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- W2270399528 abstract "The need for generating electric power with increased efficiency and decreased emissions is widely accepted, especially for coal-burning powerplants. Of all the proposed options for future coal-fired plants, the highest efficiencies can only be achieved by using Brayton cycles (gas turbines) rather than Rankine cycles (steam turbines). The DOE, recognizing this constraint, began the High Performance Power Generating System (HIPPS) program, which utilizes gas turbines but excludes all coal combustion products from contaminating the working fluid. This type of indirect-fired gas turbine thus avoids the expense of hot gas cleanup and/or the corrosion of turbine blades by coal combustion products. The design goals for Phase 1 HIPPS program include a 47% overall thermal efficiency for a plant that controls NO{sub x}, SO{sub x} and particulates to one-quarter of the NSPS. United Technologies Research Center is heading up a team of seven research organizations to develop concepts and evaluate designs for a 300 MWe indirect fired combined cycle plant utilizing a 65% coal, 35% natural gas, fuel mix. The optimized design employs both radiative and convective air beaters to transfer the energy from coal combustion to the gas turbine working fluid. Because of present day materials limits, it is necessary tomore » use a natural gas topping cycle to reach the appropriate turbine temperatures required for high efficiency. One of the goals of the HIPPS designs is to maximize the heat from coal combustion in the gas turbine cycle. In the present configuration, about 50% of the coal combustion energy is so used. In addition, the designs for the air heaters must maximize heat transfer and working lifetimes to offer a practical option for utilities. Several of these design considerations will be presented.« less" @default.
- W2270399528 created "2016-06-24" @default.
- W2270399528 date "1999-01-01" @default.
- W2270399528 modified "2023-09-26" @default.
- W2270399528 title "99/00728 Engineering development of a coal-fired high performance power generating system" @default.
- W2270399528 doi "https://doi.org/10.1016/s0140-6701(99)93001-1" @default.
- W2270399528 hasPublicationYear "1999" @default.
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