanes Affects on a One Shaft Industrial Gas Turbine Used in a Combined Cycle Application Proceedings of ASME Turbo Expo 2008: Power for Land, Sea and Air GT2008 June 9-13, 2008, Berlin, Germany

Exergy Analysis of BIGGT and EFGT Cycles International Journal of Exergy, 2007

Exergy Analysis of BIGGT and EFGT Cycles

Availability of biomass in Brazil makes this fuel a major candidate to increase its presence in the country’s energy matrix. In North-eastern Brazil, biomass available from sugarcane industry represents an annual energy resource of 146 PJ at an average cost of US$ 1.5/GJ. This paper aims to analyse the match between biomass and gas turbines. Two types of power plants are studied: the BIGGT and the EFGT cycles. The method involves design point exergoeconomic analysis, in order to identify major sources of exergy destruction and devices that can be thermodynamically enhanced. Results are compared with the Natural Gas Fuelled cycle.

Sandro Barros Ferreira, Paula de Mello Ribeiro Pinto* and Sérgio Leal Braga

Separation of CO2 into Cycles Based on Gas Turbines for Electric Energy Generation

The current project proposes an evaluation of techniques for capturing CO2 in thermoelectric power plants based on gas turbines, specifically referring to the impact of the insertion of a CO2 capture system through chemical absorption with an amine solution, and a compression and liquefaction unit for the CO2 captured during the performance of a combined cycle thermoelectric plant.

A brief summary of the CO2 capture techniques in thermoelectric plants that are currently being studied is presented. The text then describes the power plant and the capture by a chemical absorption system. The power plant studied has a 3x3x1 combined cycle unit commissioned with 809,6 MW of “in situ” potency. The model proposed for the system evaluated a loss of efficiency of 9.2% in the cycle, similar to amounts published previously. The cycle’s specific emission decreased from 360 gCO2/kW-hr to 72 gCO2/kW/hr, capturing 270 ton/hr of CO2 and effectively preventing [1] 213 ton/hr of CO2 from being released into the atmosphere.

Sandro Barros Ferreira* Fabiano A. dos Santos* Paula de M. Riveiro Pinto *Vinicius P. de Avellar