Artikel Jurnal :: Kembali

Artikel Jurnal :: Kembali

Modeling of the crossing point temperature phenomenon in the low-temperature oxidation of coal

by Muksin Saleh, Yuswan Muharram, Yulianto S. Nugroho ([Publisher not identified] , 2017)

 Abstrak

In this study, modeling of the crossing point temperature (CPT) phenomenon in the low-temperature oxidation of coal was carried out using COMSOL Multiphysics®. Low-temperature oxidation can lead to spontaneous combustion of coal stockpiles. The CPT phenomenon was modeled with the kinetics data obtained from a prior laboratory experimental study. The coupling of the heat-transfer phenomenon through conduction and convection determined the thermal evolution model. In this case, coal received the initial heat of the oven temperature increases. As the coal temperature rose, the heat generated from oxidation was released into the environment via conduction and convection. Meanwhile, oxidation products and oxygen were transferred by convection and diffusion. The effects of moisture and the humidity were not considered. The outcomes of modeling were validated through comparison with the results of experimental tests, and the modeling result agreed well with the experiment tests, with temperature deviations of about 0.9%. The effects of airflow rate, oxygen concentration, porosity, and the initial temperature on low-temperature coal oxidation were also examined.

 Metadata

Jenis Koleksi : Artikel Jurnal
No. Panggil : J-Pdf
Entri utama-Nama orang :
Entri tambahan-Nama orang :
Subjek :
Penerbitan : [Place of publication not identified]: [Publisher not identified], 2017
Sumber Pengatalogan : LibUI eng rda
ISSN : 2087-2100
Majalah/Jurnal : International Journal of Technology (IJTECH)
Volume : Vol 8, No 1 2017 104-113
Tipe Konten : text
Tipe Media : computer
Tipe Carrier : online resource
Akses Elektronik : http://www.ijtech.eng.ui.ac.id/index.php/journal/article/view/4488
Institusi Pemilik : Universitas Indonesia
Lokasi :
  • Ketersediaan
  • Ulasan
  • Sampul
No. Panggil No. Barkod Ketersediaan
J-Pdf 03-20-954872103 TERSEDIA
Ulasan:
Tidak ada ulasan pada koleksi ini: 20449282
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