共查询到15条相似文献，搜索用时 62 毫秒
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为了提升湿空气燃气轮机循环的调控灵活性,自主设计和搭建了后冷湿化器一体化实验系统,通过实验获得不同水气比下后冷湿化器出口空气的温湿度和出口水温,利用实验数据修正表面化学反应速率,基于表面化学反应模型建立了后冷湿化过程三维数值模型,分析了水气比和进口水温对后冷湿化器性能的影响。结果表明：建立的后冷湿化器传热传质模型能高精度模拟后冷湿化过程,空气温度沿流动方向呈逐渐降低的趋势,空气的含湿量和相对湿度沿流动方向逐渐升高;水气比和进口水温均对后冷湿化器的性能有较大影响,随着水气比和进口水温增大出口空气湿度提高,湿化性能提升,而降低水气比有利于提升空气后冷性能。 相似文献
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饱各器是HAT循环中的关键部件，对其性能的认识关系到整个系统的性能分析。由于饱和器内存在复杂的气液两相流动和相互间的传热质过程，其性能与很多参数有关，因此用一个或多个指标从一个或多个方面来评价饱和器性能问题一直是在研究的问题。本文使用了炯分析的方法，建立了饱和器炯衡模型，分析了内部炯损失，提出了性能评价的方法和4个评价指标：热力学完善度、炯效率、炯损系数和炯流密度变化率，通过这些评定准则可以对饱和器用能水平作出评价，为今后饱和器的设计和性能分析提供了参考。 相似文献
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Yuzhang WANG Yixing LI Shilie WENG Yonghong WANG 《Frontiers of Energy and Power Engineering in China》2008,2(1):43-47
An experimental investigation of the thermodynamic performance of a counter-flow spray humidifier was conducted on the basis
of theoretical analysis of the heat and mass transfer mechanism inside the humidifier. Critical parameters such as the temperature
and relative humidity of air and the temperature of water at the inlet and outlet were measured. The influence of every measured
parameter on the thermal performance of the humidifier was obtained under different experimental conditions. The cooling number,
whose variation was also obtained, was calculated according to the measured data. The experimental results show that both
the temperature and the temperature increment of outlet humid air and the temperature of outlet water increase with an increase
of the water-gas ratio, whereas the cooling number decreases. Under all experimental conditions, the outlet humid air reaches
or is close to the saturation level. The lower cooling number is favorable for the system, but it has an optimal value for
a certain humidifier.
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Translated from Journal of Power Engineering, 2006, 40(9): 1263–1267 [译自: 动力工程] 相似文献
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