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Planning projects at Hongik University
Ongoing Projects
비정상 열조건에서의 나노공극 기반 상변화 비대칭성 정량 해석 연구 (한국연구재단, 개인기초, 우수신진(씨앗연구)) 25.09.01 ~ 26.08.31 (총연구비 78,000 천원 /년) [과제책임]
2. 비뉴턴 복잡 다상 유체 스프레이 유동해석 및 검증 연구실 (한국연구재단, 기초연구실) 25.06.01 ~ 28.05.31 (총연구비 500,000 천원 /년) [공동연구]
3. 과학기술혁신인재양성사업 (반도체패키징전문인력양성사업) 25.07.01 ~ 31.12.31 (총연구비 105 억원, 6.5년) [공동연구]
4. 대전류 고온초전도 자석용 도체 및 코일의 극저온 냉각 설계[2단계] (한국연구재단, 원천기술개발) 25.01.01 ~ 26.21.31 (연구비 60,000 천원/년) [공동연구]
Past projects ------------------------
1. 대전류 고온초전도 자석용 도체 및 코일의 극저온 냉각 설계[1단계] (한국연구재단)
2. 현대자동차 공동연구실 '배터리냉각' 참여
A. Fundamental study
1. Scale effect on the phase change
- Change of the energy for phase change (liquid to vapor) under micro/nano size
- Effect of scale on the energy transforming from solid to liquid under micro/nano size
2. Enhancement of heat transfer in the micro system
- Design the structure and/or modify the surface for two-phase heat transfer
- Particle Sintering and structure
- Flow boiling characteristics
3. Separation of gas from flow boiling surface
- Design of the structure separating gas from a flow
- Minimizing turbulent effect hindering heat transfer coefficient
B. Development of Components
1. Design ultra high efficient heat-exchanger
- Heat-exchanger satisfying high surface/ volume ratio with low pressure drop
2.
3. Heat pipe styled loop
Projects done at KIMM
Project 1. High Efficient Indirect LNG Re-gasification Technology for Short Lead Time Gas Supply System HE
(단납기 가스공급설비용 고효율 간접식 LNG 재기화 엔지니어링 기술) -
a. Development of 50, 200 & 500 kW PCHEs on FSRU
- Paper : Two-phase heat transfer and pressure drop characteristic using Nitrogen in 50 kW & 200 kW PCHEs
b. Pressure drop characteristics the lab-scale PCHE
- Paper : Local pressure drop along the channels in the lab-scale PCHE (in preparation)
- Paper : Local pressure drop in the headers in the lab-scale PCHE (in preparation)
c. Pressure distribution in the header of the lab-scale PCHE
- Paper : Local pressure drop distibution in the header of the lab-scale PCHE with visualization
Project 2. Welded Plate Heat Exchanger (WPHE)
a. Development of 100 m^2 WPHE
- Paper: Thermal and hydraulic performance of a WPHE (in preparation)
Project 3. Power to Fuel 시스템용 마이크로 채널 반응기 개발
a. Development of the process for bonding heat plates
- Paper : The characteristis of the Fecralloy bonding with MBF20 using image processing (Temperature dependent)
- Paper : Fecralloy bonding and mechanical chracteristics
- Paper : Diffusing bonding of Fecralloy
b. Transient Liquid Phase bonding (TLP)
Project 4. Flow boiling in mini channel (porous structure effect on thermal and hydraulic performance)
a. Improvement of the heat transfer using sintered structure
b. Visualization of the characteristics of the flow on a cone stricture
Project 5. Developing high surface/volume densed and effective heat exchangers in cryogenic systems
a. Thermal and hydraulic characteristic of Printed Circuit Heat Exchanger (PCHE) depending on bonding methods
Projects done at UCF
Project 1. Steady-state jet impinging cooling - Single phase
- Experimental works to estimate local heat transfer coefficients of jet impinging cooling.
- working fluid : Nitrogen gas, HFE-7000 and water
Project 2. Jet impinging cooling under transient heating loads and/or cooling loads - Single phase
- Experimental works to estimate local heat transfer coefficients of jet impinging under pulsed heating loads valve
- working fluid : Nitrogen, HFE-7000 and water
Project 3. Steady-state jet impinging cooling - Two - phases
- Experimental works to estimate local heat transfer coefficients of jet impinging cooling.
- working fluid : Nitrogen gas, HFE-7000 and water
Project 4. Jet impinging cooling under transient heating loads and/or cooling loads - Two - phases
- Experimental works to estimate local heat transfer coefficients of jet impinging under pulsed heating loads valve
- working fluid : Nitrogen, HFE-7000 and water
Project 5. Effects of surface modification on jet impinging cooling
- Estimating local heat transfer coefficients of the heat with modified surfaces
(hydrophobic & hydrophilic)
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