Feasibility study for an advanced coal fired heat exchanger/gas turbine topping cycle for a high efficiency power plant
- 1 February 1993
- report
- Published by Office of Scientific and Technical Information (OSTI)
Abstract
The overall objective of this project is to prove the feasibility of AFR's concepts for a high efficiency coal-fired generating plant using the REACH/Exchanger concept to power an externally fired gas turbine. It will provide a design of an advanced technology furnace/heat exchanger combination in which a ceramic heat exchanger is aerodynamically protected from the corrosive particle laden coal combustion products. The heat exchanger is fired by radiative and convective heat transfer from a moderately clean fuel stream and by radiative heat transfer from the flame of a much larger uncleaned fuel stream. In principle, 35% of the energy will be provided by the former and 65% by the later. The fluid mechanics in the furnace/heat exchanger are controlled so that the flow of the combustion products, from the moderately clean fuel stream, sweeps past the heat exchanger to prevent the contact of coal particles with the uncleaned stream.Keywords
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