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Investigation on Performance of Cycle Combined Brayton and Ambient Pressure Gas Turbine

机译：布雷顿－常压燃气轮机联合循环性能研究

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This paper addresses the configuration layout and the study on performance of Ambient Pressure Gas Turbine Cycle (APGC). The performance of cycle combined Brayton Cycle (BC) and APGC which is with regenerator is further simulated and analyzed. These models for simulation are developed with the software ASPEN PLUS. The APGC flow sheet and relative processing parameters are conducted and the investigating result is presented. The APGC operates under atmospheric pressure condition which can recover the exhausted gas from the topping power plant to increase the power production and the overall energy utilization efficiency of the power plant itself. Compared with the conventional micro gas turbines, APGC takes many advantages. As a result, APGC system will be introduced and the new combined system will also be created to contribute to save the energy and reduce the fuel consumption. The promising cycle combined BC and APGC with regenerator is presented and discussed with BC as the topping cycle and APGC as the bottom one. Based on the data of 350kw small gas turbine, the results of combined system output and electric efficiency are obtained by varying the upper cycle pressure ration from 2 to12, at any value of bottom turbine expansion pressure between 0.1bar and 0.9bar. For micro/small gas turbine power unit, when the bottom turbine pressure was 0.6 bar. and the upper pressure ratio was 3.5, the combination system gives the best electric efficiency 35.2%. By analyzing the performance results of various combined cycles, the best performance could be obtained by varying the bottom turbine expansion pressure and the upper pressure ratio.
机译：本文介绍了环境燃气轮机循环（APGC）的配置布局和性能研究。对带有再生器的布雷顿循环（BC）和APGC组合循环的性能进行了进一步的仿真和分析。这些仿真模型是使用ASPEN PLUS软件开发的。进行了APGC流程图和相关处理参数，并给出了研究结果。 APGC在大气压条件下运行，可以回收顶部电厂的废气，从而提高电厂自身的发电量和整体能源利用效率。与传统的微型燃气轮机相比，APGC具有许多优势。结果，将引入APGC系统，还将创建新的组合系统，以节省能源并减少燃料消耗。提出并讨论了将BC和APGC与再生器相结合的有希望的循环，以BC为顶循环，以APGC为底循环进行讨论。根据350kw小型燃气轮机的数据，在底部涡轮膨胀压力介于0.1bar和0.9bar之间的任意值下，通过将上限循环压力比从2更改为12，可以获得系统输出和电效率的组合结果。对于微型/小型燃气轮机动力装置，当底部涡轮压力为0.6 bar时。最高压力比为3.5，组合系统的最佳电效率为35.2％。通过分析各种联合循环的性能结果，可以通过改变底部涡轮膨胀压力和上部压力比来获得最佳性能。

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