Researcher Database

NameYASUNAGA Takeshi
DepartmentInstitute of Ocean Energy
Job TitleAssistant Professor Degree Obtained
E-mailyasunagaioes.saga-u.ac.jp
Homepagehttp://www.ioes.saga-u.ac.jp/jp/

Detailed Information

Research Field/Keywords for Research Field

  • Thermal Engineering, Ocean Thermal Energy Conversion (OTEC), Hot-spring Water Thermal Energy Conversion, Seawater Desalination, Heat Exchangers, Deep seawater, Exergy

Education

  • 2003/03, Energy and Mechenical Engineering, Graduated
  • 2005/03, Master Course, Completed
  • 2008/03, Doctor Course, Completed

Employment Experience

  • 2008/04 - 2013/03 Technical Staff Mitsubishi Heavy Industries Ltd
  • 2013/04 - 2015/03 Senior Engineer Mitsubishi Heavy Industries Ltd
  • 2015/04 -  *  Assistant Professor, Institute of Ocean Energy, Institute of Ocean Energy, Saga University (IOES), Saga University

Field of Specialization

  • Thermal engineering, Energy engineering, Design and evaluation of sustainable and environmental conscious system, Fluid engineering, Computational science

Research Topics and Results

Books

  • 造水技術ハンドブック<追補版>; 2014/04
    ANNOUNCEMENT INFO.; , 93-95
    AUTHOR; 

