RESEARCH PAPERS: Advanced Energy Systems

A Methane-Steam Reformer for a Basic Chemically Recuperated Gas Turbine

[+] Author and Article Information
S. T. Adelman, M. A. Hoffman, J. W. Baughn

Department of Mechanical and Aeronautical Engineering, University of California, Davis, CA 95616

J. Eng. Gas Turbines Power 117(1), 16-23 (Jan 01, 1995) (8 pages) doi:10.1115/1.2812768 History: Received July 12, 1993; Revised May 11, 1994; Online November 19, 2007


Several illustrative designs are presented for a methane-steam reformer (MSR) that is used as a chemical recuperator in a Basic Chemically Recuperated Gas Turbine power cycle (a “Basic” CRGT is defined as one without intercooling or reheat). In this cycle, an MSR, heated by the turbine exhaust flow, converts a methane-steam mixture into a hydrogen-rich fuel that powers the gas turbine. A computer code was developed to calculate the size and performance characteristics of counterflow reformers. The code consists of a one-dimensional marching scheme that integrates the chemical, thermodynamic, and geometric variables along the heat exchanger/reformer tubes. The calculated designs were selected to give near-minimum catalyst volumes. These designs show that maintaining a high reformer gas temperature, using combustion-side heat transfer augmentation techniques, and using a catalyst of high reactivity are critical to obtaining a compact reformer design.

Copyright © 1995 by The American Society of Mechanical Engineers
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