About Us

Pioneering Thermal Engineering

MFTEL focuses on solving critical energy challenges through advanced research in multiphase flow and heat transfer.

TES and Carnot Battery

Developing high-efficiency thermal energy storage systems and Carnot batteries for sustainable grid stability.

Immersion Cooling

Two-phase immersion cooling technology that reduces cooling energy by up to 90% for data centers and high-performance computing systems.

Small Modular Reactor

Enhancing the safety and efficiency of Small Modular Reactors through advanced thermal-hydraulic analysis.

News

Latest Updates

Stay updated with our latest research activities, conferences, and achievements.

2026. 01. 25.

Visiting Researchers at Th2FLAB

2026. 01. 22.

EPT Day 2026

2025. 12. 19.

MFTEL Visited Th2FLAB

2025. 11. 17.

Buildersgate CEO Visited Inha University

2025. 10. 21.

UTFORSK 2024 at Inha University

2025. 09. 03.

NURETH-21

2025. 08. 14.

MFTEL Visited Th2FLAB

2025. 08. 11.

UTFORSK 2024 at NTNU

2025. 05. 11.

11th WORTH in China

2025. 03. 02.

Visiting Research at HZDR and UPC

Our People

Meet the Team

Principal Investigator

Prof. Il Woong Park

Prof. Il Woong Park

Education & Career
  • Assistant Professor, Inha University (2022 ~)
  • Research Professor, Seoul National University (2022)
  • Research Professor, Jeju National University (2018 ~ 2021)
  • Ph.D., Norwegian University of Science and Technology (2014 ~ 2018)
  • M.S., Seoul National University (2011 ~ 2013)
  • B.S., Seoul National University (2008 ~ 2011)
Professional Activities
  • Visiting Professor, Norwegian University of Science and Technology (2026)
  • Editor, The Korean Hydrogen and New Energy Society (2024 ~)
  • Editor, The Korean Society for New and Renewable Energy (2025 ~)
  • Chief Technology Officer, PIOST (2025 ~)

Graduate Students

Hyun Jin Yong

Ph.D. student

#Boiling heat transfer

Jun Beom Song

Ph.D. student

#Thermal energy storage

Sang Min Song

Ph.D. student

#Condensation

Jae Hyeok Yang

Ph.D. student

#Thermal-hydraulic system code

Hyeon Geun Shin

Ph.D. student

#Two-phase flow instability

Sung Jin Kim

Ph.D. student

#Boiling #Dielectric fluid

Kyeong Ju Ko

M.S. student

#Computational fluid dynamics

Chaeyeon Kim

M.S. student

#Phase-change heat transfer

Eunbin Park

M.S. student

#Two-phase flow instability

Manho Kim

M.S. student

#Computational fluid dynamics

Joonhwan Hyun

M.S. student

#Thermal energy storage

Yeongjun Jung

M.S. student

#Boiling heat transfer

Alumni

Yun Seok Choi

2025 M.S.

Korea Hydro and Nuclear Power (KHNP) Central Research Institute

Join Us

Shape the Future of
Thermal Engineering

We are actively recruiting passionate M.S./Ph.D. students, postdocs, and researchers who want to push the boundaries of multiphase flow and heat transfer research.

World-Class Research

Publish in top-tier journals and present at international conferences

Global Network

Collaborate with NTNU (Norway), HZDR (Germany), UPC (Spain), and more

Promising Career

Our alumni are building careers at leading institutions like KHNP and beyond

Grow Your Way

We trust you to lead your research and planning

Ready to start your research journey?

Focus Areas

Research Fields

The AI Energy Paradox

AI was built to optimize efficiency—yet it is paradoxically becoming one of the largest energy consumers on earth. Training a single LLM costs tens of GWh; each inference draws 10× the power of a conventional search. By 2030, data centers will consume 8% of global electricity. The root of this challenge is thermal—multi-phase flow heat transfer is the bottleneck at every stage of power generation, storage, and consumption. MFTEL tackles this barrier on three fronts.

Pillar 1

TES & Carnot Batteries

Grid Stability via Thermal Energy Storage

Pillar 2

Immersion Cooling

Reducing Cooling Energy Consumption

Pillar 3

Small Modular Reactors

Sustainable Power Generation

500 MW+
per campus
Complementary Energy Sources
Solar
Needs intermittency support
Wind
Baseload limitations
SMR
24/7 reliable baseload
SMR Advantages
Passive Safety
Natural circulation cooling, no external power needed
Modular Build
Factory-fabricated, drastically shorter construction
Land Efficiency
1/10 footprint of conventional nuclear for same output
Cogeneration
Simultaneous electricity and direct heat utilization
Big Tech Data Center Power Demand
Microsoft835 MW
Google500 MW
Meta1 GW
Amazon1+ GW

Multi-phase flow physics is at the heart of SMR design. Two-phase flow in helical coil steam generators, natural circulation stability, and condensation heat transfer in containment during accidents—all are core competencies of MFTEL.

