• 제목/요약/키워드: Portable Fuel Cell

검색결과 83건 처리시간 0.023초

연료전지 - 그 비전과 전망 (Why Fuel Cell ? - Its Vision and Prospects)

  • 김건택;정진엽
    • 유체기계공업학회:학술대회논문집
    • /
    • 유체기계공업학회 2001년도 유체기계 연구개발 발표회 논문집
    • /
    • pp.367-372
    • /
    • 2001
  • A fuel cell is an electrochemical energy conversion device tint converts hydrogen and oxygen into electricity and heat for hot water and heating room A fuel cell provides a DC voltage tint can be used to power motors, lights or any number if electrical appliances. There are several different types if fuel cells, each using a different chemistry. Some types if fuel cells show promise for use in DC (distributed generation) because fuel cell is very clean and efficient energy device. CETI (Clean Energy Technologies, Inc.) is developing PEMFC and DMFC for residential power generation, portable and battery. It is anticipated tint RPG is advantageous over current power generation by utility In terms if economics assuming the lifetime of major components is at least five years.

  • PDF

연료전지 전원 시스템의 설계 및 분석을 위한 PEMFC의 회로 모델 (A Circuit Model of PEMFC for Design and Analyze Fuel Cell Power System)

  • 이수호;이현우;권순걸
    • 전력전자학회:학술대회논문집
    • /
    • 전력전자학회 2006년도 전력전자학술대회 논문집
    • /
    • pp.197-199
    • /
    • 2006
  • The Proton Exchange Membrane Fuel Cells (PEMFCs) are being used in a variety of applications including portable power generation, transportation and back-up power systems. In this paper presents a novel circuit model for a PEMFC that can be used to design and analyze fuel-cell power system. The Pspice-based model uses BJTs, L and C elements available in the Pspice library with some modification. The model includes the phenomena like activation polarization, ohmic polarization and mass transport effect present in a PEM fuel cell. Simulated characteristics of the fuel cell were compared with the experimental results obtained on a commercial fuel cell.

  • PDF

수동형 직접 메탄올 연료전지의 특성 연구 (Characterization of Passive Direct Methanol Fuel Cells)

  • 고백균;김영진;오인환;홍성안;하흥용
    • 전기화학회지
    • /
    • 제6권1호
    • /
    • pp.23-27
    • /
    • 2003
  • 본 연구는 휴대용 전원으로 사용 가능성이 높은 소형 직접메탄을 연료전지의 단위전지와 모노폴라 스택의 운전특성을 살펴본 것이다. 공기와 메탄올이 외부에서 강제로 공급되지 않는 수동형(passive)의 운전조건에서 최적 메탄을 농도는 4M이었으며, 촉매 담지량도 $8mg/cm^2$에서 가장 높은 성능을 나타내었다. 상온 상압 수동형 조건에서 얻은 최대 성능은 $55mW/cm^2$이었다. 6개의 단전지로 이루어진 모노폴라 스택에서는 셀간의 성능차이는 크게 나타나지 않았으며, 출력밀도는 $37mW/cm^2$이고, 1W의 출력을 보였다. 또한, 16셀로 구성된 2.4W급 모노폴라 스택을 제작하여 모형 자동차에 장착하고 시범 운전을 성공적으로 수행하였다.

Real-time and Power Hardware-in-the-loop Simulation of PEM Fuel Cell Stack System

  • Jung, Jee-Hoon
    • Journal of Power Electronics
    • /
    • 제11권2호
    • /
    • pp.202-210
    • /
    • 2011
  • Polymer electrolyte membrane (PEM) fuel cell is one of the popular renewable energy sources and widely used in commercial medium power areas from portable electronic devices to electric vehicles. In addition, the increased integration of the PEM fuel cell with power electronics, dynamic loads, and control systems requires accurate electrical models and simulation methods to emulate their electrical behaviors. Advancement in parallel computation techniques, various real-time simulation tools, and smart power hardware have allowed the prototyping of novel apparatus to be investigated in a virtual system under a wide range of realistic conditions repeatedly, safely, and economically. This paper builds up advancements of optimized model constructions for a fuel cell stack system on a real-time simulator in the view points of improving dynamic model accuracy and boosting computation speed. In addition, several considerations for a power hardware-in-the-loop (PHIL) simulation are provided to electrically emulate the PEM fuel cell stack system with power facilities. The effectiveness of the proposed PHIL simulation method developed on Opal RT's RT-Lab Matlab/Simulink based real-time engineering simulator and a programmable power supply is verified using experimental results of the proposed PHIL simulation system with a Ballard Nexa fuel cell stack.