Original Articles

  • Preliminary design of a 100 MW-net ocean thermal energy conversion (OTEC) power plant study case: Mentawai island, Indonesia; 2019/02
    ANNOUNCEMENT INFO.; Journal of Marine Science and Technology, 1-21
    AUTHOR; Ristiyanto Adiputra, Tomoaki Utsunomiya, Jaswar Koto, Takeshi Yasunaga, Yasuyuki Ikegami
  • Water Level Control of After Condenser in a Spray Flash Desalination System Using Stochastic Process; 2019/01
    ANNOUNCEMENT INFO.; Transactions of the Institute of Systems, Control and Information Engineers, 32, 1, 24-31
    AUTHOR; Yoshitaka Matsuda, Yoshihiro Eishima, Satoru Goto, Takenao Sugi,Takafumi Morisaki, Takeshi Yasunaga and Yasuyuki Ikegami
  • Simultaneous Regulation of Multiple Flow Rates for Power Generation Control of OTEC Plant Using Double-stage Rankine Cycle; 2018/09
    ANNOUNCEMENT INFO.; Proc. SICE Annual Conference 2018, 983-988
    AUTHOR; Yoshitaka Matsuda, Riku Oouchida, Takenao Sugi, Satoru Goto, Takafumi Morisaki, Takeshi Yasunaga and Yasuyuki Ikegami
  • Basic Heat Exchanger Performance Evaluation Method on OTEC; 2018/04
    ANNOUNCEMENT INFO.; Journal of Marine Science and Engineering, 6, 2, 32
    AUTHOR; Takeshi Yasunaga, Takafumi Noguchi, Takafumi Morisaki and Yasuyuki Ikegami
  • Study of available thermal energy on OTEC; 2018/03
    ANNOUNCEMENT INFO.; Transactions of the JSME (in Japanese), 84, 859, 17 - 00398-17-00398
    AUTHOR; YASUNAGA Takeshi;MORISAKI Takafumi;IKEGAMI Yasuyuki
  • Ocean Thermal Energy Conversion Using Double-Stage Rankine Cycle; 2018/03
    ANNOUNCEMENT INFO.; Journal of Marine Science and Engineering, 6, 2, 21
    AUTHOR; Yasuyuki Ikegami, Takeshi Yasunaga and Takafumi Morisaki
  • Construction of a Static Model for Power Generation of OTEC Plant Using Uehara Cycle Based on Experimental Data; 2018/02
    ANNOUNCEMENT INFO.; Journal of Marine Science and Engineering, 6, 2, 18
    AUTHOR; Yoshitaka Matsuda, Takuma Yoshitake, Takenao Sugi, Satoru Goto, Takafumi Morisaki, Takeshi Yasunaga and Yasuyuki Ikegami
  • SEAWATER FLOW RATE REGULATION OF OTEC PLANT USING UEHARA CYCLE BY CONSIDERING WARM SEAWATER TEMPERATURE VARIATION; 2017/11
    ANNOUNCEMENT INFO.; International Journal of Innovative Computing, Information and Control, 13, 6, 2123–2131
    AUTHOR; Yoshitaka Matsuda, Daiki Urayoshi, Satoru Goto, Takenao Sugi, Takafumi Morisaki, Takeshi Yasunaga and Yasuyuki Ikegami
  • Application of Finite-time Thermodynamics for Evaluation Method of Heat Engines; 2017/09
    ANNOUNCEMENT INFO.; Energy Procedia, 129, 995-1001
    AUTHOR; Takeshi Yasunaga and Yasuyuki Ikegami
  • Construction of Water Level Model for After Condenser in Spray Flash Desalination System via Stochastic Process; 2017/09
    ANNOUNCEMENT INFO.; The 49th ISCIE International Symposium on Stochastic Systems Theory and Its Applications, 100-105
    AUTHOR; Yoshitaka Matsuda, Yoshihiro Eishima, Satoru Goto, Takenao Sugi, Takafumi Morisaki, Takeshi Yasunaga and Yasuyuki Ikegami
  • Evaluation of a Liquid Level Model of Separator in an OTEC Experimental Plant Using Uehara Cycle via Different Experimental Data; 2017/09
    ANNOUNCEMENT INFO.; SICE2017, 1490-1495
    AUTHOR; Yoshitaka Matsuda, Satoru Goto, Takenao Sugi, Takafumi Morisaki, Takeshi Yasunaga and Yasuyuki Ikegami
  • An Improvement on LQG Controller for Liquid Level Control of Separator in an OTEC Experimental Plant Using Uehara Cycle; 2017/09
    ANNOUNCEMENT INFO.; SICE 2017, 1496-1501
    AUTHOR; Yoshitaka Matsuda, Satoru Goto, Takenao Sugi, Takafumi Morisaki, Takeshi Yasunaga and Yasuyuki Ikegami
  • Construction of OTEC Potential Model Based on Cycle Analysis; 2017/08
    ANNOUNCEMENT INFO.; , 30, 8, 297-304
    AUTHOR; 
  • Web Application for OTEC Simulator Using Double-stage Rankine Cycle; 2017/08
    ANNOUNCEMENT INFO.; Preprints of the 20th World Congress, The International Federation of Automatic Control, 50, 1, 121-128
    AUTHOR; Satoru Goto, Yoshitaka Matsuda, Takenao Sugi, Takafumi Morisaki, Takeshi Yasunaga, Yasuyuki Ikegami and Naruto Egashira
  • Control of OTEC Plant Using Double-stage Rankine Cycle Considering Warm Seawater Temperature Variation; 2017/07
    ANNOUNCEMENT INFO.; Preprints of the 21th World Congress, The International Federation of Automatic Control, 50, 1, 135-140
    AUTHOR; Yoshitaka Matsuda, Satoru Goto, Takenao Sugi, Takafumi Morisaki, Takeshi Yasunaga and Yasuyuki Ikegami
  • Liquid Level Control of Separator in an OTEC Plant with Uehara Cycle; 2016/12
    ANNOUNCEMENT INFO.; Trans of the institute system, control and Information Engineer, 29, 12, 353-543
    AUTHOR; Yoshitaka Matsuda, Satoru Goto, Takenao Sugi, Takafumi Morisaki, Takeshi Yasunaga and Yasuyuki Ikegami
  • THE VISUALIZATION OF PHASE CHANGE PHENOMENA IN HERRINGBONE TYPE PLATE HEAT EXCHANGER USING 3D-PRINTER; 2016/08
    ANNOUNCEMENT INFO.; The 27th International Symposium on Transport Phenomena
    AUTHOR; M. NAKAMURA, Y. KAWABATA, T. YASUNAGA and Y. IKEGAMI
  • Construction of Simulation Model for OTEC Plant Using Uehara Cycle; 2009/02
    ANNOUNCEMENT INFO.; , 129, 2, 272282
    AUTHOR; GOTO Satoru;MOTOSHIMA Yoshiki;SUGI Takenao;YASUNAGA Takeshi;IKEGAMI Yasuyuki;NAKAMURA Masatoshi
  • Construction of Simulation Model for Spray Flash Desalination System; 2008/08
    ANNOUNCEMENT INFO.; , 128, 8, 993999
    AUTHOR; GOTO Satoru;YAMAMOTO Yuji;SUGI Takenao;YASUNAGA Takeshi;IKEGAMI Yasuyuki;NAKAMURA Masatoshi
  • Performance Test of OTEC with Ammonia/water as Working Fluid Using Shell and Plate Type Heat Exchangers : Effects of Heat Source Temperature and Flow Rate(Thermal Engineering); 2008/02
    ANNOUNCEMENT INFO.; , 74, 738, 445452
    AUTHOR; YASUNAGA Takeshi;IKEGAMI Yasuyuki;MONDE Masanori
  • Performance Evaluation of Benchmark Plant for Selective Lithium Recovery from Seawater; 2007/10
    ANNOUNCEMENT INFO.; Journal of Ion Exchange, 18, 4, 450-453
    AUTHOR; Kazuharu Yoshizuka, Marek Holba, Takeshi Yasunaga, Yasuyuki Ikegami
  • Optimum Mass Fraction of Working Fluid for OTEC Using the Uehara Cycle; 2006/02
    ANNOUNCEMENT INFO.; , 60, 1, 3946
    AUTHOR; IKEGAMI Yasuyuki;YASUNAGA Takeshi;HARADA Hidemitsu
  • Performance Experiments on Ocean Thermal Energy Conversion System Using the Uehara Cycle; 2006/02
    ANNOUNCEMENT INFO.; , 60, 1, 3238
    AUTHOR; IKEGAMI Yasuyuki;YASUNAGA Takeshi;HARADA Hidemitsu

