典型文献
TGA/DSC study to characterise and classify coal seams conforming to susceptibility towards spontaneous combustion
文献摘要：
Thermogravimetric analysis/differential scanning calorimeter (TGA/DSC) technique along with basic coal characteristics study is carried out for eighty coal samples of Indian coalfields,to determine spontaneous combustion propensity behaviour of coal.TGA study of coal samples indicates that there is an increase in the mass of coal samples in the temperature range 150-350 ℃,which may be due to oxygen adsorption and absorption.The correlation and principal component analysis states that the component of proxi-mate analysis (Mad,VMd,FR,and VR) have an acceptable correlation with the TGA experiments results i.e.,Tgsh and Tgign.Multiple fixed nonlinear regression analysis shows that thermogravimetry (TG) exper-iment results Tgign may be the best index to categorise/classify the coal as per their susceptibility towards spontaneous combustion.The authors proposed four groups of classification as per their propensity towards spontaneous combustion depending upon the moisture (Mad),volatile matter (VMd),and TG ignition temperature from differential thermogravimetric (DTG) curve (Tgign) using hierarchal clustering analysis.The coal samples of different seams from Indian coalfield may be classified into four different clusters,viz.very highly/extremely susceptible (Tgign ＜ 260 ℃),highly susceptible (260 ℃ ≤ Tgign ＜ 290℃),moderately susceptible (290 ℃ ≤ Tgign ≤ 320 ℃),and poorly susceptible (Tgign ＞ 320 ℃).The field observations and TGA/DSC experiment results with the following statistical analysis substantiate a sim-ilar assessment.
文献关键词：
中图分类号：
作者姓名：
Niroj Kumar Mohalik;Somu Mandal
作者机构：
CSIR-Central Institute of Mining and Fuel Research (CIMFR),Dhanbad 826015,India;Academy of Scientific and Innovative Research (AcSIR),Ghaziabad 201002,India
文献出处：
引用格式：
[1]Niroj Kumar Mohalik;Somu Mandal-.TGA/DSC study to characterise and classify coal seams conforming to susceptibility towards spontaneous combustion)[J].矿业科学技术学报（英文版）,2022(01):75-88
A类：
coalfields,proxi,VMd,Tgsh,Tgign,categorise,hierarchal,coalfield
B类：
TGA,DSC,study,characterise,classify,seams,conforming,susceptibility,towards,spontaneous,combustion,Thermogravimetric,analysis,differential,scanning,calorimeter,technique,along,basic,characteristics,carried,out,eighty,samples,Indian,determine,propensity,behaviour,indicates,that,there,increase,mass,temperature,range,which,may,due,oxygen,adsorption,absorption,correlation,principal,component,states,mate,Mad,FR,VR,have,acceptable,experiments,results,Multiple,fixed,nonlinear,regression,shows,thermogravimetry,best,their,authors,proposed,four,groups,classification,depending,upon,moisture,volatile,matter,ignition,from,thermogravimetric,DTG,curve,using,clustering,classified,into,clusters,viz,very,highly,extremely,susceptible,moderately,poorly,observations,following,statistical,substantiate,sim,ilar,assessment
AB值：
0.452404
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