Investigations of Sea Spray Icing on Lighthouses and Ice Adhesion Tests on Hydrophilic and Hydrophobic Pliable Polymer Sheets for Protection against Sea Spray Icing

• Project/Area Number: 19310119
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Natural disaster science
• Research Institution: Hokkaido University of Education
• Principal Investigator: OZEKI Toshihiro Hokkaido University of Education, 教育学部, 准教授 (20301947)
• Co-Investigator(Kenkyū-buntansha): KOSE Katsumi 筑波大学, 数理物質科学研究科, 教授 (60186690) ; IZUMIYAMA Koh 独立行政法人海上技術安全研究所, 流体部門氷海技術研究グループ, グループ長 (40358403) ; NOUJOU Ayumu 北海道教育大学, 教育学部, 准教授 (20311524)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000); Fiscal Year 2009: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000); Fiscal Year 2008: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000); Fiscal Year 2007: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
• Keywords: 海洋物理・陸水学 / 自然災害 / 着氷 / 可視化 / 構造・機能材料 / MRI / 高機能性材料

Research Abstract

Heavy sea spray icing on lighthouses severely affects their maintenance in the northern harbors that face the Sea of Japan. We tested hydrophilic and hydrophobic pliable sheets that can be used to wrap small lighthouses.
We investigated the wet growth of spray ice through a cold experiment conducted using an ice model basin. Experiments were conducted to reveal the sea spray icing characteristics of hydrophobic and hydrophilic surfaces. Deicing was easy for the both pliable sheets due to the low adhesion strength of saline ice and the exfoliation. Field observation was carried out using two dummy lighthouses built on the breakwater. We developed a method employing static ropes in order to withstand the fluttering and green water through one entire winter. The effect of the high hydrophilic sheet was verified using growth rate of sea spray icing. In the case of sea spray ice, the high hydrophilic surface worked effectively because of the low adhesion strength of saline ice.

Research Products

• [Journal Article] Field Tests of Superhydrophilic Pliable Sheet for Protection Against Sea Spray Icing. (2010)
  • Author(s): Ozeki, T., Adachi, S., Wako, D.
  • Journal Title: Proceedings of the 20th International Offshore and Polar Engineering Conference 2010-TPC-1193 Pages: 6-6
  • Peer Reviewed
• [Journal Article] Field Observation of Sea Spray Icing on Lighthouses and Ice Adhesion Test of Superhydrophilic Pliable Sheet for Deicing. (2009)
  • Author(s): Ozeki, T., Tamate, Y., Adachi, S., Izumiyama, K., Tazawa, T.
  • Journal Title: Proceedings of 13th International Workshop on Atmospheric Icing of Structures Pages: 4-4
  • Peer Reviewed
• [Journal Article] Development of a compact magnetic resonance imaging system for a cold room. (2009)
  • Author(s): Adachi, S., Ozeki, T., Katsumi, K.
  • Journal Title: Review of Scientific Instruments 80 Pages: 054701-4
  • Peer Reviewed
• [Journal Article] Unique lake ice phenomena observed in Lake Inawashiro, Japan : Spray ice and ice balls. (2009)
  • Author(s): Kawamura, T., Ozeki, T., Wakabayashi, H., Koarai, M.
