발포금속을 활용한 막가습기의 특성에 관한 연구
Study on the characteristics of membrane humidifier with porous metal foam
1
조회
0
다운로드
3
인용
0
참고문헌
키워드
초록
고분자 전해질 연료전지(PEMFC; Polymer Electrolyte Membrane Fuel Cell)에 공급되는 가스의 적정한 습도 유지는연료전지 스택의 성능에 큰 영향을 미친다. 연료전지 스택으로 공급되는 가스를 가습하기 위한 다양한 방법의 가습기중 쉘앤튜브형 막가습기(gas-to-gas membrane humidifier)는 가습기 내부에서 열과 물질이동이 동시에 이루어지고 구동을위한 추가 동력원이 필요 없는 장점이 있다. 본 연구에서는 기존의 쉘앤튜브형 막가습기에 발포금속을 충진한 경우의열전달과 물질전달 특성 및 차압 특성에 관하여 검토하였다. 본 연구의 범위에서 막가습기에 발포금속을 사용한 경우열전달률 및 물질전달률이 증가함을 알 수 있었다. 또한, 발포금속을 충진한 가습기에서의 입·출구 가스의 차압이 기존의 쉘앤튜브형 막가습기보다 낮음을 알 수 있었다.
Abstract
As the performance of PEMFC can be significantly affected by the humidity of gas supplied in its stack, several types of humidifiers are available for humidity control. Among them, the shell-type and tube-type gas-to-gas membrane humidifiers have several advantages. Membrane humidifiers exchange heat and water simultaneously, and additional power source or moving parts are not necessary. The study of membrane humidifier with porous metal foam was conducted to analyze its heat transfer, mass transfer, and pressure drop characteristics. The results showed that the heat and mass transfer rates of the membrane humidifier with porous metal foam were higher and its pressure drop was lower than those of the conventional membrane humidifier.
참고문헌 (16)
- J. Larminie, "Fuel Cell Systems Explained" (2003), WILEY
- 박상균, "가스 확산층(GDL)내부의 물이 연료전지 성능에 미치는 영향", 한국마린엔지니어링학회지, 39(4), pp.374~380 (2015), 한국마린엔지니어링학회[DOI]
- K. Ramya, "Study of a porous membrane humidification method in polymer electrolyte fuel cells", International Journal of Hydrogen Energy, 36(22), pp.14866~14872 (2011)
- S. K. Park, "Dynamic modeling and analysis of a shell-and-tube type gas-to-gas membrane humidifier for PEM fuel cell applications", International Journal of Hydrogen Energy, 33(9), pp.2273~2282 (2008)
- M. Sabharwal, "Two-dimensional modeling of a cross flow plate and frame membrane humidifier for fuel cell applications", Journal of Membrane Science, 409–410, pp.285~301 (2012)
- I. khazaee, "Effect of humidity content and direction of the flow of reactant gases on water management in the 4-serpentine and 1-serpentine flow channel in a PEM (proton exchange membrane) fuel cell", Energy, 101, pp.252~265 (2016)
- D. L. Maricle, "Carbon foam fuel cell components, U.S. Patent 4125676, Aug. 15", ~ (1978)
- S. Arisetty, "Metal foams as flow field and gas diffusion layer in direct methanol fuel cells", Journal of Power Sources, 165(1), pp.49~57 (2007)
- A. Kopanidis, "3D numerical simulation of flow and conjugate heat transfer through a pore scale model of high porosity open cell metal foam", International Journal of Heat and Mass Transfer, 53(11-12), pp.2539~2550 (2010)
- C. J. Tseng, "A PEM fuel cell with metal foam as flow distributor", Energy Conversion and Management, 62, pp.14~21 (2012)
- B. T. Tsai, "Effects of flow field design on the performance of a PEM fuel cell with metal foam as the flow distributor", International Journal of Hydrogen Energy, 37(17), pp.13060~13066 (2012)
- C. Y. Zhao, "Natural convection in metal foams with open cells", International Journal of Heat and Mass Transfer, 48(12), pp.2452~2463 (2005)
- J. J. Hwang, "Measurement of interstitial convective heat transfer and frictional drag for flow across metal foams", Journal of Heat Transfer, 124(1), pp.120~129 (2002)
- M. S. Phanikumar, "Non-Darcy natural convection in high porosity metal foams", International Journal of Heat and Mass Transfer, 45(18), pp.3781~3793 (2002)
- H. S. Jang, "A Study on Heat and Mass Transfer Characteristics of PEMEC Membrane Humidifier with Porous Metal Foam", M.S, pp.2017
- M. Lacroix, "Pressure drop measurements and modeling on SiC foams", Chemical Engineering Science, 62(12), pp.3259~3267 (2007)