98/00820 High performance power system (HIPPS) plant design and economics

Abstract

The U.S. Department of Energy is sponsoring two multi-phase programs to evaluate and demonstrate High Performance Power System (HIPPS) fueled with coal. The major goal of the HIPPS program is to develop a high efficiency, low emissions, coal-fired power system for central power plant application early in the twenty-first century. This paper describeS the Phase I efforts for the HIPPS program carried out by a team lead by United Technology Research Center (UTRC). Phase I included research and tests to define the power generation and emissions performance capabilities of a HIPPS plant design using a High Temperature Advanced Furnace (HITAF) to heat air for a gas turbine. The Phase I near-term commercial HIPPS plant design allows natural gas to supply up to 35% of the total energy input, supplementing the coal combustion in the HITAF, and boosting the air temperature to the level required for modern gas turbines. The ultimate HIPPS goal calls for an all coal design. The major objectives for the HIPPS program set by DOE are: (1) plant efficiency {ge} 47% IHHV; (2) Nominal plant capacity suited to baseload plant, 300 MWe; (3) Air emissions at 25% of New Source Performance Standards (Phase I); more stringent requirementsmore » of 10% NSPS are set for subsequent Phases; and (4) Cost of electricity at least 10% lower than modern coal plants with controls to meet NSPS. Phase I results, reported in this paper, include a commercial plant conceptual design, capital and operating cost estimates, and economic evaluations. Phase II involves furthers analysis of commercial plant designs, component and sub-system demonstration, and engineering for a demonstration of technology on the order of 50 to 100 MWe. Phase III is the final engineering, installation, and operation of the HIPPS demonstration plant.« less