A method for the speed matching of the second rotor (R2) with equal power for two rotors was proposed to avoid the overload of the second motor under low flow rate and the rapid decrease in pressure-rise and efficiency of R2 under high flow rate. The speed matching of two-stage rotors is proposed and analyzed to improve the stability margin of the counter-rotating fan (CRF). The fan performances during constant speed operating and during the speed matching operating are presented and discussed using experimental research. The results show that, the speed matching of R2 operating decreases the load of R2 under low flow rate and increases the pressure-rise and efficiency of R2 under high flow rate. Thus, the efficient working range and the blocking condition margin are increased. Reducing n1 and increasing n2 under low flow rate can regulate the position of unstable working line leftward without reducing the pressure-rise of the fan. Thus, the stability margin of the CRF is expanded.
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ASME 2018 Power Conference collocated with the ASME 2018 12th International Conference on Energy Sustainability and the ASME 2018 Nuclear Forum
June 24–28, 2018
Lake Buena Vista, Florida, USA
Conference Sponsors:
- Power Division
- Advanced Energy Systems Division
- Solar Energy Division
- Nuclear Engineering Division
ISBN:
978-0-7918-5140-1
PROCEEDINGS PAPER
Experimental Study on the Speed Matching of Two Rotors for a Counter-Rotating Fan Available to Purchase
Zijian Ai,
Zijian Ai
Xi'an Jiaotong University, Xi'an, China
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Guoliang Qin,
Guoliang Qin
Xi'an Jiaotong University, Xi'an, China
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Jingxiang Lin,
Jingxiang Lin
Xi'an Jiaotong University, Xi'an, China
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Xuefei Chen
Xuefei Chen
Xi'an Jiaotong University, Xi'an, China
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Zijian Ai
Xi'an Jiaotong University, Xi'an, China
Guoliang Qin
Xi'an Jiaotong University, Xi'an, China
Jingxiang Lin
Xi'an Jiaotong University, Xi'an, China
Xuefei Chen
Xi'an Jiaotong University, Xi'an, China
Paper No:
POWER2018-7108, V002T09A001; 6 pages
Published Online:
October 4, 2018
Citation
Ai, Z, Qin, G, Lin, J, & Chen, X. "Experimental Study on the Speed Matching of Two Rotors for a Counter-Rotating Fan." Proceedings of the ASME 2018 Power Conference collocated with the ASME 2018 12th International Conference on Energy Sustainability and the ASME 2018 Nuclear Forum. Volume 2: Heat Exchanger Technologies; Plant Performance; Thermal Hydraulics and Computational Fluid Dynamics; Water Management for Power Systems; Student Competition. Lake Buena Vista, Florida, USA. June 24–28, 2018. V002T09A001. ASME. https://doi.org/10.1115/POWER2018-7108
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