金属材料表面发射率测量装置的设计与应用
Design and Application of Surface Emissivity Measuring Device for Metallic Materials
黄锦冬 1史玉豪 1陈孟涛 1戴彭宇 1吴传书 1梁博 1李圣慧 1张航2
作者信息
- 1. 江苏工程职业技术学院航空与交通工程学院,江苏 南通 226006
- 2. 江苏工程职业技术学院航空与交通工程学院,江苏 南通 226006;六盘水双元铝业有限责任公司,贵州 六盘水 553022
- 折叠
摘要
[目的]针对测量管壳式热交换器的管束表面发射率精度低、成本高的问题,设计了测量金属材料表面发射率的装置,提出测量金属材料表面发射率的方法.[方法]该装置结合温度平滑算法后,可以对设备全工作状态时被测材料表面发射率进行测量.[结果]使用该方法对块状钢材样品在200～500℃温度区间内进行测试,结果表明,标准算法下的温度仍然存在波动,且会造成发射率的振荡.而采用优化算法对于噪声和发射率有明显的平滑作用,即使面对外部环境扰动也有足够的抗性.[结论]研究结果可为相关设备炉内温度的精确测量提供参考.
Abstract
[Purposes]In response to the problem of low accuracy and high cost of measuring the surface emissivity of tube bundles in shell-and-tube heat exchangers,this paper designed a device for measur-ing the surface emissivity of metal materials and proposed a method for measuring the surface emissivity of metal materials.[Methods]The device combined with a temperature smoothing algorithm can provide measurement of the surface emissivity of the material under test when the equipment is in full operating condition.[Findings]The method was used to test lumped steel samples in the temperature range of 200～500℃,and the results show that the temperature under the standard algorithm still fluctuates and causes the emissivity to oscillate.The optimization algorithm has a significant smoothing effect on the noise and emissivity,and is sufficiently resistant even in the face of external environmental perturba-tions.[Conclusions]The results of the study can provide a reference for the accurate measurement of the temperature in the furnace.
关键词
表面发射率/碳钢/辐射传热/连续测量Key words
surface emissivity/carbon steel/radiative heat transfer/continuous measurement引用本文复制引用
出版年
2024
NETL
NSTL
万方数据