• Title/Summary/Keyword: small stationary fuel cell system

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A Study on the design of bipolar plate for proton exchange membrane fuel cell (고분자 전해질 연료전지용 바이폴라 플레이트의 디자인에 관한 고찰)

  • Yoon, Jeong-Phil;Choi, Jang-Kyun;Cha, In-Su;Lim, Jung-Lyul
    • 한국신재생에너지학회:학술대회논문집
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    • 2007.11a
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    • pp.39-42
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    • 2007
  • Hydrogen fuel cell is clean and efficient technology along with high energy densities. While there are many different types of fuel cells, the proton exchange membrane fuel cell stands out as one of the most promising for transportation and small stationary applications. This paper focuses on design of bipolar plate for proton exchange membrane fuel cell. The bipolar plate model is realistically and accurately simulated velocity distribution, current density distribution and its effect on the PEMFC system using CFD tool FLUENT.

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A Study on a Design of Bipolar Plate for PEMFC System (PEMFC 시스템용 바이폴라 플레이트의 디자인에 관한 연구)

  • Yoon, Hyung-Sang;Cha, In-Su;Lee, Jeong-Il;Yoon, Jeong-Phil
    • New & Renewable Energy
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    • v.4 no.1
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    • pp.5-10
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    • 2008
  • Hydrogen fuel cell is clean and efficient technology along with high energy densities. While there are many different types of fuel cells, the proton exchange membrane fuel cell stands out as one of the most promising for transportation and small stationary applications. This paper focuses on design of bipolar plate for proton exchange membrane fuel cell. The bipolar plate model is realistically and accurately simulated velocity distribution, current density distribution and its effect on the PEMFC system using CFD tool FLUENT.

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A Study on the Worst Stress Condition Test Evaluation of Blowers for Small Stationary Fuel Cell System (소용량 건물용 연료전지시스템 블로워의 가혹조건 평가에 관한 연구)

  • Kim, Kangsoo;Lee, Deokkwon;Lee, Jungwoon;Kim, Eunjung;Kim, Inchan;Kim, Younggyu;Shin, Hunyong
    • Journal of the Korean Institute of Gas
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    • v.16 no.6
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    • pp.34-40
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    • 2012
  • The fuel cell is one of the renewable energy sources. And it is a new source of energy that can be applied to various fuels and continuously supported by the excellent city-gas infrastructure. It is important to improve performances and reliabilities, and reduce the cost of fuel cell systems for commercialization. And, some safety performances of blower domestically produced are evaluated and some improvements are researched to save the cost of fuel cell systems. In this paper, the performance and worst stress condition of blowers are evaluated in operating environment similar to the fuel cell systems. Actually, the correlation of flow, leakage and thermal behavior are evaluated in the worst stress condition at $70^{\circ}C$ and, some major factors of blower degradation such as a motor deterioration, material and structures of the outlet are examined.

A Fuel Cell Generation Modeling and Interconnected Signal Analysis using PSCAD/EMTDC (연료전지 발전시스템의 PSCAD/EMTDC 모델링 및 계통연계에 따른 전력신호 분석에 관한 연구)

  • Choi, Sang-Yule;Park, Jee-Woong;Lee, Jong-Joo
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.22 no.5
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    • pp.21-30
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    • 2008
  • The fuel cell generation convert fuel source, and gas directly to electricity in an electro-chemical process. Unlike traditional and conventional turbine engines, the process of fuel cell generation do not burn the fuel and run pistons or shafts, and it has not revolutionary machine, so have fewer efficiency losses, low emissions and no noisy moving parts. A high power density allows fuel cells to be relatively compact source of electric power, beneficial in application with space constraints. In this system, the fuel cell itself is nearly small-sized by other components of the system such as the fuel reformer and power inverter. So, the fuel cell energy's stationary fuel cells produce reliable electrical power for commercial and industrial companies as well as utilities. In this paper, a fuel cell system has been modeled using PSCAD/EMTDC to analyze its electric signals and characteristics. Also the power quality of the fuel cell system has been evaluated and the problems which can be occurred during its operation have been studied by modeling it more detailed. Particularly, we have placed great importance on its power quality and signal characteristics when it is connected with a power grid.