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2025 International Ocean Energy Symposium and 22nd Joint Young Researcher Forum

2025 International Ocean Energy Symposium & 22nd Joint Young Researcher Forum

Date: 4 August 2025
Venue: Pheonix Island Jeju, Jeju, Korea
Participants: Korea Maritime and Ocean University (KMOU), Mokpo National University (MNU), Mokpo National Maritime University (MMU), National Fisheries University (NFU), Saga University (IOES)

 

日韓の研究者における海洋エネルギー研究に関する学術交流と若手研究者の教育を目的として，海洋エネルギーに関する合同研究セミナーが毎年、開催されています．セミナーでは海洋エネルギーとその周辺技術が発表され，活発な討論が行われます．本年は木浦海洋大学（韓国）が開催校となり2年ぶりに韓国で対面開催されました．韓国海洋大学校（韓国），木浦海洋大学校（韓国），木浦大学校（韓国），水産大学校（日本），佐賀大学IOESから計47名が参加し，21件の口頭発表，9件のポスター発表が行われました．

With the aim of promoting academic exchange in the field of ocean energy research between Japanese and Korean researchers, as well as fostering the education of young researchers, an annual joint research seminar on ocean energy has been held.
At the seminar, presentations are given on ocean energy and related technologies, followed by lively discussions.

This year, Mokpo National Maritime University (MMU, Korea) served as the host institution, and for the first time in two years, the seminar was held in person in Korea.
A total of 47 participants attended from Korea Maritime & Ocean University (KMOU, Korea), Mokpo National Maritime University (MMU), National Fisheries University (NFU, Japan), and the Institute of Ocean Energy, Saga University (IOES).
The seminar featured 21 oral presentations and 9 poster presentations.

 

参加者数：合計47名

  • 韓国海洋大学 KMOU 11名 (教職員6名, 大学院生5名)
  • 木浦大学校 MNU 4名（教職員2名, 大学院生2名）
  • 木浦海洋大学校 MMU 3名 (教職員2名, 大学院生1名)
  • 水産大学校 NFU 9名 (教職員3名, 学部生・学部生6名)
  • 佐賀大学 IOES 20名 (教職員6名, 大学院生・学部生14名)

Number of Participants: Total 47

  • Korea Maritime and Ocean University (KMOU): 11 (6 teachers, 5 students)
  • Mokpo National University (MNU): 4 (2 teachers, 2 students)
  • Mokpo National Maritime University (MMU): 3 (2 teachers, 1 students)
  • National Fisheries University (NFU): 9 (3 teachers, 6 students)
  • Saga University (IOES): 20 (6 teachers, 14 students)

 

Timetable

4 August 2025

9:40-10:00   Opening (MMU, Host)

10:00-10:50   Oral session 1

  • Optimization of Transcritical CO2 Power Cycles for Ocean Thermal Energy Conversion Using Genetic Algorithms, Jun-Seong KIM (KMOU)
  • Evaluation of data center cooling system using deep seawater, Riki YAMASAKI (NFU)
  • Comparative analysis of Water and Ammonia as a working fluid of Rankine cycle in marine diesel engines waste heat recovery system, Thi Thu Ha TO (KMOU)
  • Research on plate heat exchanger visualization experiments against seawater fouling, Tsuyoshi MURATA (NFU)
  • Effect of limitation on seawater discharge temperature for  waste heat energy conversion system in seafood processing plant, Hidetoshi ZEIDA (NFU)

11:00-11:50   Oral session 2

  • Study on the effect of Blade Deformation of Sail Wing Turbine for  Wave Power Conversion on Power Conversion Efficiency, Atsushige TAMADA (SAGA-U)
  • Optimization of impeller shape to improve hydraulic performance of mixed flow pump with semi-open casing, Ujjwal SHRESTHA (MNU)
  • Influence of working fluid characteristics on Hybrid hot spring thermal energy conversion, Atsuyoshi ETSUKAWA (SAGA-U)
  • Experimental study on a scale-down pump turbine model, Tsenguun Gantulga
  • Study on performance evaluation of impulse turbine in Reciprocating flow, Hiroto SHINOHARA (SAGA-U)

13:00-13:55   Poster session

  • Experimental and Numerical Evaluation of Chemical Reaction Models for N2O Thermal Decomposition, Suhyeon KIM (KMOU)
  • Research on power generation system using waste heat from marine engines -Verification of required heat transfer area for heat exchanger-, Mamoru TAMEHIRA (NFU)
  • Comparison of the characteristics of double-stage reverse Rankine cycle refrigeration systems with different refrigerant combinations, Takaaki MAMIYA (NFU)
  • Oceanographic Survey for Installation of OTEC Plant in Okinotorishima, Hironori HASEZAKI (NFU)
  • Experimental Study of Hybrid Hot Spring Thermal Energy Conversion Using a Low-GWP Working Fluid, Kota MIHARA (SAGA-U)
  • Study on flow state inside PHE with gas-liquid two-layer flow, Naoto SAKAMOTO (SAGA-U)
  • Performance Experiments of Evaporator-Condenser for Hybrid Cycle Ocean Thermal Energy Conversion, Shun INATOMI (SAGA-U)
  • Research on power generation systems using ocean floor hydrothermal mineral deposits, Yu YAMAGUCHI (SAGA-U)
  • Methods for the Analysis of Pre-bending Effects on Optimal Wind Turbine Rotor Performance, Yuu MURAOKA (SAGA-U)

14:00-14:50   Oral session 3

  • Effect of Blade Tip Connection on a Bidirectional Tidal Turbine, Kazuhiko FURUNO (SAGA-U)
  • Wind Power Capacity of Domestic Offshore Wind Projects for K-RE100, Van Vinh VU (MMU)
  • The effect of hull shape on the performance of a floating OWC device, Kotaro Matsuda (SAGA-U)
  • Risk Assessment of ammonia leakage in marine confined spaces, Phan-Anh DUONG (KMOU)
  • Evaluation method for combined use of DOWA with Ocean Thermal Energy Conversion at its core, Mei KOKUBO (SAGA-U)

15:00-15:50   Oral session 4

  • Research on the Analysis of Fluid Flow Conditions Inside Plate Heat Exchanger, Shodai NAGATA (SAGA-U)
  • Experimental and Theoretical Analysis of Flashback Prevention in H2/CH4 Premixed Flames, Jun Seok KIM (KMOU)
  • The Optimum Design on Hybrid Ocean Thermal Energy Conversion (Effect of Non-condensable Gas Concentration), Shodai TANAKA (SAGA-U)
  • Experimental Investigation of Suppression of Thermal Runaway in Lithium-Ion Battery through a Novel Method, Seunghun SEONG (KMOU)
  • Research on a Combined Model with Ocean Thermal Energy Conversion for Submarine Rare Earth elements Development, Tetsuya HONDA (SAGA-U)

16:00-16:30 Closing