지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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This paper describes unsteady internal flow characteristics of a cathode air blower, used for the 1 kW fuel cell system. The cathode air blower considered in the present study is a diaphragm type blower. To analyze the flow field inside the diaphragm cavity, compressible unsteady numerical simulation is performed. Moving mesh system is applied to the numerical analysis for describing the volume change of the diaphragm cavity in time. Throughout a numerical simulation by modeling the inlet and outlet valves in a diaphragm cavity, unsteady nature of an internal flow is successfully analyzed. Variations of mass flow rate, force and pressure on the lower moving plate of a diaphragm cavity are evaluated in time. The computed mass flow rate at the same pressure and rotating frequency of a motor has a maximum of 5 percent error with the experimental data. It is found that flow pattern at the suction process is more complex compared to that at the discharge process. Unsteady nature of internal flow in the cathode air blower is analyzed in detail.
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참고문헌 (12)
참고문헌 신청
1. [기타자료] - / 2010 / CFX-13 User Manual / Ansys Inc
2. [학술지(정기간행물)] - 최가람 / 2011 / 연료전지용 연료승압 블로어 내부유동장 평가 / 신재생에너지 7 (3) : 29 ~ 35
3. [학술지(정기간행물)] - Chon, Y. / 1993 / A Knowledgebased System for Centrifugal Fan Blade / Journal of Engineering Applications of Artificial Intelligence 6 (5) : 425 ~ 435
4. [학술대회논문] - Jang, C. M. / 2011 / Performance Analysis of Diaphragm Blower for Fuel Cell / Proceeding of 2010 SAREK Conference : 1006 ~ 1011
5. [학술지(정기간행물)] - Jang, C. M. / 2010 / Enhancement of Performance by Blade Optimization in Two-Stage Ring Blower / J. of Thermal Science 19 (5) : 383 ~ 389
2. [학술지(정기간행물)] - 최가람 / 2011 / 연료전지용 연료승압 블로어 내부유동장 평가 / 신재생에너지 7 (3) : 29 ~ 35
3. [학술지(정기간행물)] - Chon, Y. / 1993 / A Knowledgebased System for Centrifugal Fan Blade / Journal of Engineering Applications of Artificial Intelligence 6 (5) : 425 ~ 435
4. [학술대회논문] - Jang, C. M. / 2011 / Performance Analysis of Diaphragm Blower for Fuel Cell / Proceeding of 2010 SAREK Conference : 1006 ~ 1011
5. [학술지(정기간행물)] - Jang, C. M. / 2010 / Enhancement of Performance by Blade Optimization in Two-Stage Ring Blower / J. of Thermal Science 19 (5) : 383 ~ 389
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