| 基于PMV-PPD的地面空调最佳送风速度 |
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| 引用本文： | 林家泉,李弯弯.基于PMV-PPD的地面空调最佳送风速度[J].航空学报,2017,38(8). |
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| 作者姓名： | 林家泉 李弯弯 |
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| 作者单位： | 中国民航大学电子信息与自动化学院,天津,300300 |
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| 基金项目： | 国家自然科学基金委员会-中国民航局联合基金，天津市自然科学基金(13JCYBJC42300) Joint Fund of the National Natural Science Foundation of China and the Civil Aviation Administration of China，Natural Science Foundation of Tianjin |
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| 摘 要： | 针对目前飞机地面空调恒速送风所造成的客舱热舒适性和节能效果不佳的问题,运用CFD技术建立了Boeing737飞机客舱的仿真模型,并通过实验室1∶1尺寸的Boeing737实验舱进行验证,证明所建立的CFD模型合理有效。在此模型基础上,模拟了飞机客舱内的风速场、温度场,根据采样点的风速和温度,分别得到不同送风速度下的客舱内热舒适性评价指标PMV和PPD,通过高斯拟合得到地面空调送风速度与PPD平均值之间的曲线关系,求解得到了满足热舒适性要求的地面空调最佳送风速度,从而实现地面空调的节能控制。
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| 关 键 词： | 地面空调 热舒适性 数值模拟 高斯拟合 最佳送风速度 |
Best wind speed of ground air conditioning system based on PMV-PPD |
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| LIN Jiaquan,LI Wanwan.Best wind speed of ground air conditioning system based on PMV-PPD[J].Acta Aeronautica et Astronautica Sinica,2017,38(8). |
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| Authors: | LIN Jiaquan LI Wanwan |
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| Abstract: | To address poor cabin comfort and energy efficiency caused by constant-velocity air supply of ground air conditioning,the cabin simulation model for Boeing737 is built by CFD method.The size of the simulation cabin is the same as that of Boeing737.Validity of the model is verified by laboratory experiments.Based on this model,the effects of different air supply velocity on the temperature field and wind velocity field are simulated.The values of wind speed and temperature are used to calculate the PMV and PPD at the sample points.The relationship between the ground air conditioning air supply velocity and the PPD is also fitted by the Gaussian fitting curve method.The best air supply velocity range is obtained to meet the thermal comfort requirement,providing basis for energy-saving of ground air conditioning. |
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| Keywords: | ground air conditioning thermal comfort numerical simulation Gaussian fitting best wind speed |
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