| 摘要 |
Process for generating mechanical power by premixing a gaseous fuel with steam, burning the fuel/steam mixture and expanding the hot combustion gas in a turbine. Preferably the expanded gas is cooled to a temperature in the range of from 150 DEG C to 250 DEG C, and then used for heating water by indirect heat exchange to a temperature in the range of from 130 DEG C to 200 DEG C. The hot water may be evaporated into the gaseous fuel by contacting it therewith countercurrently. Steam is thus generated at a relatively low temperature by evaporating preheated water into the fuel gas stream to be burned in the combustion chamber of a gas turbine. In this way waste heat of a low temperature level can be put to good use. |
