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首页> 外文会议>7th Biennial Conference on Engineering Systems Design and Analysis 2004(ESDA 2004) vol.1: Advanced Energy Systems; Advanced Heat Transfer in Engineering Systems; ... >THE STUDY OF THE EFFECTS OF GAS TURBINE INLET AIR COOLING ON THE HEAT RECOVERY BOILER PERFORMANCE
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THE STUDY OF THE EFFECTS OF GAS TURBINE INLET AIR COOLING ON THE HEAT RECOVERY BOILER PERFORMANCE

机译：燃气轮机进气冷却对热回收锅炉性能影响的研究

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Heat recovery steam generators (HRSG) are widely used in industrial processes and combined cycle power plants. The quantity and the state of the produced steam depend on the flue gas temperature and its mass flow rate. Two key factors, which affect those parameters, are the ambient temperature and the load of the gas turbines. The output power of the gas turbines degrades considerably in hot days of summer. The use of the inlet air cooling system to eliminate this problem is rapidly increasing. One of the effective methods is cooling the inlet air to the compressor by Evaporative Coolers. The purpose of this paper is to study the effects of the evaporative inlet air cooling system on the performance of a heat recovery boiler in a combined cycle power plant. The heat and mass balance of a typical HRSG and its components including the superheaters, evaporators and economizers were calculated. To analyze the effects of the changes in ambient temperature and the flue gas flow, a numerical software has been used. The results have shown that using the evaporative cooler will increase the flue gas mass flow rate to the HRSG. Nevertheless, the exhaust gas temperature control system holds this temperature almost constant. Also, the results show that the produced steam temperature remains almost constant. However, the steam mass flow rate increases. Therefore the output power of the steam turbine of the combined cycle will increase. The effect of the increase in the humidity ratio is shown to be insignificant. In fact, it has negligible effect on the produced steam flow rate and the sulfuric acid dew point.
机译：热回收蒸汽发生器（HRSG）广泛用于工业过程和联合循环发电厂。产生的蒸汽的量和状态取决于烟气温度及其质量流量。影响这些参数的两个关键因素是环境温度和燃气轮机的负载。在炎热的夏季，燃气轮机的输出功率会大大降低。消除这种问题的进气冷却系统的使用正在迅速增加。一种有效的方法是通过蒸发冷却器冷却压缩机的进气。本文的目的是研究蒸发式进气冷却系统对联合循环电厂余热锅炉性能的影响。计算了典型HRSG及其组件（包括过热器，蒸发器和节能器）的热量和质量平衡。为了分析环境温度和烟气流量变化的影响，已使用了数值软件。结果表明，使用蒸发冷却器将增加进入HRSG的烟气质量流量。然而，废气温度控制系统使该温度几乎保持恒定。而且，结果表明产生的蒸汽温度几乎保持恒定。但是，蒸汽质量流量增加。因此，联合循环的蒸汽轮机的输出功率将增加。湿度比增加的影响显示为微不足道的。实际上，它对产生的蒸汽流量和硫酸露点的影响可忽略不计。

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