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首页> 外文期刊>International Journal of Heat and Mass Transfer >Performance of a large-scale solar updraft power plant in a moist climate
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Performance of a large-scale solar updraft power plant in a moist climate

机译：湿润气候下大型太阳能上升气流发电厂的性能

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摘要

The governing equations of the moist air of a solar updraft power plant (SUPP) are derived with the consideration of the condensation occurring in the tower based on the compressible fluid model. The expression of the pressure potential of a large-scale SUPP containing no integral is also established while the condensation of water vapor exists in the tower. Based on the developed mathematical model, the transient state simulation of the performance of the SUPP under Wuhan climate conditions is carried out. Three scenarios that incorporate different treatments of the humidity of the ambient air, i.e. dry ambient, moist ambient without condensation in the plant, moist ambient with condensation in the plant, are simulated on a typical day in the summer of Wuhan. The consideration of moisture and condensation produces more power generation than the other scenarios. However, the peak daily power output is obtained for the dry ambient With the increase in the relative humidity of the ambient air, the total power generation decreases first and then increases while the condensation starts occurring. The power output also becomes smoother with higher relative humidity. The profile of power generated from the reference SUPP in Sishen, South Africa with abundant solar radiation and that in Wuhan with heavy moisture are compared.
机译：基于可压缩流体模型，考虑到塔内发生的冷凝现象，推导了太阳能向上气流发电厂（SUPP）的湿空气控制方程。当塔中存在水蒸气冷凝时，还建立了不包含积分的大型SUPP的压力势​​的表达式。基于所建立的数学模型，对武汉市气候条件下SUPP的性能进行了瞬态模拟。在武汉夏季典型的一天中，模拟了三种对环境空气湿度进行不同处理的方案，即干燥的环境，工厂中没有凝结的潮湿环境，工厂中有凝结的潮湿环境。与其他方案相比，考虑水分和冷凝水会产生更多的电力。然而，在干燥的环境中获得了峰值日发电量。随着环境空气相对湿度的增加，总发电量先减少，然后增加，同时开始发生冷凝。相对湿度较高时，输出功率也会变得更平滑。比较了南非太阳神中具有丰富太阳辐射的参考SUPP和水分多的武汉中参考SUPP产生的功率分布。

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