  • Journal Title: J.Glaciol. 55 Pages: 939-942
  • Peer Reviewed
• [Journal Article] Field Observation of Sea Spray Icing on Lighthouses and Ice Adhesion Test of Superhydrophilic Pliable Sheet for Deicing (2009)
  • Author(s): 尾関俊浩
  • Journal Title: Proceedings of 13th International Workshop on At mospheric Icing of Structures Pages: 4-4
• [Journal Article] 小型防波堤灯台への難着氷膜材取り付け手法に関する実地試験 (2009)
  • Author(s): 尾関俊浩
  • Journal Title: 寒地技術論文・報告集 23 Pages: 5-5
  • Peer Reviewed
• [Journal Article] Development of a compact magnetic resonance imaging system for a cold room (2009)
  • Author(s): 安達聖
  • Journal Title: Review of Scientific Instruments 80 Pages: 4-4
  • Peer Reviewed
• [Journal Article] Unique lake ice phenomena observed in Lake Inawashiro, Japan : Spray ice and ice balls (2009)
  • Author(s): 河村俊行
  • Journal Title: Journal of Glaciology 55 Pages: 939-942
  • Peer Reviewed
• [Journal Article] 塩水を用いた湿潤着氷のブライン排水路の再現実験 (2008)
  • Author(s): 坂本拓麻
  • Journal Title: 北海道の雪氷 27 Pages: 9-12
  • Peer Reviewed
• [Journal Article] Study of Network Image of a Snowpack Microstructure For Quantification Using a Morphorometrical Method (2008)
  • Author(s): 尾関俊浩
  • Journal Title: Proceedings of International Snow Science Work shop 2008 Pages: 1016-1018
  • Peer Reviewed
• [Journal Article] 積雪のMRI3次元画像と断面観測の比較 (2008)
  • Author(s): 安達聖
  • Journal Title: 寒地技術論文・報告集 24 Pages: 120-125
  • Peer Reviewed
• [Journal Article] 新設の低温微風速恒温室と低温室用MRI装置を用いた雪氷実験に関する一考 (2008)
  • Author(s): 尾関俊浩
  • Journal Title: 寒地技術論文・報告集 24 Pages: 411-414
  • Peer Reviewed
• [Journal Article] NMR Imaging of Sea Spray Icing and Ice Adhesion. (2007)
  • Author(s): Ozeki, T., Yamamoto, R., Adachi, S., Kose, K.
  • Journal Title: Proceedings of 12th International Workshop on Atmospheric Icing of Structures Pages: 6-6
  • Peer Reviewed
• [Journal Article] NMR Imaging of Sea Spray Icing and Ice Adhesion (2007)
  • Author(s): 尾関俊浩, 巨瀬勝美
  • Journal Title: Proceedings of 12th International Workshop on Atmospheric Icing of Structures Pages: 6-6
• [Journal Article] 低温室用コンパクトMRIのための雪氷用パルスシーケンスの開発-強制回復法とデュアルスキャン- (2007)
  • Author(s): 安達聖, 尾関俊浩, 巨瀬勝美
  • Journal Title: 寒地技術論文・報告集 23 Pages: 140-144
  • Peer Reviewed
• [Presentation] 雪氷のNMRイメージング-積雪内の水の可視化- (2010)
  • Author(s): 尾関俊浩
  • Organizer: 積雪の構造と変質に関するワークショップ
  • Place of Presentation: 長岡
  • Year and Date: 2010-03-19
• [Presentation] Field Tests of Superhydrophilic Pliable Sheet for Protection Against Sea Spray Icing. (2010)
  • Author(s): 尾関俊浩, 安達聖, D.Wako
  • Organizer: 20th International Offshore and Polar Engineering Conference
  • Place of Presentation: China
• [Presentation] Laboratory experiment of sea spray ice accretion on hydrophilic and hydrophobic pliable sheets. (2010)
  • Author(s): 尾関俊浩, 坂本拓麻, 安達聖, D.Wako, K.Izumiyama
  • Organizer: International Symposium on Snow, Ice and Humanity in a Changing Climate
  • Place of Presentation: Sapporo
• [Presentation] 防波堤灯台に成長する海水飛沫着氷の観測と難着氷シートによる着氷軽減実験 (2010)
  • Author(s): 尾関俊浩,安達聖,田澤辰典
