An Experimental Study on the Combustion Kinetics and Ash Melting Characteristics of Two Kinds of South Korean Coal Gangue using TGA and TMA

2021 ◽  
Vol 26 (2) ◽  
pp. 40-52
Author(s):  
Yijie Zeng ◽  
Kyeong-Ho Kim ◽  
Viet Thieu Trinh ◽  
Dongfang Li ◽  
Chung-Hwan Jeon
Keyword(s):  
Experimental Study ◽  
Coal Gangue ◽  
Combustion Kinetics ◽  
South Korean ◽  
Melting Characteristics ◽  
Ash Melting

Experimental Study on MSW Incineration Fly Ash Melting Characteristics

2014 ◽  
Vol 955-959 ◽  
pp. 2949-2952
Author(s):  
Jun Zhao ◽  
Shu Zhong Wang ◽  
Zhi Qiang Wu ◽  
Lin Chen ◽  
Hai Yu Meng
Keyword(s):  
Experimental Study ◽  
Iron Oxide ◽  
Fly Ash ◽  
Municipal Solid Waste ◽  
Melting Temperature ◽  
Calcium Oxide ◽  
Reducing Atmosphere ◽  
Msw Incineration ◽  
Melting Characteristics ◽  
Ash Melting

This paper studies the effects of calcium oxide and iron oxide in municipal solid waste (MSW) incineration fly ash on the melting temperature of fly ash by using different samples. In addition, this paper also studied the variation of fly ash melting temperature in oxidizing and reducing atmosphere by experiment.

Effect of High-Efficiency Flux on the Melting Characteristics of Coal Ash

2013 ◽  
Vol 295-298 ◽  
pp. 3094-3097 ◽  
Author(s):  
Han Xu Li ◽  
Zi Li Zhang ◽  
Yong Xin Tang
Keyword(s):  
Melting Temperature ◽  
Coal Gasification ◽  
High Efficiency ◽  
Coal Ash ◽  
Fusion Temperature ◽  
Gasification Process ◽  
Ash Fusion Temperature ◽  
Melting Characteristics ◽  
Temperature Detector ◽  
Ash Melting

High-efficiency flux was developed to lower the ash fusion temperature of coal LQ and reduce the addition content in coal gasification process. The effect of high-efficiency flux on the coal ash melting temperature and mineral transformation were studied by ash fusion temperature detector and XRD (X-ray diffractometer) respectively in reducing atmosphere. Compared with limestone flux, the high-efficiency flux can decrease the coal ash melting temperature effectively with half addition content. The ash flow temperature (FT) of coal LQ can be lowered to less than 1350°C with the addition of 3% high-efficiency flux ,while limestone flux need to add more than 8% to reach to this temperature. With the high-efficiency flux added, cordierite, anorthite and Mg-Fe-Al oxide were formed at high temperature, which is the main reason to sharply decrease the ash fusion temperature.

scholarly journals The Impact of Evidence Type on Police Investigators’ Perceptions of Suspect Culpability and Evidence Reliability

2020 ◽  
Vol 228 (3) ◽  
pp. 188-198
Author(s):  
Minhwan Jang ◽  
Timothy J. Luke ◽  
Pär-Anders Granhag ◽  
Aldert Vrij
Keyword(s):  
Experimental Study ◽  
Repeated Measures ◽  
Eyewitness Testimony ◽  
General Information ◽  
Dna Fingerprint ◽  
South Korean ◽  
Legal Implications ◽  
Evidence Type ◽  
The Impact ◽  
Crime Reports

Abstract. In a repeated-measures experimental study, we examined how evidence type influences police investigators’ beliefs about (a) suspect’s culpability and (b) reliability of incriminating evidence. South Korean detectives ( N = 202) read four crime reports including general information about a crime and a suspect. In the general case information, one piece of critical and several pieces of noncritical evidence collected during the investigation were presented. Officers read four simulated reports of crimes, and in each report, they were given one piece of evidence linking the suspect to the crime. We manipulated the critical evidence identifying the suspect with four evidence types: CCTV, DNA, fingerprint, and eyewitness testimony. We found that evidence type influenced detectives’ judgments about suspect’s culpability and evidence reliability, such that when eyewitness (vs. CCTV, DNA, fingerprint) evidence was given as critical evidence, officers were more likely to think that the suspect was less culpable and that the evidence was less reliable. Theoretical and legal implications of these results are discussed.

Experimental study of the effects of stacking modes on the spontaneous combustion of coal gangue

2019 ◽  
Vol 123 ◽  
pp. 39-47 ◽  
Author(s):  
Yuguo Wu ◽  
Xiaoyang Yu ◽  
Shengyong Hu ◽  
He Shao ◽  
Qi Liao ◽  
...  
Keyword(s):  
Experimental Study ◽  
Spontaneous Combustion ◽  
Coal Gangue ◽  
Spontaneous Combustion Of Coal
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