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首页> 外文期刊>Journal of Energy Engineering >Gas Turbine Power Augmentation by Overspray Inlet Fogging
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Gas Turbine Power Augmentation by Overspray Inlet Fogging

机译：过度喷雾进气雾化提高燃气轮机功率

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摘要

The power output of a gas turbine (GT) is highly affected by ambient temperature. A higher ambient temperature will result in a lower power output, due to reduced inlet air density and mass flow rate. Therefore, GT power loss can be recovered by cooling the inlet air. Due to compression with intercooling, overspray inlet fogging (wet compression) can increase power more than using only evaporative inlet cooling. It can also be used to recover aircraft thrust loss due to high ambient temperature operation, or to boost takeoff thrust. This paper is focused on the effects of adding an overspray inlet fogging system to an existing GT power plant. Simulation runs were made for adding an overspray inlet fogging system to a GE 7111EA GT engine to compare with the baseline case (28.2℃, 75.7% relative humidity). Power augmentation using evaporative and overspray inlet fogging can range from 1.85 to 16.8 MW, which amounts to a 2.5-22.4% power increase. Moreover, the net efficiency is also increased by 1.62%. Therefore, overspray inlet fogging is capable of both boosting the GT power and improving the efficiency. Results from this study can be used as a guideline for GT power augmentation by overspray inlet fogging.
机译：燃气轮机（GT）的功率输出受环境温度的影响很大。由于降低的进气密度和质量流量，较高的环境温度将导致较低的功率输出。因此，可以通过冷却进气来弥补GT的功率损失。由于采用中间冷却进行压缩，因此与仅使用蒸发式入口冷却相比，过喷的入口雾化（湿压缩）可以增加功率。它也可用于恢复由于高环境温度操作而导致的飞机推力损失，或用于提高起飞推力。本文的重点是在现有的GT电厂中增加过喷入口雾化系统的效果。为在GE 7111EA GT发动机上添加过喷进气雾化系统进行了模拟运行，以与基准情况（28.2℃，相对湿度为75.7％）进行比较。使用蒸发和过喷入口雾化的功率增加范围为1.85到16.8 MW，这相当于增加了2.5-22.4％的功率。此外，净效率也提高了1.62％。因此，过喷的入口雾化既可以提高GT功率又可以提高效率。这项研究的结果可以用作通过过度喷涂进气雾增加GT功率的指南。

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