High pressure ceramic air heater for indirectly fired gas turbine applications
The EFCC cycle is conceptually simple. Air enters the compressor where it is pressurized and becomes the tube-side flow of the ceramic air heater. Heat transferred from the hot combustion gases flowing through the shell-side raises the air temperature to the desired turbine inlet temperature. Internally insulated high pressure piping returns the heated compressor air to the turbine, where it is expanded providing power to drive the electric generator and gas turbine compressor. Exhaust air from the turbine is used as the combustion air for the coal combustor. The EFCC cycle burns pulverized coal in an atmospheric combustion chamber similar to the combustion system in a conventional steam generator. The combustion gas exits the combustor and enters a slag screen, or impact separator, where the larger ash particles are collected to prevent fouling of the heat exchanger. After the slag screen, the combustion gas enters the shell-side of the CerHX where its thermal energy is transferred to the tube side air flow. Shell-side exit temperatures are sufficiently high to provide thermal energy for the bottoming Rankine Cycle through a heat recovery steam generator. Exhaust gas exiting the steam generator passes through a flue gas desulfurization system and a particulate removal system.
- Research Organization:
- Hague International, South Portland, ME (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC21-90MC26008
- OSTI ID:
- 10104393
- Report Number(s):
- DOE/MC/26008-94/C0240; CONF-930893-18; ON: DE94002968; BR: AA3520100/AA5520000
- Resource Relation:
- Conference: Joint contractors meeting on advanced turbine systems, fuel cells and coal-fired heat,Morgantown, WV (United States),3-5 Aug 1993; Other Information: PBD: [1993]
- Country of Publication:
- United States
- Language:
- English
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High-pressure ceramic air heater for indirectly fired gas turbine applications
High-pressure ceramic air heater for indirectly fired gas turbine applications