{"created":"2023-07-25T09:06:01.375865+00:00","id":4184,"links":{},"metadata":{"_buckets":{"deposit":"765910eb-c2bd-4565-904a-7c697faa96ef"},"_deposit":{"created_by":3,"id":"4184","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"4184"},"status":"published"},"_oai":{"id":"oai:toyama.repo.nii.ac.jp:00004184","sets":["496:556:559:560:587"]},"author_link":["56422","56423","56419","56420","11213"],"item_3_alternative_title_19":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Improvement of Transfer Coefficient Using Gas Bubble Intermixture"}]},"item_3_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1976-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"35","bibliographicPageStart":"31","bibliographicVolumeNumber":"27","bibliographic_titles":[{"bibliographic_title":"富山大学工学部紀要"}]}]},"item_3_description_15":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_3_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The objective of thi s paper is to determine the local and mean mass transfer coefficients between solid wall and liquid layer of bubble phase, and the \"gas hold up\" in gas bubble column, and then to discuss the application to the heat transfer equipment on the basis of those experimental results. In the experiment the distributions of local mass transfer coefficient as well as the mean mass transfer coefficient were measured by an electrochemical method under the diffusion control.\nResults 1. Mean mass transfer coefficient without gas bubble rate u_g increases exponentially and is proportional to ul^< 0.6>, as the liquid flow rate u_l increases (0.4 < u_l < 20 [cm/sec]). The coefficient with gas bubble is almost constant and agrees with the former in the range of 10 < u < 20. 2. As the gas bubble rate u_g decreases (U_g < 20[cm/sec]), the improvement ratio k_L/k_<LO> increases. In u_l = 0.4, it is recognized that maximum ratio amounts to sixteen. 3. \"Gas hold up\" ψ and k_L/k_<LO> were correlated by following equation. <k_L>/<k_<LO>>=2.15ψ^<012>(u_s/ul)^<0.5>","subitem_description_type":"Abstract"},{"subitem_description":"液中に気泡を分散させる気泡塔は，気・液接触装置として古くから使用され，熱的には潜熱移動および撹拌効果が加味されることから，最近では高温高熱流束をもつ原子炉の二次的冷却方法，つまり環境保全の立場から温排水の冷却法の一つとして注目され始め，その研究が盛んになってきた。\n気・液二相流動の様式のうち，気泡流動，気栓流動は物質移動操作および反応操作に利用されてきたが，気泡塔において気泡混入による液撹拌効果のため，泡沫層をなす液と壁，および層中に置かれた物体との間の移動係数が大きくなることから，伝熱装置としての利用が考えられるようになってきた。\nそこで，本研究の目的は，気泡塔の伝熱装置への応用であり，このことにより伝熱係数の増大による装置のコンパクト化，また冷却水不足の緩和に広くその利用が注目されると思われる。\n気泡塔の伝熱に関する従来の研究には，次のような報告がある。\nFair，J.R.およびKolbel，H.らは，塔内に垂直に円筒形発熱体を置き，その表面からの伝熱について報告し，吉留らやO.smigelishiも同じような方法で発熱体の形および多孔板の種類を変えて，水―空気系について実験を行ない，それらの影響について報告している。\nRuckensteinらは，塔壁の伝熱面と気泡を吹き込むノズルの間隔を変化させて，伝熱係数を測定し，伝熱面近傍からのみ気泡が吹き込まれた場合に最も大きな値を示すことを明らかにしている。\nまた，水科，宮下は，気泡塔内の発熱体の代わりに管群をを設置し，冷却装置として考え，気泡を含んだ泡沫層と壁面との間の伝熱係数を求め相関した。\n本研究では，従来の熱電対による伝熱係数測定では局所値を求めることが容易でないため，壁にうめ込んだ電極面における電極反応を利用する電気化学的方法を用いた。\n液流量および空気流量をいろいろ変化させて，気泡塔壁面の平均物質移動係数および局所物質移動係数を測定し，後者については多孔板からの高さ方向への変化を調べ，気泡混入時における安定性のある流動状態になるまでの助走距離についても調べた。\nまた，気泡塔内のガスホールドアップも測定し，各流動状態を加味して物質移動係数との相関関係を求めた。","subitem_description_type":"Abstract"}]},"item_3_description_40":{"attribute_name":"資源タイプ(DSpace)","attribute_value_mlt":[{"subitem_description":"Article","subitem_description_type":"Other"}]},"item_3_description_6":{"attribute_name":"引用","attribute_value_mlt":[{"subitem_description":"富山大学工学部紀要，27, 31-35.(1976)","subitem_description_type":"Other"}]},"item_3_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"11213","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"1000080019166","nameIdentifierScheme":"CiNii ID","nameIdentifierURI":"http://ci.nii.ac.jp/nrid/1000080019166"},{"nameIdentifier":"80019166","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://nrid.nii.ac.jp/nrid/1000080019166"}],"names":[{"name":"Miyashita, Hisashi"}]},{"nameIdentifiers":[{"nameIdentifier":"56422","nameIdentifierScheme":"WEKO"}],"names":[{"name":"SUGATAQ, Masuji"}]},{"nameIdentifiers":[{"nameIdentifier":"56423","nameIdentifierScheme":"WEKO"}],"names":[{"name":"KITA, Kazuhiko"}]}]},"item_3_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15099/00004178","subitem_identifier_reg_type":"JaLC"}]},"item_3_publisher_33":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"富山大学工学部"}]},"item_3_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00175872","subitem_source_identifier_type":"NCID"}]},"item_3_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03871339","subitem_source_identifier_type":"ISSN"}]},"item_3_subject_22":{"attribute_name":"国立国会図書館分類","attribute_value_mlt":[{"subitem_subject":"ZM2","subitem_subject_scheme":"NDLC"}]},"item_3_version_type_16":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"宮下, 尚"}],"nameIdentifiers":[{},{},{}]},{"creatorNames":[{"creatorName":"菅田, 益司"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"喜多, 和彦"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-02-16"}],"displaytype":"detail","filename":"Kokiyo_27_01_Page031to035.pdf","filesize":[{"value":"3.4 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"Kokiyo_27_01_Page031to035.pdf","url":"https://toyama.repo.nii.ac.jp/record/4184/files/Kokiyo_27_01_Page031to035.pdf"},"version_id":"d7909c19-75cd-42f2-bd54-bcc79780e770"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"気泡混入","subitem_subject_scheme":"Other"},{"subitem_subject":"移動係数の増進","subitem_subject_scheme":"Other"},{"subitem_subject":"気泡塔","subitem_subject_scheme":"Other"},{"subitem_subject":"気泡塔の伝熱装置","subitem_subject_scheme":"Other"},{"subitem_subject":"平均物質移動係数","subitem_subject_scheme":"Other"},{"subitem_subject":"局所物質移動係数","subitem_subject_scheme":"Other"},{"subitem_subject":"ガスホールドアップ","subitem_subject_scheme":"Other"},{"subitem_subject":"物質移動係数","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"気泡混入による移動係数の増進","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"気泡混入による移動係数の増進"}]},"item_type_id":"3","owner":"3","path":["587"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-09-28"},"publish_date":"2012-09-28","publish_status":"0","recid":"4184","relation_version_is_last":true,"title":["気泡混入による移動係数の増進"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-07-25T14:05:28.865084+00:00"}