Comparison of the HTTT Reheat-Gas-Turbine Combined Cycle With the HTTT Nonreheat Gas-Turbine Combined Cycle

[+] Author and Article Information
I. G. Rice

Spring, Texas

P. E. Jenkins

Texas A&M University, College Station, Texas

J. Eng. Power 104(1), 129-142 (Jan 01, 1982) (14 pages) doi:10.1115/1.3227242 History: Received December 08, 1980; Online September 28, 2009


High-temperature turbine technology (HTTT) when applied to the reheat-gas-turbine combined cycle (RHGT/CC) offers distinct advantages over the presently contemplated United States Department of Energy (DOE) HTTT simple-cycle gas-turbine combined cycle (SCGT/CC) being developed for gaseous fuel derived from coal. Specific improvements are: 1) higher combined-cycle efficiency, 2) higher specific output per unit of air flow, 3) less critical high-temperature nozzle-vane and rotating-blade surface area to be cooled, 4) less strategic high temperature metal material to be used, and 5) less overall cycle-cooling degradation allowing growth potential. New cooling techniques employing steam are required to accomplish these projections which necessitates advanced research and development and presently unavailable mathematical analytical approaches.

Copyright © 1982 by ASME
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