Gas turbine engine
First Claim
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1. A gas turbine engine system comprising in operating series:
- a compressor system for compressing a working fluid,a combustor downstream of the compressor system,a turbine system downstream of the combustor,vapour generating means downstream of the turbine having a first operating side for containment of the working fluid and a second operating side for containment of a fluid to be vapourised in the vapour generating means by heat transfer with the working fluid, wherein the vapour generating means has a dry-run capability such that the turbine exhaust may pass through the first operating side without a fluid to be vapourised passing through the second operating side,characterised in that the gas turbine engine system further comprises a bypass damper downstream of the first operating side of the vapour generating means and a condenser for condensing condensable fluid from the working fluid, the bypass damper being switchable between a first operating position where the working fluid does not pass through a condenser and a second operating position where the working fluid passes through the condenser.
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Abstract
A steam injection gas turbine engine having a once-through steam generator (OTSG). A condenser is provided downstream of the OTSG to capture water and is protected from hot flue gasses during startup by a bypass circuit. Optionally, heating the exhaust downstream of the condenser using coolant taken from an intercooler provides plume suppression.
29 Citations
14 Claims
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1. A gas turbine engine system comprising in operating series:
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a compressor system for compressing a working fluid, a combustor downstream of the compressor system, a turbine system downstream of the combustor, vapour generating means downstream of the turbine having a first operating side for containment of the working fluid and a second operating side for containment of a fluid to be vapourised in the vapour generating means by heat transfer with the working fluid, wherein the vapour generating means has a dry-run capability such that the turbine exhaust may pass through the first operating side without a fluid to be vapourised passing through the second operating side, characterised in that the gas turbine engine system further comprises a bypass damper downstream of the first operating side of the vapour generating means and a condenser for condensing condensable fluid from the working fluid, the bypass damper being switchable between a first operating position where the working fluid does not pass through a condenser and a second operating position where the working fluid passes through the condenser. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A gas turbine engine system comprising in operating series:
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a first compressor system for compressing a working fluid, an intercooler downstream of the first compressor system for cooling the working fluid using a cooling fluid, a second compressor system downstream of the intercooler for receiving the cooled working fluid, a combustor downstream of the second compressor system, a turbine system downstream of the combustor, a heat exchanger downstream of the turbine for cooling the working fluid, a condenser downstream of the heat exchanger for condensing fluid from the working fluid, and heating means downstream of the condenser, characterised in that, in use, the heating means provides heat to the working fluid from the cooling fluid containing heat absorbed in the intercooler. - View Dependent Claims (13, 14)
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Specification