Actas de congresos
Feasiblity Analysis Of Co-fired Combined Cycles Using Biomass-derived Gas And Natural Gas
Ecos 2006 - Proceedings Of The 19th International Conference On Efficiency, Cost, Optimization, Simulation And Environmental Impact Of Energy Systems. National Technical University Of Athens, v. , n. , p. 931 - 938, 2006.
This paper reports the feasibility analysis of co-fired combined cycles (biomass-derived gas + natural gas) based on the gasification of sugarcane residues (bagasse and trash). Performance results are based on simulation of co-fired combined cycles. Feasibility analysis is based on estimates of the capital costs and O&M costs for such cycles, taking into account current and near-term costs of BIG-CC technology (both considering scaling and learning effects). A deep reduction of the investments on the gasification island and auxiliaries is a key point to make BIG-CC competitive in the electricity market. In the near-term learning improvements can be reached with co-fired BIG-CC systems. Besides prevention of technical drawbacks of gas turbine operation with biomass-derived gas, co-fired BIG-CC units can operate with relatively large flexibility regarding fuel mix. The construction of 10 to 15 short- To medium-size gasification islands would be enough to induce important cost reductions due to learning effects. As long as the investment on the gasification island is reduced, and depending on the price ratio of natural gas and biomass, pure BIG-CC plants could achieve a reasonable level of feasibility regarding other options of electricity production.931938Bauen, A., Woods, J., Hailes, R., (2004) Biopowerswitch! WWF International and Aebiom, , London, UKDOE Biopower, , www.nrel.gov/analysis/power_databook/Rodrigues, M., Walter, A., Faaij, A., Co-firing of natural gas and biomass gas in biomass integrated gasification/combined cycle systems (2003) Energy, 28, pp. 1115-1131Waldheim, L., (2005) Overview of Gasification of Biomass 2005, , Presentation done in Piracicaba, Brazil, in SeptemberWalter, A., Llagostera, J., Souza, M.R., Faaij, A., Effect of the HRSG on the performance of co-fired combined cycles (2002) Proc. of the ECOS 2002 Conference, , BerlinLlagostera, J., Walter, A., Off-Design operation of co-fired combined cycles (2003) Proc. of the ECOS 2003 Conference, , CopenhagenDechamps, P.J., Pirard, N., Mathieu, P., Partload operation of combined cycle plants with and without supplementary firing (1995) J. Eng. for Gas Turbine and Power, 117, pp. 475-483Valdés, M., Rapún, J.L., Optimization of heat recovery steam generators for combined cycle gas turbine power plants (2001) Applied Thermal Engineering, 21, pp. 1149-1159Consonni, S., Larson, E.D., Biomass- gasifier/aeroderivative gas turbine combined cycles: Part B - performance calculations and economic assessment (1996) J Eng. for Gas Turbine and Power, 118, pp. 516-525(2004) Gas Turbine World 2004-2005 GTW Handbook, p. 28Faaij, A., Van Ree, R., Waldheim, L., Olsson, E., Oudhuis, A., Van Wijk, A., Daey-Ouwens, C., Turkenburg, W., Gasification of biomass wastes and residues for electricity production (1997) Biomass and Bioenergy, 12 (6), pp. 387-417NOVEM, Netherlands agency for energy and the environment (1998) Long Term Perspectives of Biomass Integrated Gasification with Combined Cycle Technology, , UtrechtPfeifenberger, J.P., Hanser, P.Q., Ammann, P.R., What's in the cards for distributed resources (1998) The Energy Journal, pp. 1-16IEA - International energy agency (2005) Natural Gas Information 2005 - IEA Statistics, , IEA, Paris, France