作者：欧凯¹, 洪晓斌¹, 文泽贵¹, 季勇², 刘桂雄¹

作者单位：1. 华南理工大学机械与汽车工程学院, 广东 广州 510640;
2. 广州信禾检测设备有限公司, 广东 广州 510000

关键词：烟密度; 烟气总值; 最大衰减率; 正交试验

摘要：

为提高烟密度测试精度,用三水平三因素的正交设计方法对烟密度测试系统参数(包括辐射板黑体温度、点火器的点火火焰高度、烟道中烟气流速)进行组合优化设计。通过对试验结果、极差值和方差值的分析,得出对材料产烟影响的主次因素。实验结果表明:采用辐射板黑体温度为505℃、点火器的点火火焰高度为12 mm、烟道中烟气流速为2.5 m/s的系统参数组合,可得到最大的烟气总值和光的最大衰减率,为提高烟密度测试精度提供依据。

Parameter combination optimization of smoke density test apparatus for building materials combustion based on orthogonal experiment design

OU Kai¹, HONG Xiao-bin¹, WEN Ze-gui¹, JI Yong², LIU Gui-xiong¹

1. School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou 510640, China;
2. Guangzhou Sunho Testing Equipment Co., Ltd, Guangzhou 510000, China

Abstract: In order to improve the measuring accuracy of smoke density, three parameters and three levels orthogonal table were adopted to confirm the optimal combination parameter of smoke density test, where the three parameters were respectively blackbody temperature of radiant panel, flame height of igniter, velocity of flue gas. The range analysis of experimental results showed the relative importance of different parameters affecting the smoke production. Under the similar experiment conditions as described in this paper, the optimized parameter combination for the smoke density test apparatus was confirmed that blackbody temperature was 505℃, flame height was 12 mm and flue gas velocity was 2.5 m/s, which established the basis for improving the measurement accuracy.

Keywords: smoke density; total cost of flue gas; maximum attenuation; orthogonal design

2014, 40(4): 128-131  收稿日期: 2014-1-19;收到修改稿日期: 2014-2-24

基金项目: 国家科技部科技型中小型企业创新基金项目(12C26214405145);广东省中国科学院全面战略合作项目(2012B091100224);广州市中小型企业创新基金项目(201114200202)

作者简介: 欧凯(1990-),男,湖北石首市人,硕士研究生,专业方向为智能传感技术。

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