Effect of evaporation cooling of gas turbine blades on design, efficiency and economy

被引：0
|
作者：
Ausmeier, Sabine [1 ]
Bitterlich, Walter [1 ]
Winske, Paul [1 ]
机构：
[1] Energy and Power Station Technology, University of Essen, Universitätsstr. 15, 45117 Essen, Germany
来源：
| 2001年 / Belgian Soc. of Mechanical and Environ. Engineering卷 / 46期
关键词：
Compressors - Cooling - Economics - Energy efficiency - Evaporation - Gas turbines - Steam generators - Thermal cycling - Thermal expansion;
D O I：
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学科分类号：
摘要：
The cooling of gas turbine blades with air from the compressor caused a decisive technology jump to enable higher inlet temperatures and thus efficiencies. A further step could be the cooling with evaporating water in a closed cycle. Thereby, small water mass flow rates are needed because of the efficient cooling performance. This cooling is optimum in a combined cycle with superheating of the cooling steam in the heat recovery steam generator and expansion in the steam turbine.
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