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首页> 外文会议>IASTED International Conference on Power and Energy Systems >THERMODYNAMIC ANALYSIS FOR HEAT RECOVERY STEAM GENERATION OF COGENERATION GAS TURBINE CYCLE WITH REHEAT
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THERMODYNAMIC ANALYSIS FOR HEAT RECOVERY STEAM GENERATION OF COGENERATION GAS TURBINE CYCLE WITH REHEAT

机译：热恢复热恢复蒸汽发电热力学分析再加热

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In recent decade, more attention has been paid to reheat gas turbine cycles because of their high exhaust gas temperature. Using heat energy of exhaust gases in a steam generating system is one scheme that has been suggested. In this research, heat recovery steam generator (HRSG) is analysed as an appliance for transferring heat between exhaust gases and water and design parameters were optimized. The results show that decreasing pinch point temperature difference makes both energetic and exergetic efficiency increase. They also show that with larger process steam pressure, exergetic efficiency increase significantly but energetic efficiency decreases. These efficiencies are less affected by variation of final temperature difference. However decreasing the final temperature difference makes the mass flow rate of steam increase. Thus for optimum design of HRSG in a combined system such as cogeneration gas turbine cycle with reheat, a proper value of the mentioned parameters must be chosen depending on the demand for power or heat in different situation.
机译：近十年来，由于其高排气温度，重新加热燃气涡轮机循环已经提高了更多的关注。在蒸汽发生系统中使用废气的热能是已经提出的一种方案。在该研究中，分析了热回收蒸汽发生器（HRSG）作为用于在废气和水之间传递热的器具，优化设计参数。结果表明，夹紧点温度差异的降低使得能量和前进的效率增加。他们还表明，随着工艺蒸汽压力较大，淬火效率显着增加，但精力充沛的效率降低。通过最终温差变化的变化，这些效率的效率较小。然而，降低最终的温差使得蒸汽的质量流量增加。因此，在诸如热再加热的电机燃气涡轮机循环之类的组合系统中的HRSG的最佳设计，必须根据对不同情况的功率或热量的需求来选择所提到的参数的适当值。

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