Material, Commentary, Editorials, Research Report, A Comprehensive Journal Articles

  • The Optimum Design on Ocean Thermal Energy Conversion; 2019/02
    ANNOUNCEMENT INFO.; Bulletin of the Society of Water Science, Japan, 73, 9-13
    AUTHOR; 
  • 海洋温度差発電システムの性能評価手法の検討; 2017/09
    ANNOUNCEMENT INFO.; , 22, 37-46
    AUTHOR; 
  • Performance Evaluation of Heat Exchangers for Application to Ocean Thermal Energy Conversion System; 2017/09
    ANNOUNCEMENT INFO.; , 22, 65-75
    AUTHOR; Takeshi YASUNAGA, Kevin FONTAINE, Takafumi MORISAKI and Yasuyuki IKEGAMI
  • Performance Evaluation Method of Ocean Thermal Energy Conversion System; 2017
    ANNOUNCEMENT INFO.; , 22, 37 - 46
    AUTHOR; 
  • Oceanic Observation and Investigation for Compound use of OTEC in Kumejima; 2016/10
    ANNOUNCEMENT INFO.; , 21, 26-34
    AUTHOR; 
  • Potential Evaluation of Ocean Thermal Energy Conversion; 2015/07
    ANNOUNCEMENT INFO.; , 20, 2131
    AUTHOR; 
  • Performance Test of 30kW OTEC System Using Ammonia/water as Working Fluid: Effects of Heat Source Temperature and Flow Rate; 2008/03
    ANNOUNCEMENT INFO.; , 13, 8794
    AUTHOR; Yasunaga Takeshi;Ikegami Yasuyuki;Monde Masanori
  • Performance Test of 30kW OTEC System Using Ammonia/water as Working Fluid: Effects of Composition of Ammonia/water Mixture; 2008/03
    ANNOUNCEMENT INFO.; , 13, 95102
    AUTHOR; Yasunaga Takeshi;Ikegami Yasuyuki;Asou Hiroyuki;Monde Masanori