  • Organizer: 日本自然災害学会学術講演会
  • Place of Presentation: 岐阜
• [Presentation] 氷海水槽における海水飛沫着氷の実験-親水性と撥水性シート材料- (2010)
  • Author(s): 尾関俊浩,坂本拓麻,安達聖,若生大輔
  • Organizer: 雪氷研究大会
  • Place of Presentation: 仙台
• [Presentation] 三次元ファントムを用いたMRIにおける静磁場電流シミング手法の開発 (2009)
  • Author(s): 繁木良介
  • Organizer: 第48回NMR討論会
  • Place of Presentation: 福岡
  • Year and Date: 2009-11-10
• [Presentation] 三次元ファントムを用いた電流シミング手法の開発 (2009)
  • Author(s): 繁木良介
  • Organizer: 第37回日本磁気共鳴医学会大会
  • Place of Presentation: 横浜
  • Year and Date: 2009-10-02
• [Presentation] MRIの雪氷研究への応用-ぬれ雪中の水の分布撮像の試み- (2009)
  • Author(s): 安達聖
  • Organizer: 第13回NMRマイクロイメージング研究会
  • Place of Presentation: 田町
  • Year and Date: 2009-07-25
• [Presentation] 三次元ファントムを用いた静磁場電流シミング手法の開発 (2009)
  • Author(s): 繁木良介
  • Organizer: 第13回NMRマイクロイメージング研究会
  • Place of Presentation: 田町
  • Year and Date: 2009-07-25
• [Presentation] 多項式展開を用いた3次元MR画像歪み補正法の開発 (2009)
  • Author(s): 半田晋也
  • Organizer: 第13回NMRマイクロイメージング研究会
  • Place of Presentation: 田町
  • Year and Date: 2009-07-25
• [Presentation] Field Observation of Sea Spray Icing on Lighthouses and Ice Adhesion Test of Superhydrophilic Pliable Sheet for Deicing. (2009)
  • Author(s): 尾関俊浩, Y.Tamate, 安達聖, K.Izumiyama, 田澤辰典
  • Organizer: 13th International Workshop on Atmospheric Icing of Structures
  • Place of Presentation: Swiss
• [Presentation] Development of a compact MRI system for a low temperature(-5 degree) room (2009)
  • Author(s): 安達聖
  • Organizer: 17th International Society for Magnetic Resonance in Medicine
  • Place of Presentation: ホノルル(アメリカ合衆国)
• [Presentation] Visualization of liquid water distribution in wet snow using a compact MRI system (2009)
  • Author(s): 安達聖
  • Organizer: 10th International Conference on Magnetic Resonance Microscopy
  • Place of Presentation: ウェストイエローストーン(アメリカ合衆国)
• [Presentation] Optimization of a planar gradient coil set using a genetic algorithm (2009)
  • Author(s): 半田晋也
  • Organizer: 10th International Conference on Magnetic Resonance Microscopy
  • Place of Presentation: ウェストイエローストーン(アメリカ合衆国)
• [Presentation] Static magnetic field shimming for MRI using a 3D geometrical phantom (2009)
  • Author(s): 繁木良介
  • Organizer: 10th International Conference on Magnetic Resonance Microscopy
  • Place of Presentation: ウェストイエローストーン(アメリカ合衆国)
• [Presentation] Field Observation of Sea Spray Icing on Lighthouses and Ice Adhesion Test of Superhydrophilic Pliable Sheet for Deicing (2009)
  • Author(s): 尾関俊浩
  • Organizer: 13th International Workshop on Atmospheric Icing of Structures
  • Place of Presentation: アンデルマット(スイス)
• [Presentation] 防波堤灯台に成長する海水飛沫着氷の観測-浜益北防波堤2007-2008, 2008-2009冬期- (2009)
  • Author(s): 尾関俊浩
  • Organizer: 雪氷研究大会(日本雪氷学会・日本雪工学会)
  • Place of Presentation: 札幌
• [Presentation] MRIによるぬれ雪中の水の分布撮像の試み-水頭の3次元撮像- (2009)
  • Author(s): 安達聖
  • Organizer: 雪氷研究大会(日本雪氷学会・日本雪工学会)
  • Place of Presentation: 札幌
• [Presentation] 海水飛沫着氷のブライン形成に関する実験的研究 (2009)
  • Author(s): 坂本拓麻
  • Organizer: 雪氷研究大会(日本雪氷学会・日本雪工学会)
  • Place of Presentation: 札幌
