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首页> 外文期刊>Journal of Energy Engineering >Analysis of Combined Effects of Air Transpiration Cooling and Evaporative Inlet Air Cooling on the Performance Parameters of a Simple Gas Turbine Cycle
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Analysis of Combined Effects of Air Transpiration Cooling and Evaporative Inlet Air Cooling on the Performance Parameters of a Simple Gas Turbine Cycle

机译：空气蒸发冷却和蒸发进气冷却对简单燃气轮机性能参数的综合影响分析

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This paper is focused on accessing the benefits of incorporating an air humidifier with a cooled gas turbine cycle. Air transpiration cooling has been adopted as the cooling technique for gas turbine blades. A parametric study of the effect of compressor pressure ratio (r(p,c)), compressor inlet temperature (CIT), turbine inlet temperature (TIT), inlet temperature ratio (r(IT)), ambient relative humidity, and ambient temperature on performance parameters of plant has been carried out. Evaporative inlet air cooling has been observed to improve the plant efficiency of a transpiration cooled gas turbine plant by 4.84% and plant specific work by 9.68% at an ambient temperature of 313 K and ambient relative humidity of 0.2. The effects of variation of ambient parameters on cycle performance are found to be more pronounced at higher turbine inlet temperature and higher compression ratio (r(p,c)). The work ratio increases with an increase in the value of r(IT) up to 5.6 after which it decreases. There exists an optimum r(IT) at any r(p,c) with reference to the maximum work ratio. The heat rate increases with an increase in r(IT) and a decrease in r(p,c). For all values of TIT there exists an optimum r(p,c) at which plant efficiency is at its maximum. (C) 2014 American Society of Civil Engineers.
机译：本文的重点是获得将空气加湿器与冷却的燃气轮机循环相结合的好处。空气蒸发冷却已被用作燃气涡轮机叶片的冷却技术。对压缩机压力比（r（p，c）），压缩机进口温度（CIT），涡轮进口温度（TIT），进口温度比（r（IT）），环境相对湿度和环境温度的影响进行参数研究已经对植物的性能参数进行了研究。在313 K的环境温度和0.2的环境相对湿度下，已经观察到蒸发进气冷却可以使蒸腾冷却的燃气轮机装置的装置效率提高4.84％，使装置的比功提高9.68％。发现在较高的涡轮机入口温度和较高的压缩比（r（p，c））下，环境参数变化对循环性能的影响更为明显。随r（IT）值的增加，工作比随r的增加而增加，直到5.6。参照最大功比，在任何r（p，c）处都有一个最优r（IT）。热量率随着r（IT）的增加和r（p，c）的减少而增加。对于所有TIT值，都存在一个最佳r（p，c），工厂效率达到最大值。 （C）2014年美国土木工程师学会。

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