General Lectures

  • Parametric Analysis on Hybrid Ocean Thermal Energy Conversion System; 2019/03
    ANNOUNCEMENT INFO.; , 620
    AUTHOR; Tomoya Okuno, Natsuki Koyama, Takeshi Yasunaga, Yasuyuki Ikegami
  • Performance evaluation of high pressure resistance inner-fin plate type heat exchanger; 2019/03
    ANNOUNCEMENT INFO.; , 622
    AUTHOR; Daithi YAYAMA, Kiwamu SASAKI, Takeshi YASUNAGA, Yasuyuki IKEGAMI
  • 2段ランキンサイクルを用いた海洋温度差発電プラントの作動流体ポンプの動特性を考慮した簡易動的モデルの構築; 2019/03
    ANNOUNCEMENT INFO.; , 3B2-5
    AUTHOR; 
  • 2段ランキンサイクルを用いた海洋温度差発電プラントのむだ時間を考慮した簡易動的モデルにおける海水流量変化の影響; 2019/03
    ANNOUNCEMENT INFO.; , 3B2-6
    AUTHOR; 
  • ランキンサイクルを用いた海洋温度差発電プラントの気液分離器を考慮した動的モデルの構築; 2018/11
    ANNOUNCEMENT INFO.; , 104A9
    AUTHOR; 
  • ランキンサイクルを用いた海洋温度差発電プラントの気液分離器を考慮した動的モデルの構築; 2018/11
    ANNOUNCEMENT INFO.; , 102B2
    AUTHOR; 
  • 2段ランキンサイクルを用いた海洋温度差発電プラント実時間遠隔操作のためのWebアプリケーション開発; 2018/11
    ANNOUNCEMENT INFO.; , 3C4
    AUTHOR; 
  • Exergy Distraction in Heat Transfer on Low-grade Thermal Energy Conversion (LTEC) System: A Case of Plate Type Heat Exchangers; 2018/10
    ANNOUNCEMENT INFO.; 5th International Conference, Low Temperature and Waste Heat Use in Energy Supply Systems
    AUTHOR; Takeshi Yasunaga and Yasuyuki Ikegami
  • Application of Finite-time Thermodynamics to Simplifying Heat Exchanger Performance Evaluation Method on OTEC; 2018/09
    ANNOUNCEMENT INFO.; The 6th International OTEC Symposium
    AUTHOR; Takeshi Yasunaga and Yasuyuki Ikegami
  • Advanced cycles and heat exchangers on OTEC Technology; 2018/09
    ANNOUNCEMENT INFO.; The 6th International OTEC Symposium
    AUTHOR; Yasuyuki Ikegami and Takeshi Yasunaga
  • The Visualization of Plate Heat Exchangers for Ocean Thermal Energy Conversion; 2018/09
    ANNOUNCEMENT INFO.; The 6th International OTEC Symposium
    AUTHOR; Kiwamu SASAKI, Takeshi YASUNAGA, Takahumi MORISAKI and Yasuyuki IKEGAMI
  • Performance Evaluation of the Plate Type Heat Exchanger for OTEC; 2018/09
    ANNOUNCEMENT INFO.; The 6th International OTEC Symposium
    AUTHOR; Natsuki KOYAMA, Takeshi YASUNAGA, Takafumi NOGUCHI, Takafumi MORISAKI and Yasuyuki IKEGAMI
  • Hybrid OTEC System – The First Experimental Test Rig in Malaysia; 2018/09
    ANNOUNCEMENT INFO.; The 6th International OTEC symposium
    AUTHOR; Sathiabama T. Thirugnanaa, A Bakar Jaafara, Takeshi Yasunaga and Yasuyuki Ikegami
  • Current Status of Web-based Simulator and Control System for OTEC Plant Using Double-stage Rankine Cycle; 2018/09
    ANNOUNCEMENT INFO.; 6th International OTEC Symposium, IOS6-09
    AUTHOR; Yoshitaka Matsuda, Takenao Sugi, Satoru Goto, Takeshi Yasunaga, Yasuyuki Ikegami and Naruto Egashira
  • 2段ランキンサイクルを用いた海洋温度差発電プラントの温海水温度の変動を考慮した発電量制御の改善; 2018/09
    ANNOUNCEMENT INFO.; , 03-2A-09, 300
    AUTHOR; 
  • スプレーフラッシュ蒸発式海水淡水化システムの真空ポンプを考慮したシミュレーションモデルの改良; 2018/09
    ANNOUNCEMENT INFO.; , 03-2A-07, 298
    AUTHOR; 
  • 2段ランキンサイクルを用いた海洋温度差発電プラントのむだ時間を考慮した動的モデルの構築; 2018/09
    ANNOUNCEMENT INFO.; , 03-2A-08, 299
    AUTHOR; 
  • Anti-windup Compensation for Water Level Control of a Spray Flash Desalination System with Flow Rate Limitations; 2018/09
    ANNOUNCEMENT INFO.; roc. 2nd IEEE Conference on Control Technology and Applications, 1363-1368
    AUTHOR; Yoshitaka Matsuda, Ryoichi Sakai, Takenao Sugi, Satoru Goto, Takafumi Morisaki, Takeshi Yasunaga and Yasuyuki Ikegami
  • Basis of Heat Exchanger Performance on Finite-time Thermodynamics in OTEC; 2018/06
    ANNOUNCEMENT INFO.; The 23rd National Symposium on Power and Energy Systems, E121
