Prediction of elemental components of ground bamboo using micro-NIR spectrometer

12th TSAE International Conference

Posom, J.^1^2 ; Saechua, W.^3

Department of Agricultural Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen

40002, Thailand^1

Applied Engineering for Important Crops of the North East Research Group, Department of Agricultural Engineering, Faculty of Engineering, Khon Kaen University, 40002, Thailand^2

Agricultural Engineering Department, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang, Bangkok

10520, Thailand^3

关键词: Combustion performance;    Cross-validation technique;    Elemental components;    Hemi-cellulose;    NIR spectrometer;    Partial least squares regressions (PLSR);    Reference method;    Regression coefficient;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/301/1/012063/pdf
DOI  :  10.1088/1755-1315/301/1/012063

来源: IOP

【 摘 要 】

The combustion performance depended on heating value of as-received bamboo which involved elemental components (C, H, N, O, S). The experiment using Micro-NIR spectrometer to investigate of 80 ground bamboo samples and partial least squares regression (PLSR) with cross validation technique was used to develop the model. The reference method was performed on the elemental analyser. It was showed that only C (carbon) was efficiently possible to determine with R2 approximately of 0.6, RMSECV 0.612%, SECV 0.616% and Bias 0.001%. Important peaks in regression coefficient plot at wavelengths 1174 nm and 1927 nm corresponded to C-H overtone and C=O str. 2nd overtone for lignin. At wavelength 1395 nm and 1728 nm were related to 2C-H str.+C-H def. and C-H str. overtone for hemi-cellulose. At wavelength 1580 nm, 1632 nm, 1779 nm, 1824 nm, and 2023 nm conformed respectively to O-H str.1st overtone, C-H str.1st overtone, C-H str. overtone, O-H str.+2C-O str. and 2O-H def.+C-O def. for cellulose.