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%.
烧煤的热电厂的效率通常在30%到50%之间，使用天然气的联合循环燃气轮机系统最大效率在45%到50%之间，而很多专家认为高温燃料电池的效率可达到80%至85%。
Based upon the theory of finite time thermodynamics, this paper derives the maximum power output and the corresponding efficiency bound for a finite time closed-Brayton cycle gas turbine.
本文从有限时间热力学观点出发，导出有限时间约束条件下闭式燃气轮机循环的最大功率输出及其相应的效率界限。
Model acceptance test is applied to accept Yantan turbine performances. The model efficiency maximum is 92 percent in the completion of similar prototype.
岩滩水电站水轮机性能采用模型验收试验方式验收。其全模拟模型最高效率达到92%。
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