@article{oai:muroran-it.repo.nii.ac.jp:00009708,
 author = {SU, Faqiang and 蘇, 発強 and 濵中, 晃弘 and HAMANAKA, Akihiro and 板倉,  賢一 and ITAKURA, Ken-ichi and ZHANG, Wenyan and DEGUCHI, Gota and 出口, 剛太 and 佐藤,  孝紀 and SATOH, Kohki and TAKAHASHI, Kazuhiro and 髙橋, 一弘 and 児玉, 淳一 and KODAMA, Jun-ichi},
 journal = {Applied Energy},
 month = {Aug},
 note = {application/pdf, In this study, to better simulate underground coal gasification (UCG), an artificial coal seam was constructed to use as a simulated underground gasifier, which comprised coal blocks excavated from the coal seam. This study reports the process and results of three independently designed experiments using coaxial-hole and linking-hole UCG models: (a) a coaxial model using a coaxial pipeline as a gasification channel, (b) a coaxial model using the coaxial pipeline combined with a bottom cross-hole, and (c) a linking-hole model using a horizontal V-shaped cross-hole. In the present work, the fracturing activities and cavity growth inside the reactor were monitored with acoustic emission (AE) technologies. During the process, the temperature profiles, gas production rate, and gas content were measured successively. The results show that AE activities monitored during UCG process are significantly affected by operational variables such as feed gas rate, feed gas content, and linking-hole types. Moreover, the amount of coal consumed during UCG process were estimated using both of the stoichiometric approach and balance computation of carbon (C) based on the product gas contents. A maximum error of less than 10% was observed in these methods, in which the gas leakage was also considered. This demonstrates that the estimated results using the proposed stoichiometric approach could be useful for evaluating energy recovery during UCG.},
 pages = {82--92},
 title = {Monitoring and evaluation of simulated underground coal gasification in an ex-situ experimental artificial coal seam system},
 volume = {223},
 year = {2018},
 yomi = {ハマナカ, アキヒロ and イタクラ, ケンイチ and デグチ, ゴウタ and サトウ, コウキ and タカハシ, カズヒロ and コダマ, ジュンイチ}
}