Basic Research on Large Flow Rate Micro Channel Gas Liquid Two Phase Flow

2007 Fiscal Year Final Research Report Summary

• Project/Area Number: 18560192
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: The University of Tokyo
• Principal Investigator: SHIKAZONO Naoki The University of Tokyo, Graduate School of Engineering, Associate Professor (30345087)
• Project Period (FY): 2006 – 2007
• Keywords: Energy Efficiency / Energy Conservation / Fuel Cell / Heat pump / Micro Reactor

Research Abstract

In the present study, liquid entrainment limit was investigated experimentally by air-water and air-FC3283 experiment. The triangle and trapezoidal cross section micro channels were used. Channel length, flow rate, inlet quality were varied for the parametric survey. The weight of the entrained liquid droplets was measured at the gas phase exit to evaluate the liquid entrainment limit. The liquid entrainment limit is defined as the maximum flow rate when 1% of the inlet liquid flow rate was entrained as liquid droplets in the gas phase. As a result, the liquid entrain limit was correlated well using liquid film Reynolds number, Weber number, and modified Bond number. Finally, dimensionless correlations for predicting gas-liquid separation limits are proposed.

Research Products

• [Journal Article] 表面張力を利用した小型気液分離器の開発 (2008)
  • Author(s): 東隆平, 鹿園直毅, 岩田博
  • Journal Title: 日本機械学会論文集(B) (掲載確定)(印刷中)
  • Description: 「研究成果報告書概要(和文)」より
  • Peer Reviewed
• [Journal Article] Development of Compact Liquid Gas Separator Using Surface Tension (2008)
  • Author(s): Azuma R, Shikazono, N., Iwata, H
  • Journal Title: Transactions of the Japan Society of Mechanical Engineers, Series B (in press)
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] 表面張力を用いた気液分離器の相分離特性に関する研究 (2007)
  • Author(s): 東隆平, 鹿園直毅, 岩田博, 度会和孝
  • Organizer: 第44回日本伝熱シンポジウム
  • Place of Presentation: 長崎
  • Year and Date: 20070522-25
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Research on the phase separation characteristics of gas-liquid separator using surface tension (2007)
  • Author(s): Azuma R, Shikazono, N., Iwata, H, Watarai, K.
  • Organizer: 44th National Heat Transfer Symposium of J
  • Place of Presentation: Nagasaki
  • Year and Date: 20070522-25
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] 表面張力を利用したコンパクト気液分離器の開発第一報 気液分離機構の基礎検討 (2006)
  • Author(s): 鹿園直毅, 向笠雄介, 東隆平, 岩田博, 度会和孝
  • Organizer: 第40回空気調和・冷凍連合講演会
  • Place of Presentation: 東京
  • Year and Date: 20060419-21
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] 表面張力を利用したコンパクト気液分離器の開発第二報 コンパクト気液分離器の実用化検討 (2006)
  • Author(s): 岩田博, 小森徹矢, 度会和孝, 鹿園直毅
  • Organizer: 第40回空気調和・冷凍連合講演会
  • Place of Presentation: 東京
  • Year and Date: 20060419-21
  • Description: 「研究成果報告書概要(和文)」より
• [Presentation] Development of Compact Gas-Liquid Separator Using Surface Tension : Part 1 Basic Investigation of Gas-Liquid Separation Mechanism (2006)
  • Author(s): Shikazono, N., Mukasa, Y, Azuma, R. Iwata, H. and Watarai, K.
  • Organizer: 40th Japanese Joint Conf. on Air-conditioning and Refrigeration
  • Place of Presentation: Tokyo
  • Year and Date: 20060419-21
  • Description: 「研究成果報告書概要(欧文)」より
• [Presentation] Development of Compact Gas-Liquid Separator Using Surface Tension : Part 2 Investigation of the Applicability of Compact Gas-Liquid Separator (2006)
  • Author(s): Iwata, H., Komori, T., Watarai, K. and Shikazono, N.
  • Organizer: 40th Japanese Joint Conf. on Air-conditioning and Refrigeration
  • Place of Presentation: Tokyo
  • Year and Date: 20060419-21
  • Description: 「研究成果報告書概要(欧文)」より
• [Patent(Industrial Property Rights)] 特許 (2006)
  • Inventor(s): 度会, 岩田, 中尾, 小森, 鹿園
  • Industrial Property Rights Holder: 度会, 岩田, 中尾, 小森, 鹿園
  • Industrial Property Number: 特願2006-201276
  • Filing Date: 2006-06-27
  • Description: 「研究成果報告書概要(和文)」より