    AUTHOR; Takeshi YASUNAGA, Natsuki KOYAMA,Takafumi NOGUCHI, Takafumi MORISAKI and Yasuyuki IKEGAMI
  • The Visualization of Evaporation in Plate Heat Exchanger for Low-grade Thermal Energy Conversion; 2018/06
    ANNOUNCEMENT INFO.; The 23rd National Symposium on Power and Energy Systems, E123
    AUTHOR; Yasuyuki IKEGAMI, Takeshi YASUNAGA,Takahumi MORISAKI and Kiwamu SASAKI
  • Theoretical effectiveness of the multi temperature level cycles considering irriversibility in heat transfer on OTEC; 2018/06
    ANNOUNCEMENT INFO.; Grand renewable energy 2018, O-Oe-31
    AUTHOR; Takeshi Yasunaga, Takafumi Morisaki, Yasuyuki Ikegami
  • Thermodynamical optimum heat source mean velocity in heat exchangers on OTEC; 2018/06
    ANNOUNCEMENT INFO.; Grand Renewable Energy 2018, O-Oe-3-2
    AUTHOR; Takeshi Yasunaga, Natsuki Koyama, Takafumi Noguchi Taakafumi Morisaki and Yasuyuki Ikegami
  • Estimation of thermal energy conversion system using submarine hydrothermal; 2018/06
    ANNOUNCEMENT INFO.; Grand Renewable Energy 2018, O-Oe-3-4
    AUTHOR; Yasuyuki Ikegami, Takeshi Yasunaga, Takafumi Morisaki, Shoichiro Baba, Tsuyoshi Miyazaki, Tadahiro Hyakudome and Hiroshi Yoshida
  • 2段ランキンサイクルを用いた海洋温度差発電プラントシミュレータの遠隔制御; 2018/06
    ANNOUNCEMENT INFO.; , E122
    AUTHOR; 
  • 淡水出口バルブの動特性を考慮したスプレーフラッシュ蒸発式海水淡水化システムの補助凝縮器水位モデルの構築; 2017/11
    ANNOUNCEMENT INFO.; , 103B4, 123-126
    AUTHOR; 
  • ランキンサイクルを用いた海洋温度差発電プラント実時間遠隔操作のためのWebアプリケーション開発; 2017/11
    ANNOUNCEMENT INFO.; , 102C5, 91-94
    AUTHOR; 
  • 2段ランキンサイクルを用いた海洋温度差発電実験プラントの目標発電出力変更を考慮した制御シミュレーション; 2017/11
    ANNOUNCEMENT INFO.; , SaA3-2
    AUTHOR; 
  • スプレーフラッシュ蒸発式海水淡水化システムの補助凝縮器水位モデルの構築; 2017/09
    ANNOUNCEMENT INFO.; , 08-1A-03, 70
    AUTHOR; 
  • Study of System Design Method for Rankine Cycle System on OTEC; 2017/06
    ANNOUNCEMENT INFO.; , E125
    AUTHOR; Takafumi NOGUCHI, Takeshi YASUNAGA, Takafumi MORISAKI, Yuki Nakano and Yasuyuki IKEGAMI
  • Study of Available Thermal Energy on OTEC; 2017/06
    ANNOUNCEMENT INFO.; , E124
    AUTHOR; 
  • 海底熱水温度差発電システムの性能解析に関する研究; 2017/06
    ANNOUNCEMENT INFO.; , E126
    AUTHOR; Yasuyuki IKEGAMI, Takeshi YASUNAGA, Takafumi MORISAKI, Shoichiro BABA, Tsuyoshi MIYAZAKI, Tadahiro HYAKUDOME and Hiroshi YOSHIDA
  • Study of Available Thermal Energy on OTEC; 2017
    ANNOUNCEMENT INFO.; The Proceedings of the National Symposium on Power and Energy Systems, 2017, 0, -
    AUTHOR; YASUNAGA Takeshi;MORISAKI Takafumi;IKEGAMI Yasuyuki
  • Study of System Design Method for Rankine Cycle System on OTEC; 2017
    ANNOUNCEMENT INFO.; The Proceedings of the National Symposium on Power and Energy Systems, 2017, 0, -
    AUTHOR; NOGUCHI Takafumi;YASUNAGA Takeshi;MORISAKI Takafumi;Nakano Yuki;IKEGAMI Yasuyuki
  • Parametric Analysis of Thermal Energy Conversion System Using Submarine Hydrothermal; 2017
    ANNOUNCEMENT INFO.; The Proceedings of the National Symposium on Power and Energy Systems, 2017, 0, -
    AUTHOR; IKEGAMI Yasuyuki;YASUNAGA Takeshi;MORISAKI Takafumi;BABA Shoichiro;MIYAZAKI Tsuyoshi;HYAKUDOME Tadahiro;YOSHIDA Hiroshi
  • Control Simulation for OTEC Plant Using Double-stage Rankine Cycle by Considering the Target Power Output Variation; 2017
    ANNOUNCEMENT INFO.; Proceedings of the Japan Joint Automatic Control Conference, 60, 0, 319 - 324
    AUTHOR; Matsuda Yoshitaka;Goto Satoru;Sugi Takenao;Morisaki Takafumi;Yasunaga Takeshi;Ikegami Yasuyuki
  • 2段ランキンサイクル海洋温度差発電プラントのシミュレータに基づく遠隔操作Webアプリケーション開発; 2016/12
    ANNOUNCEMENT INFO.; , 544-548
    AUTHOR; 
  • Model Construction of Warm Water Temperature of Heat Source in an OTEC Experimental Plant via Stochastic Process; 2016/11
