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首页> 外文期刊>Applied Mathematical Modelling >Ecological optimization of an irreversible Brayton cycle with regeneration, inter-cooling and reheating
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Ecological optimization of an irreversible Brayton cycle with regeneration, inter-cooling and reheating

机译：具有再生，中间冷却和再加热的不可逆布雷顿循环的生态优化

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摘要

A mathematical model is developed for an irreversible Brayton cycle with regeneration, inter-cooling and reheating. The irreversibility are from the thermal resistance in the heat exchangers, the pressure drops in pipes, the non-isentropic behavior in the adiabatic expansions and compressions and the heat leakage to the cold source. The cycle is optimized by maximizing the ecological function, which is achieved by the search for optimal values for the temperatures of the cycle and for the pressure ratios of the first stage compression and the first stage expansion. The advantages of using the regenerator, intercooler and reheater are presented by comparison with cycles that do not incorporate one or more of these processes. Optimization results are compared with those obtained by maximizing the power output and it is concluded that the point of maximum ecological function has major advantages with respect to the entropy generation rate and the thermal efficiency, at the cost of a small loss in power.
机译：建立了具有不可逆的布雷顿循环的数学模型，该循环具有再生，中间冷却和再加热。不可逆性来自于热交换器中的热阻，管道中的压降，绝热膨胀和压缩中的非等熵行为以及热源向冷源的泄漏。通过最大化生态功能来优化循环，这是通过寻找循环温度以及第一阶段压缩和第一阶段膨胀的压力比的最佳值来实现的。通过与不包含一个或多个这些过程的循环进行比较，可以看出使用再生器，中间冷却器和再热器的优势。将优化结果与通过最大化功率输出获得的结果进行比较，得出的结论是，最大生态功能点在熵产生率和热效率方面具有主要优势，但代价是功率损耗很小。

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  • 来源
    《Applied Mathematical Modelling》 |2015年第22期|6830-6844|共15页
  • 作者

    Santiago del Rio Oliveira; Vicente Luiz Scalon; Vitor Pereira Repinaldo;

  • 作者单位

    Department of Mechanical Engineering, Faculty of Engineering, Unesp University, Av. Eng. Luiz Edmundo C. Coube 14-01, Neighborhood: Vargem Limpa, 17033-360 Bauru, SP, Brazil;

    Department of Mechanical Engineering, Faculty of Engineering, Unesp University, Av. Eng. Luiz Edmundo C. Coube 14-01, Neighborhood: Vargem Limpa, 17033-360 Bauru, SP, Brazil;

    Department of Mechanical Engineering, Faculty of Engineering, Unesp University, Av. Eng. Luiz Edmundo C. Coube 14-01, Neighborhood: Vargem Limpa, 17033-360 Bauru, SP, Brazil;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Brayton cycle; Ecological optimization; Intercooler; Regenerator; Reheat; Irreversibility;

    机译：布雷顿循环生态优化;中冷器;再生器再加热;不可逆转;

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