AN ANALYTICAL CONSIDERATION AS TO HEAT TRANSFER, HEAT STRESS-STRAIN BEHAVIOR OF A LARGE SCALE COAL KILN DURING CARBONIZATION PROCESS AND THE OKUTADAMI COAL KILN

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  • Kuroda Shigenori
    社団法人 土木学会 電源開発 (株) 関東支社土木センター

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  • 流木炭窯の大規模化に伴う炭化過程における熱伝導・熱応力挙動の解析的考察と奥只見大窯
  • リュウボク スミガマ ノ ダイキボカ ニ トモナウ タンカ カテイ ニ オケル

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Abstract

To scale up the traditional clay coal kilns as they are for the purpose of carbonizing voluminous driftwoods in reservoirs can be questionable from the viewpoints of the structural stability and durability, because of taking place of cracks, exfoliation and deteriorations caused by high heat expansion and its shrinkage through cyclic heat process. In the paper, numerical studies as to heat transfer, stressstrain and deformation behaviors during carbonization process using a large scale kiln model will be examined in order to refer to the problems and their solutions on the design antecedently. Finally, the large scale OKUTADAMI kiln applied above lessons learnt is constructed and operated satisfactorily

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