    ANNOUNCEMENT INFO.; The 48th ISCIE International Symposium on Stochastic Systems Theory and Its Applications, 4, 5, 70-75
    AUTHOR; Yoshitaka Matsuda, Satoru Goto, Takenao Sugi, Takafumi Morisaki, Takeshi Yasunaga, Yasuyuki Ikegami
  • Turbulence-induced enhancement of heat transfer performance by means of air/liquid mixing in plate heat exchangers; 2016/10
    ANNOUNCEMENT INFO.; , C112
    AUTHOR; Sami Mutair, Takeshi Yasunaga, Takafumi Morisaki, Yasuyuki Ikegami
  • Heat Source Temperature Difference and Maximum Power of Multi-stage Rankine Cycle; 2016/10
    ANNOUNCEMENT INFO.; , D214
    AUTHOR; 
  • The visualization of evaporation and condensation in plate heat exchanger (The effect of inlet quality); 2016/10
    ANNOUNCEMENT INFO.; , C111
    AUTHOR; 
  • The visualization of Evaporation-Condensation and Heat Transfer Performance Analysis on Plate Type Heat Exchangers; 2016/08
    ANNOUNCEMENT INFO.; 2016 International Ocean Energy Symposium & 15th Joint Young Researcher Forum
    AUTHOR; 
  • Optimization of OTEC Design Parameter for Staging Rankine Cycle; 2016/08
    ANNOUNCEMENT INFO.; 2016 International Ocean Energy Symposium & 15th Joint Young Researcher Forum
    AUTHOR; Yuki NAKANO, Takeshi YASUNAGA, Takafumi MORISAKI, Eisuke KUSUDA and Yasuyuki IKEGAMI
  • 海洋熱エネルギーを利用した海水淡水化システムの最大回収率に関する研究; 2016/06
    ANNOUNCEMENT INFO.; Bull. Soc. Sea Water Sci., Jpn., 70, 3, 2016
    AUTHOR; 
  • Reduction of Required Seawater Quantity by Multi-stage Rankine Cycle on OTEC; 2016/06
    ANNOUNCEMENT INFO.; , 2016, E123
    AUTHOR; 
  • Study of OTEC System Design Method for Multi-stage Rankine Cycle System; 2016/06
    ANNOUNCEMENT INFO.; , E124
    AUTHOR; 
  • Construction of Dynamic Model for Warm Heat Source in an OTEC Experimental Plant Based on Experimental Data of Warm Water Temperature; 2016
    ANNOUNCEMENT INFO.; Proceedings of the Japan Joint Automatic Control Conference, 59, 0, 748752
    AUTHOR; Shimada T.;Matsuda Y.;Sugi T.;Goto S.;Morisaki T.;Yasunaga T.;Ikegami Y.
  • Improvement of User Interface Function of Remote Monitoring System for OTEC Plant; 2016
    ANNOUNCEMENT INFO.; Proceedings of the Japan Joint Automatic Control Conference, 59, 0, 3944
    AUTHOR; Ueno T.;Matsuda Y.;Sugi T.;Goto S.;Morisaki T.;Yasunaga T.;Ikegami Y.;Egashira N.
  • 多段ランキンサイクルを用いたOTECによる海水流量低減の検討; 2015/11
    ANNOUNCEMENT INFO.; , 16, 2, 62
    AUTHOR; 
  • 久米島海洋深層水を利用した海水淡水化装置の連続運転; 2015/11
    ANNOUNCEMENT INFO.; , 16, 2, 61
    AUTHOR; 
  • Multi-Stage Cycle for Advanced OTEC System in Saga University; 2015/09
    ANNOUNCEMENT INFO.; 
    AUTHOR; Takeshi YASUNAGA, Takafumi MORISAKI and Yasuyuki IKEGAMI
  • 低温度差発電のエクセルギーと熱機関の最大出力を用いた評価方法の検討; 2015/09
    ANNOUNCEMENT INFO.; , C134
    AUTHOR; 
  • 多段ランキンサイクルにおける伝熱性能と段数の影響; 2015/08
    ANNOUNCEMENT INFO.; , E15
    AUTHOR; 
  • プレート式熱交換器の二相状態における可視化と伝熱性能; 2015/07
    ANNOUNCEMENT INFO.; , E17
    AUTHOR; 
  • D117 Experimental research of OTEC using ammonia/water mixture as working fluid; 2008/06
    ANNOUNCEMENT INFO.; , 2008, 13, 185186
    AUTHOR; Ikegami Yasuyuki;Asou Hiroyuki;Yasunaga Takeshi;Inadomi Junichi;Goto Hirokazu
  • D116 Evaluation for Renewable Energy Generation System using Low-grade Thermal Energy Conversion (LTEC); 2008/06
    ANNOUNCEMENT INFO.; , 2008, 13, 183184
    AUTHOR; Ikegami Yasuyuki;Yasunaga Takeshi
  • Performance Test of OTEC with Ammonia/water as Working Fluid Using Shell and Plate Type Heat Exchangers : Effects of Heat Source Temperature and Flow Rate(Thermal Engineering); 2008/02
    ANNOUNCEMENT INFO.; , 74, 738, 445452
