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Crack coke in layer heat transfer analysis; Kiretsu no shinten wo tomonau kokusu sonai dennetsu kaiseki

Abstract

The research method heat transfer process by physical change of the coke by heat transfer from furnace wall in the retorting of coal seam filled in coke oven and flow of the gas is very complicated chamber oven style, and it does not become clear. For the purpose of the elucidation of in layer crack generation and progress mechanism, he is (1) The expansion of the softening cohesive layer. (2) Programming rate dependence of the heat. Mechanical property value on coal seam and semi- coke layer in the retorting. (3) The creep property of softening cohesive layer and semi- coke layer. (4) The setting of crack growth condition of stress intensity factor in crack tip and fracture property value of the coke by the comparison. (5) By considering the radiative heat transfer in the crack, coke in layer thermal stress analysis was carried out. The validity of these analytical result it was confirmed by the comparison with the experimental result of crack growth. Deformation behavior in the small dry distillation furnace, and crack growth mechanism in the coke layer became clear, and the prediction of the stress as micro-crack cause of generation of heating surface side coke surface and inside  More>>
Authors:
Aoki, Hideyuki [1] 
  1. Tohoku University, Miyagi (Japan)
Publication Date:
Mar 05, 1999
Product Type:
Journal Article
Reference Number:
EDB-00:026803
Resource Relation:
Journal Name: Kagaku Kogaku (Chemical Engineering); Journal Volume: 63; Journal Issue: 3; Other Information: PBD: 5 Mar 1999
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CHEMICAL COMPOSITION; CHEMISTRY; CHEMICAL REACTIONS; CHEMICAL ENGINEERING; CHEMICAL INDUSTRY
OSTI ID:
20029981
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: ISSN 0375-9253; KKGKA4; TRN: JN9953308
Availability:
Chemical Engineering of Japan
Submitting Site:
NEDO
Size:
page(s) 8
Announcement Date:
Jun 05, 2000

Citation Formats

Aoki, Hideyuki. Crack coke in layer heat transfer analysis; Kiretsu no shinten wo tomonau kokusu sonai dennetsu kaiseki. Japan: N. p., 1999. Web.
Aoki, Hideyuki. Crack coke in layer heat transfer analysis; Kiretsu no shinten wo tomonau kokusu sonai dennetsu kaiseki. Japan.
Aoki, Hideyuki. 1999. "Crack coke in layer heat transfer analysis; Kiretsu no shinten wo tomonau kokusu sonai dennetsu kaiseki." Japan.
@misc{etde_20029981,
title = {Crack coke in layer heat transfer analysis; Kiretsu no shinten wo tomonau kokusu sonai dennetsu kaiseki}
author = {Aoki, Hideyuki}
abstractNote = {The research method heat transfer process by physical change of the coke by heat transfer from furnace wall in the retorting of coal seam filled in coke oven and flow of the gas is very complicated chamber oven style, and it does not become clear. For the purpose of the elucidation of in layer crack generation and progress mechanism, he is (1) The expansion of the softening cohesive layer. (2) Programming rate dependence of the heat. Mechanical property value on coal seam and semi- coke layer in the retorting. (3) The creep property of softening cohesive layer and semi- coke layer. (4) The setting of crack growth condition of stress intensity factor in crack tip and fracture property value of the coke by the comparison. (5) By considering the radiative heat transfer in the crack, coke in layer thermal stress analysis was carried out. The validity of these analytical result it was confirmed by the comparison with the experimental result of crack growth. Deformation behavior in the small dry distillation furnace, and crack growth mechanism in the coke layer became clear, and the prediction of the stress as micro-crack cause of generation of heating surface side coke surface and inside became possible. The numerical analysis method of the above crack growth mechanism greatly contributes to the prediction of dry distillation heating requirement and grain size of coke lump which is an index to the coke quality. Heat on material process which is accompanied by the solidification. Contraction from the softening and material migration phenomenon have been clarified by the creative research method, while this research is directly useful for energy saving of pig ironmaking process of becoming one of the ringleaders of the CO{sub 2} generation. (translated by NEDO)}
journal = []
issue = {3}
volume = {63}
journal type = {AC}
place = {Japan}
year = {1999}
month = {Mar}
}