MFTEL Research Activities
Core Safety Validation for Multiple-Failure AccidentsNRF, 2022–2029

Validating core safety issues against strengthened technical criteria and developing technology to improve core safety during multiple-failure accidents. A long-term flagship project covering natural circulation cooling, two-phase flow instability, and accident progression analysis.

Next-Gen SMR Safety Enhancement DesignKETEP, 2024–2025

Global human resources training project for securing key design technologies for next-generation SMR safety. Training specialists in passive safety systems, helical steam generator thermal-hydraulics, and containment cooling—all SMR-specific multi-phase flow phenomena.

Containment Condensation Heat TransferPub. #5, #8, #12

Characterizing the effect of noncondensable gases on condensation heat transfer in steam-air mixtures. Experimentally analyzed heat transfer degradation mechanisms by light noncondensable gas (hydrogen) and gas stratification phenomena.

External Reactor Vessel Cooling (ERVC)Pub. #7, #9

Numerically evaluating thermal-hydraulic characteristics of ERVC in high-power reactors. Developed CFD-aided natural circulation flow rate estimation to quantitatively assess ERVC coolability limits.

Research Visuals
SMR & Flow Stability Research

Experiments

Two-Phase Flow InstabilityPool Boiling Heat TransferFlow Boiling Heat TransferThermal Margin TestDielectric FluidLeidenfrost EffectWettabilityCondensation

Computational Analysis

Nuclear SafetyNSK SystemCode CouplingOpenFOAMMARS-KSCUPIDGAMMA+ANSYS CFDFluentSTAR-CCM+

Research Collaborators

NTNU HZDRUPCKyushu Univ.KAERIKIERHD Hyundai Heavy IndustriesHyundai E&CLG ElectronicsBuilders Gate Seoul Nat'l Univ.Kyung Hee Univ.

Our Work

Publications

We have published 23 papers in top-tier journals.

Experimental Study on the Influence of Sub-Millimeter Copper Foams on Boiling Heat Transfer in Vertical Orientation

Hyunjin Yong, Jaehyeok Yang, Yunseok Choi, Il Woong Park*, Sai Raja Gopal Vadlamudi, Uwe Hampel, Hyun Sun Park

International Communications in Heat and Mass Transfer·2026
Critical Heat Flux Dependence on Surface Orientation and Bubble Dynamics in Pool Boiling over Silicon and Silicon Dioxide Surfaces

Jaehyeok Yang, Hyunjin Yong, Sungjin Kim, Il Woong Park*, Yeon-Gun Lee, Sai Raja Gopal Vadlamudi, Hyun Sun Park

International Journal of Energy Research·2025
A review of metal foam-enhanced pool boiling

Sung Jin Kim, Yun Seok Choi, Il Woong Park*, Young Beom Jo, Hyun Sun Park

Renewable and Sustainable Energy Reviews·2025
Experimental investigation on the influence of copper foam characteristics on pool boiling heat transfer

Yun Seok Choi, Sung Jin Kim, Il Woong Park*, Hyun Sun Park, Yeon-Gun Lee

International Communications in Heat and Mass Transfer·2024
Characteristics of Hydrogen Distribution Under Steam Condensation in an Enclosed Vessel: Steady and Transient States Tests

Il Woong Park, Jia Yu, Sang Min Song, Yeon-Gun Lee

International Journal of Energy Research·2023
The criterion of the Cassie–Baxter and Wenzel wetting modes and the effect of elastic substrates on it

Il Woong Park, Jonas M. Ribe, Maria Fernandino, Carlos Alberto Dorao

Advanced Materials Interfaces·2023

Funding & Patents

Research Projects

Research on improving the cooling performance of the HiMSEN engine pre-combustion chamber

2025

HD Hyundai Heavy Industry

Development of Thermal Energy Storage

2025

Laboratory-Specialized Startup Leading University, Ministry of Science and Technology

Basic Research on Electric Vehicle Battery Cooling Using Insulating Fluid Boiling Heat Transfer

2025

Inha University

Synergy for Safe and Sustainable Ocean in Norway and Korea (SONoKo)

2025 ~ 2028

UTFORSK, Direktoratet for høyere utdanning og kompetanse (HK-dir), Norway

Patents

Sand battery and energy extraction method

10-2906225

2025-12-26

Reactor and containment cooling system with hydrophobic surface modification for vapor condensation and phase change material coating

10-2906216

2025-12-26

Battery immersion cooling by boiling with gas-liquid flow path separation

10-2855737

2025-09-02

Super hydrophobic flexible sheet and manufacturing method

10-2023-0069264

2024-11-15