    AUTHOR; YASUNAGA Takeshi;IKEGAMI Yasuyuki;MONDE Masanori
  • Comparison between Kalina Cycle and Conventional OTEC System Using Ammonia-water Mixtures as Working Fluid; 2007/07
    ANNOUNCEMENT INFO.; 17th International Offshore and Polar Engineering Conference
    AUTHOR; Hiroyuki Aso, Takeshi Yasunaga, Yasuyuki Ikegami
  • OS2-22 Effect of Mass Fraction of Ammonia on OTEC Systemwith Ammonia/water Mixture as Working Fluid; 2007/06
    ANNOUNCEMENT INFO.; , 2007, 12, 367368
    AUTHOR; IKEGAMI Yasuyuki;ASOU Hiroyuki;YASUNAGA Takeshi;MANDA Hirokazu;INADOMI Junichi
  • OS2-23 Research on cycle of OTEC System using Ammonia-Water Mixtures as Working Fluid; 2007/06
    ANNOUNCEMENT INFO.; , 2007, 12, 369370
    AUTHOR; ASOU Hiroyuki;YASUNAGA Takeshi;INADOMI Junichi;IKEGAMI Yasuyuki
  • 2007S-OS2-1 Effect of Mass Fraction of Ammonia/Water Mixture on OTEC System with Uehaara Cycle; 2007/05
    ANNOUNCEMENT INFO.; , 4, 3738
    AUTHOR; IKEGAMI Yasuyuki;ASOU Hiroyuki;YASUNAGA Takeshi;MANDA Hirokazu;INADOMI Junichi
  • Effect of the variation of heat source inlet and outlet temperatures on the performance of the Rankine and the Kalina cycles in OTEC; 2007
    ANNOUNCEMENT INFO.; , 63-65
    AUTHOR; Takeshi Yasunaga, Yasuyuki Ikegami
  • Performance and economical analyses of benchmark plant for selective lithium recovery from seawater; 2007
    ANNOUNCEMENT INFO.; The 4th International Conference on Ion Exchange (ICIE’07)
    AUTHOR; Kazuharu Yoshizuka, Holba Mark, Takeshi Yasunaga, Yasuyuki Ikegami, Gottfried J.
  • 216 Performance Tests of a Plate Type Evaporator for OTEC Using Ammonia/Water Mixture as Working Fluid; 2006/10
    ANNOUNCEMENT INFO.; , 2006, 7374
    AUTHOR; IKEGAMI Yasuyuki;ASOU Hiroyuki;YASUNAGA Takeshi;KUBO Kaori;MANDA Hirokazu
  • 4-11. Characteristics and the Effect of Heat Source Conditions on Ocean Thermal Energy Conversion System Using Uehara Cycle; 2006/08
    ANNOUNCEMENT INFO.; , 15, 291292
    AUTHOR; YASUNAGA Takeshi;HARADA Hidemitsu;IKEGAMI Yasuyuki
  • CHARACTERISTICS AND ESTIMATION OF OCEAN THERMAL ENERGY CONVERSION SYSTEM USING UEHARA CYCLE; 2006
    ANNOUNCEMENT INFO.; RENEWABLE ENERGY 2006
    AUTHOR; Takeshi Yasunaga, Yasuyuki Ikegami
  • Experimental Performance Evaluation of Ocean Thermal Energy Conversion System Using Uehara Cycle; 2006
    ANNOUNCEMENT INFO.; RENEWABLE ENERGY 2006
    AUTHOR; Yasuyuki Ikegami, Takeshi Yasunaga
  • Dreams and Problems as an Future Energy Researcher; 2006
    ANNOUNCEMENT INFO.; Inter-COE International Symposium on Energy Systems, 44-45
    AUTHOR; Takeshi Yasunaga
  • OS2-15 Experimental Study on OTEC System Using Ammonia / Water Mixture as Working Fluid; 2005/06
    ANNOUNCEMENT INFO.; , 2005, 10, 203204
    AUTHOR; IKEGAMI Yasuyuki;YASUNAGA Takeshi;HARADA Hidemitsu;UEHARA Haruo
  • OS2-14 A Study of Optimum Mass Fraction of OTEC Using Ammonia / Water Mixture as Working Fluid; 2005/06
    ANNOUNCEMENT INFO.; , 2005, 10, 201202
    AUTHOR; IKEGAMI Yasuyuki;YASUNAGA Takeshi;UEHARA Haruo
  • Effect of Regenerator Heat Transfer Performance on the Cycle Thermal Efficiency of OTEC Using Ammonia - Water as Working Fluid; 2005/06
    ANNOUNCEMENT INFO.; 15th International Offshore and Polar Engineering Conference
    AUTHOR; Yasuyuki Ikegami, Takeshi Yasunaga, Haruo Uehara, H.
  • Performance Improvement of Ocean Thermal Energy Conversion System using Ammonia / Water Mixtures as Working Fluid; 2005
    ANNOUNCEMENT INFO.; 6th KSME-JSME Thermal and Fluids Engineering Conference, JK.07
    AUTHOR; Yasuyuki Ikegami, Takeshi Yasunaga, Haruo Uehara