• [Presentation] 三次元ファントムを用いたMRIにおける青磁場電流シミング手法の開発 (2009)
  • Author(s): 尾関俊浩
  • Organizer: 第25回寒地技術シンポジウム
  • Place of Presentation: 札幌
• [Presentation] 積雪のMRI3次元画像と断面観測の比較 (2008)
  • Author(s): 安達聖
  • Organizer: 第24回寒地技術シンポジウム
  • Place of Presentation: 札幌
  • Year and Date: 2008-11-26
• [Presentation] 新設の低温微風速恒温室と低温室用MRI装置を用いた雪氷実験に関する一考 (2008)
  • Author(s): 尾関俊浩
  • Organizer: 第24回寒地技術シンポジウム
  • Place of Presentation: 札幌
  • Year and Date: 2008-11-26
• [Presentation] Development of a Compact MRI System in Cold Room for Imaging of Structure of Snow and Ice (2008)
  • Author(s): 安達聖
  • Organizer: International Snow Science Workshop 2008
  • Place of Presentation: ウィスラー(カナダ)
  • Year and Date: 2008-09-21
• [Presentation] Study of Network Image of a Snowpack Microstructure For Quantification Using a Morphorometrical Method (2008)
  • Author(s): 尾関俊浩
  • Organizer: International Snow Science Workshop 2008
  • Place of Presentation: ウィスラー(カナダ)
  • Year and Date: 2008-09-21
• [Presentation] MRマイクロスコピーの雪氷研究への応用 (2008)
  • Author(s): 安達聖
  • Organizer: 第12回NMRマイクロイメージング研究会
  • Place of Presentation: 東京
  • Year and Date: 2008-07-26
• [Presentation] 塩水を用いた湿潤着氷のブライン排水路の再現実験 (2008)
  • Author(s): 坂本拓麻
  • Organizer: 日本雪氷学会北海道支部研究発表会
  • Place of Presentation: 札幌
  • Year and Date: 2008-06-10
• [Presentation] 低温室用コンパクトMRIのための雪氷用パルスシーケンスの開発-強制回復法とデュアルスキャン- (2007)
  • Author(s): 安達聖, 尾関俊浩, 巨瀬勝美
  • Organizer: 寒地技術シンポジウム2007
  • Place of Presentation: 横浜
  • Year and Date: 2007-12-13
• [Presentation] NMR Imaging of Sea Spray Icing and Ice Adhesion (2007)
  • Author(s): 尾関俊浩, 巨瀬勝美
  • Organizer: 12th International Workshop on Atmospheric Icing of Structures
  • Place of Presentation: 横浜
  • Year and Date: 2007-10-11
• [Presentation] 低温室用コンパクトMRIによる雪氷の可視化-その2-強制回復パルスシーケンスの導入 (2007)
  • Author(s): 安達聖, 尾関俊浩, 巨瀬勝美
  • Organizer: 日本雪氷学会全国大会
  • Place of Presentation: 富山
  • Year and Date: 2007-09-27
• [Presentation] Development of a compact MRI system in -5℃ cold room for visualization of sea-spray icing (2007)
  • Author(s): 尾関俊浩, 巨瀬勝美
  • Organizer: 9th International Conference on Magnetic Resonance Microscopy
  • Place of Presentation: ドイツ・アーヘン
  • Year and Date: 2007-09-04
• [Presentation] 雪氷の三次元構造計測のためのMRIパルスシーケンスの開発 (2007)
  • Author(s): 安達聖, 尾関俊浩, 巨瀬勝美
  • Organizer: 第11回NMRマイクロイメージング研究会
  • Place of Presentation: 東京
  • Year and Date: 2007-08-06
• [Presentation] Development of a Compact MRI System in -5℃ Cold Room for Visualization of Sea-spray Icing. (2007)
  • Author(s): 尾関俊浩, 安達聖, T.Haishi, K.Kose, S.Handa
  • Organizer: 9th International Conference of Magnetic Resonance Microscopy
  • Place of Presentation: Germany
• [Presentation] NMR Imaging of Sea Spray Icing and Ice Adhesion Tests of Pliable Polymer Sheets for Deicing. (2007)
  • Author(s): 尾関俊浩, R.Yamamoto, 安達聖, K.Kose
  • Organizer: 12th International Workshop on Atmospheric Icing of Structures
  • Place of Presentation: Yokohama
• [Remarks]
  • URL: http://kensoran.hokkyodai.ac.jp/huehp/KgApp?kyoinId=ymibggggggo