Cogenerative combined cycle power plants fueled by coal and biomass gas
- Univ. of Bologna (Italy). Istituto di Macchine
This paper proposes a system made-up by a Lurgi fixed-bed gasifier fed with coal or biomass and by a dual pressure level gas-steam combined cycle power plant in cogenerative application. Some comparisons among different configuration plants with single or double intercooled compression gas turbine are carried-out. In this analysis gas turbine off-design operating conditions, due to the use of low-medium Lower Heating Value coal or biomass gas fuel, are pointed out. A constrained minimization algorithm is used for solving simultaneously all equations describing the system (included the ones representing energy balances and chemical equilibrium in the gasifier) to calculate the integrated plant performance. Results show that the proposed plant can work with energy conversion efficiency not much lower than the one obtainable when the gas turbine is fed with methane, that is the fuel for which the gas turbine itself was designed. Nevertheless, increases up to 15% in both electrical and thermal power are evaluated.
- OSTI ID:
- 86057
- Report Number(s):
- CONF-941024-; ISBN 0-7918-1213-8; TRN: IM9534%%128
- Resource Relation:
- Conference: 8. COGEN-TURBO power congress and exposition: gas turbines in cogeneration and utility, industrial and independent power generation, Portland, OR (United States), 25-27 Oct 1994; Other Information: PBD: 1994; Related Information: Is Part Of ASME cogen turbo power `94. IGTI-Volume 9; Kidd, H.A.; Cooke, D.H.; Fransson, T.H.; Greitzer, E.M. [eds.]; PB: 759 p.
- Country of Publication:
- United States
- Language:
- English
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