Application of Intellectual Property Rights

  • 水処理システム及び水処理方法; 2017/03
    ANNOUNCEMENT INFO.; 
    AUTHOR; 
  • 水処理システム及び水処理方法; 2015/01
    ANNOUNCEMENT INFO.; 
    AUTHOR; 
  • 水処理システム; 2015/01
    ANNOUNCEMENT INFO.; 
    AUTHOR; 
  • 逆浸透膜装置; 2014/09
    ANNOUNCEMENT INFO.; 
    AUTHOR; 
  • 逆浸透膜装置及びその運転方法; 2014/09
    ANNOUNCEMENT INFO.; 
    AUTHOR; 
  • 逆浸透膜装置の運転方法; 2014/09
    ANNOUNCEMENT INFO.; 
    AUTHOR; 
  • モジュール浮体発電装置; 2014/08
    ANNOUNCEMENT INFO.; 
    AUTHOR; 
  • 波力発電装置およびその制御方法; 2013/09
    ANNOUNCEMENT INFO.; 
    AUTHOR; 
  • 波力発電装置およびこれを備えた浮体構造物ならびに波力発電装置の制御方法; 2013/08
    ANNOUNCEMENT INFO.; 
    AUTHOR; 
  • 波力発電装置およびその制御方法; 2013/08
    ANNOUNCEMENT INFO.; 
    AUTHOR; 
  • 波力発電装置; 2013/08
    ANNOUNCEMENT INFO.; 
    AUTHOR; 
  • 逆浸透膜装置及びその運転方法; 2013/02
    ANNOUNCEMENT INFO.; 
    AUTHOR; 
  • 逆浸透膜装置の運転方法; 2013/02
    ANNOUNCEMENT INFO.; 
    AUTHOR; 
  • 波力発電装置; 2012/11
    ANNOUNCEMENT INFO.; 
    AUTHOR; 
  • 波力発電装置の固有振動調整機構; 2012/10
    ANNOUNCEMENT INFO.; 
    AUTHOR; 
  • 波力発電装置; 2011
    ANNOUNCEMENT INFO.; , 特開2011-117311
    AUTHOR; 

Review Articles

  • 海洋温度差発電の特徴と開発動向; 2018/12
    ANNOUNCEMENT INFO.; , 41, 12, 979-983
    AUTHOR; 
  • 海洋温度差発電; 2016/08
    ANNOUNCEMENT INFO.; , 103, 7, 4-9
    AUTHOR; 

Invited Lecture, Special Lecture

  • 海洋温度差発電の最新動向とエネルギー利用の可能性; 2018/05
    ANNOUNCEMENT INFO.; 
    AUTHOR; 
  • 海洋温度差発電の最適設計; 2017/11
    ANNOUNCEMENT INFO.; 
    AUTHOR; 
  • The Advanced Technology and The Future Concept for OTEC in Japan and The World; 2016/03
    ANNOUNCEMENT INFO.; Island Environment and Climate Change in Asia-Pacific Region
    AUTHOR; Takeshi Yasunaga
  • Global innovation using OTEC for stable energy and sustainable water; 2015/07
    ANNOUNCEMENT INFO.; International Seminar and Exhibition on New Development on Ocean Energy in Asia Pasific
    AUTHOR; Yasuyuki Ikegami, Takeshi Yasunaga


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