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首页> 外文期刊>WSEAS Transactions on Fluid Mechanics >Fluid flow in channels between two gas turbines and heat recovery steam generator - a theoretical investigation
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Fluid flow in channels between two gas turbines and heat recovery steam generator - a theoretical investigation

机译：两台燃气轮机和热回收蒸汽发生器之间的通道中的流体流动-理论研究

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摘要

The paper present the results of a study for a special configuration of a combined cycle power plant. In this plant two gas turbines are installed to feed one Heat Recovery Steam Generator (HRSG). The flue gas flow in the channels between the two gas turbines and the HRSG was analyzed to get a more homogenous flow distribution in front of the first heating surface of the HRSG which is arranged downstream of the gas turbines. In the study a particular attention was placed at the operation conditions where only one gas turbine is in operation. The results of the investigation have shown that the measures with a higher possibility to get a homogenous flow distribution in front of the first tube bank arranged downstream of the gas turbine have also a higher pressure loss and in last consequence they are linked with a higher loss of gas turbine power respectively a lower efficiency of the combined cycle. The study has also shown that a larger merging area for the flue gas arranged between the merging point of the two flue gas ducts and the entrance into the HRSG results in a more even flow distribution.
机译：本文介绍了联合循环发电厂特殊配置的研究结果。在该工厂中，安装了两台燃气轮机，为一台余热回收蒸汽发生器（HRSG）供料。分析了两个燃气轮机和HRSG之间通道中的烟道气，以使HRSG的第一受热面（位于燃气轮机下游）更均匀地分配气流。在这项研究中，特别注意只有一台燃气轮机在运行的运行条件。调查结果表明，在燃气轮机下游布置的第一个管束前部更有可能获得均匀流量分布的措施也有较高的压力损失，最后，它们与较高的损失有关。燃气轮机的功率分别降低了联合循环的效率。研究还表明，在两个烟气管道的汇合点和HRSG入口之间布置的烟气汇合区域更大，流量分布更加均匀。

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