Thermal properties of coal during low temperature oxidation using a grey correlation method

Simple item page
dc.cclicenceCC-BY-NCen
dc.contributor.authorTian, Yuan
dc.contributor.authorRen, S.J.
dc.contributor.authorWang, C.P.
dc.contributor.authorXiao, Y.
dc.contributor.authorDeng, J.
dc.contributor.authorSong, Jia-Jia
dc.contributor.authorCheng, X.J.
dc.contributor.authorSun, G.F.
dc.date.acceptance2019-09-24
dc.date.accessioned2019-11-26T15:25:36Z
dc.date.available2019-11-26T15:25:36Z
dc.date.issued2019-10-14
dc.descriptionThe file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.en
dc.description.abstractThe low temperature oxidation of coal is a contradictory and unified dynamic process of coexisting mass and heat transfer. The thermophysical properties are crucial during coal spontaneous combustion. In the current paper, the variations of moisture, ash, volatiles, fixed carbon and thermophysical properties (thermal diffusivity, specific heat and thermal conductivity) of three coal samples from 30 °C to 300 °C were studied, and their grey correlation was analyzed. The results indicated that with the increase of temperature, the free moisture of Coals A and B decreased first but then increased, while the free moisture of Coal C kept decreasing without a later increase. The variation of surface moisture was consistent with that of free moisture. The trend of volatiles and fixed carbon was completely the opposite, showing a significant negative correlation. Ash was less affected by temperature. Along with the rise of temperature, the thermal diffusivity of three coal samples decreased first but later increased, and the specific heat was always in a state of increasing. The change in thermal conductivity was mainly affected by specific heat. By calculating the gray correlation degree, the major factors affecting the thermophysical properties were obtained.en
dc.funderNo external funderen
dc.identifier.citationRen, S.J., Wang, C.P., Xiao, Y., Deng, J., Tian, Y., Song, J.J., Cheng, X.J., Sun, G.F. (2020) Thermal properties of coal during low temperature oxidation using a grey correlation method. Fuel, 260, 116287.en
dc.identifier.doihttps://doi.org/10.1016/j.fuel.2019.116287
dc.identifier.issn0016-2361
dc.identifier.urihttps://dora.dmu.ac.uk/handle/2086/18874
dc.language.isoenen
dc.peerreviewedYesen
dc.publisherElsevieren
dc.researchinstituteInstitute of Energy and Sustainable Development (IESD)en
dc.subjectHeat transferen
dc.subjectCoal spontaneous combustionen
dc.subjectMoistureen
dc.subjectThermal conductivityen
dc.subjectGrey correlationen
dc.titleThermal properties of coal during low temperature oxidation using a grey correlation methoden
dc.typeArticleen

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Revised Manuscript clean and final version.pdf
Size:
548.65 KB
Format:
Adobe Portable Document Format
Description:
Final manuscript accepted by the journal before publication typesetting
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
4.2 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

School of Engineering and Sustainable Development