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Shaft Power Matching and Performance Prediction for Contra-Rotating Axial Flow Fans
HVAC&R Research, 2007The purpose of shaft power matching of contra-rotating axial flow fans (CRAFF) is to ensure the best utilization of the motors at their rated power while not to overload them at the operation.Usually it requires a lot of time and effort due to lack of theoretical guidance and, thus, becomes a major problem for the application of CRAFF.
Weixiong Wang +4 more
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Design and Internal Flow Analysis of a Ducted Contra-Rotating Axial Flow Fan
Volume 1: Advances in Aerospace Technology, 2014This paper presents the design procedure of a ducted contra-rotating axial flow fan and investigates the flow behavior inside it using ANSYS CFX-15 flow solver. This study investigates parameters such as pressure ratio, inlet mass flow rate and efficiency in different operating points. This system consists of two rotors with an outer diameter of 434 mm
Ali Mohammadi, Masoud Boroomand
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Performance and flow condition of small-sized axial fan and adoption of contra-rotating rotors
Journal of Thermal Science, 2010Small-sized axial fans are used as air coolers for electric equipments. But there is a strong demand for higher power of fans according to the increase of quantity of heat from electric devices. Therefore, higher rotational speed design is conducted, although it causes the deterioration of the efficiency and the increase of noise.
Toru Shigemitsu, J. Fukutomi, Y. Okabe
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Advanced Materials Research, 2012
To improve the impeller safety and reliability of extractable explosion-proof contra-rotating axial fan for mine local ventilation, Extractable Fan FBDC№9.0/2×30 was taken as the research object, and an approximate three-dimensional finite element computation model was built by using ANSYS software. The stress and displacement were calculated, too.
Qiu Dong He, Wen Qi Yu, Shu Fen Xiao
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To improve the impeller safety and reliability of extractable explosion-proof contra-rotating axial fan for mine local ventilation, Extractable Fan FBDC№9.0/2×30 was taken as the research object, and an approximate three-dimensional finite element computation model was built by using ANSYS software. The stress and displacement were calculated, too.
Qiu Dong He, Wen Qi Yu, Shu Fen Xiao
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Flow Dynamics of a Contra-Rotating Axial Fan Under Windmilling and Locked Conditions
AIAA Journal, 2022Jerry T. John +2 more
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1703 Study on the Contra-Rotating Small-Sized Axial Fan
The proceedings of the JSME annual meeting, 2008Tadahiro YANO +3 more
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Construction of axial chirality via asymmetric radical trapping by cobalt under visible light
Nature Catalysis, 2022, Xiaotian Qi, Liang-Qiu Lu
exaly
DESIGN AND ANALYSIS OF A DUCTED CONTRA-ROTATING AXIAL FLOW FAN
Proceeding of Proceedings of CONV-14: International Symposium on Convective Heat and Mass Transfer. June 8 - 13, 2014, Kusadasi, Turkey, 2014Ali Mohammadi +2 more
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Comparative Analysis of Radial and Axial Flux Permanent Magnet Machine for a Contra Rotating Fan
2023 26th International Conference on Electrical Machines and Systems (ICEMS), 2023Xuanyang Hu +4 more
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1304 On The Performance of Contra-Rotating Small-Sized Axial Fan
The Proceedings of Conference of Chugoku-Shikoku Branch, 2010Yuki OKABE +2 more
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