Development of High-Temperature Subsystem Technology to a Technology Readiness State:Phase I. First Quarterly Technical Progress Report,June--August 1976.

摘要

The overall objective of the High-Temperature Turbine Technology Program is the development of a 100megawatt and larger size industrial,high-temperature,open-cycle gas-turbine engine to a state of technology readiness. The industrial gas-turbine engine is intended for use in a combined cycle plant and utilizes a coal-derived fuel. A combined cycle plant consists of an open-cycle gas turbine exhausting into a waste heat boiler that supplies steam to a steam turbine. In turn,both turbines drive electric generators to produce electric power. Because of the operational requirements and the nature of the operating environment and rigorous duty cycle special emphasis is placed on durability. The overall cost of power is the most important criterion used by public utilities for selecting base-load equipment. Also,the lowest cost of power can be attained through careful compromises of capital cost,maintenance cost,and efficiency. Each of these variables is under control of the equipment designer. Parametric analyses have been conducted for identification of systems and equipment and the results have shown the preliminary performance of various gas-turbine engines and steam bottoming cycle systems operating in conjunction with a molten-salt gasifier. A preliminary heat and mass-balance analysis for a power system has indicated an overall efficiency rate of nearly 43percent. Off-design performance of the gasifier,gas-turbine,and steam bottoming cycle has been defined. Analysis of transient operating modes and identification of control requirements has been started. Effort is being aimed at defining the open-cycle gas-turbine engine,including the effects of various engine components on combined-cycle system performance. (ERA citation 02:019604)