| 反射隔热涂料热工计算方法研究 |
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| 引用本文： | 田慧峰,曹伟武.反射隔热涂料热工计算方法研究[J].建筑节能,2010,38(10). |
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| 作者姓名： | 田慧峰 曹伟武 |
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| 作者单位： | 1. 上海理工大学动力工程学院,上海,200093
2. 上海工程技术大学机械工程学院,上海,200336 |
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| 摘 要： | 反射隔热涂料在夏热冬冷和夏热冬暖地区已有很多应用。试验证明,在屋面和外墙表面使用隔热涂料可以在夏季有效降低内表面温度,提高室内舒适度,降低空调耗电量。将有效传热系数法应用于反射隔热涂料的热工计算,该方法不仅考虑了太阳辐射吸收系数、半球发射率等重要参数,还充分考虑了当地气候状况的影响。针对武汉地区某实际项目,采用有效传热系数法对反射隔热涂料的传热性能进行了计算分析,结果表明该方法可以体现反射隔热涂料对墙体传热性能的影响,是较为科学合理的隔热涂料热工计算解决方案。
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| 关 键 词： | 反射隔热涂料 太阳辐射吸收系数 半球发射率 有效传热系数 |
Thermal Calculation Method of Reflecting Heat Insulating Coatings |
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| TIAN Hui-feng,CAO Wei-wu.Thermal Calculation Method of Reflecting Heat Insulating Coatings[J].Construction Conserves Energy,2010,38(10). |
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| Authors: | TIAN Hui-feng CAO Wei-wu |
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| Affiliation: | TIAN Hui-feng 1,CAO Wei-wu 2(1.College of Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China,2.College of Mechanical Engineering,Shanghai University of Engineering Science,Shanghai 200336,China) |
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| Abstract: | Reflecting heat insulating coatings is applied widely in Hot Summer and Cold Winter Zone and in Hot Summer and Warm Winter Zone.Experiment showed that using reflecting heat insulating coatings on roof and exterior wall could reduce the inner surface temper-ature,improve the indoor comfort and decrease the air-conditioning electricity consumption.The effective heat transfer coefficient method is applied to thermal calculation,taking into account not only the solar radiation absorption coefficient,but also th... |
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| Keywords: | reflecting heat insulating coatings solar radiation absorption coefficient hemispherical emittance effective heat transfer co-efficient |
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