バイオエタノールを用いる化学再生ガスタービンシステムに関するエネルギープロセス解析(熱工学,内燃機関,動力など)  [in Japanese] Numerical Analysis for Chemically Recuperated Gas Turbine System (CRGT) Fuelled by Bio-Ethanol(Thermal Engineering)  [in Japanese]

Chemically recuperated Gas Turbine (CRGT) that recovers exhaust heat by endothermic reaction converting fuel to reforming gas is one of candidates for effective utilization of ethanol from biomass fermentation. Bio-ethanol can easily be applied to steam reforming process for hydrogenrich gas production, because the moisture in bio-ethanol is included about 80% after the fermentation process. The chemical composition in reformer was evaluated according to chemical equilibrium equations. This numerical analysis reports a performance comparison with simple cycle gas turbine. Thermochemical recuperation in the ethanol was allowed to achieve a significant change in power output, and the maximum increase in thermal efficiency was 16% compared with simple cycle at 8.0 in steam/fuel molar ratio and 600 deg. C in reforming temperature.