The efficiency of a coal-fired thermal plant is typically in the range of 30%-35%. In a combined cycle gas turbine system running on natural gas, the maximum efficiency is in the range 45%-50%.
Concurrently analyzed is that improvement of effective thermalefficiency after rise in compression ratio and water injection is resulted from thermalefficiency promotion of fuel-air ideal cycle.
同时分析了提高压缩比并掺水蒸气后有效热效率提高的主要来源是燃料—空气理想循环热效率的提高。
3
The optimization of the ecological function makes the entropy generation rate of cycle decrease greatly and the thermalefficiency increase with the cost of a little decreasing of the power output.