激光光谱法同步测量尿素水溶液液膜厚度与浓度

doi:10.11949/j.issn.0438-1157.20141006

化工学报 ›› 2015, Vol. 66 ›› Issue (2): 759-763.DOI: 10.11949/j.issn.0438-1157.20141006

激光光谱法同步测量尿素水溶液液膜厚度与浓度

杨荟楠, 郭晓龙, 杨斌, 苏明旭, 蔡小舒

上海理工大学能源与动力工程学院, 上海市动力工程多相流动与传热重点实验室, 上海 200093

收稿日期:2014-07-03 修回日期:2014-11-25 出版日期:2015-02-05 发布日期:2015-02-05
通讯作者: 杨斌
基金资助:
国家自然科学基金项目(51306123);博士点基金联合资助课题新教师类(20133120120008);上海高校青年教师培养资助计划项目。

Simultaneous measurement of film thickness and concentration of urea-water solution by laser spectroscopy

YANG Huinan, GUO Xiaolong, YANG Bin, SU Mingxu, CAI Xiaoshu

School of Energy and Power Engineering, Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

Received:2014-07-03 Revised:2014-11-25 Online:2015-02-05 Published:2015-02-05
Supported by:
supported by the National Natural Science Foundation of China (51306123), the Joint Specialized Research Found for the Doctoral Program of Higher Education (20133120120008) and the Foundation for Training Young Teacher in University of Shanghai.

摘要/Abstract

摘要：

对尿素水溶液液膜厚度和浓度进行定量分析在工业应用中至关重要,而传统的测量方法只能对液膜厚度和浓度分别进行测量。提出了一种用于尿素水溶液液膜厚度和浓度高精度同步在线测量的新方法。通过灵敏度分析和内部交叉验证,选取了测量精度及灵敏度最高的一对波长组合(7040.75 cm^-1 与 6761.00 cm^-1)。由内部交叉验证可知,该方法测量液膜厚度误差小于1.40%,浓度误差小于5.76%。

关键词: 溶液, 测量, 膜, 浓度, 厚度

Abstract:

Measurement of film thickness and concentration of urea-water solution is very important in many practical applications. However, these two important parameters can only be determined separately by conventional measurement methods. Here, a novel online measurement method by laser spectroscopy was developed to obtain the film thickness and concentration of urea-water solution simultaneously. By sensitivity analysis and cross-validation, an optimal wavelength pair (7040.75 cm^-1 and 6761.00 cm^-1) was chosen to determine film thickness and concentration. As shown from cross-validation, uncertainties of the developed method were smaller than 1.40% for thickness measurement and 5.76% for concentration measurement.

Key words: solution, measurement, film, concentration, thickness

中图分类号:

TK31

杨荟楠, 郭晓龙, 杨斌, 苏明旭, 蔡小舒. 激光光谱法同步测量尿素水溶液液膜厚度与浓度[J]. 化工学报, 2015, 66(2): 759-763.

YANG Huinan, GUO Xiaolong, YANG Bin, SU Mingxu, CAI Xiaoshu. Simultaneous measurement of film thickness and concentration of urea-water solution by laser spectroscopy[J]. CIESC Journal, 2015, 66(2): 759-763.

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激光光谱法同步测量尿素水溶液液膜厚度与浓度

Simultaneous measurement of film thickness and concentration of urea-water solution by laser spectroscopy

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