Comparison of performance of axial fans with straight and swept blades

• Autorzy: Wierciński Z.
• Języki publikacji: PL

Abstrakty

EN

Noxiousness of the noise generated by fans applied in different heat power and ventilation systems increase the tendency to develop new fans with the lower level of noise saving the same performance. In this paper the results of investigation of two axial fans WOO-63 with different rotor blades: straight and forward swept are given. This investigation shows that the noise of the fan with swept blades is about 6 dB lower than the noise of the fan with straight blades, but performance of the fan with swept blades remains as for the fan with straight blades.

Słowa kluczowe

EN

axial fans; Performance of fans

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN
• Czasopismo: Transactions of the Institute of Fluid-Flow Machinery
• Rocznik: 2005
• Tom: nr 116
• Strony: 57--70
• Opis fizyczny: Bibliogr. 16 poz., rys.

Twórcy

autor

Wierciński Z.

• The Szewalski Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14, 80-952 Gdańsk, Poland,

Bibliografia

• [1] Cumming R.A., Boswell R.J.: Highly skewed propellers, Annual meeting, The Soc. of Naval Architects and Marine Engs., New York 1972.
• [2] Fukano T., Kodama Y., Takamatsu Y.: Noise generated by low pressure axial flow fans, III: Effects of rotational frequency, blade thickness and outer blade profile, J. Sound and Vibrat., Vol. 56, 1978, 261-277.
• [3] Lewis R.I., Hill J.M.: The influence of sweep and dihedral in turbomachinery blade rows, J. Mech. Eng., Vol. 13, 1971, No. 4.
• [4] Polish Standards PN-80/M43120: Fans. Noise. Permissible values (in Polish).
• [5] Prosnak W.J.: Fluid Mechanics, PWN, Warsaw 1970 (in Polish).
• [6] Sasaki T., Breugelsmans F.: Comparison of sweep and dihedral effect on compressor cascade performance, J. Turbomachinery, Vol. 120, 1998 454-464.
• [7] Smith L.H., Yeh H.: Sweep and dihedral effects in axial flow turbomachinery, J. Basic Engng., Vol. 85, 1963.
• [8] Tomaszewski K., Dabrowska M., Madej K., Predygier: Investigtaion of prototype WOM–100/50 marine axial ventillator, Opr. Nr BW1/130, OPBR Barowent-MAWENT, Malbork 1987 (in Polish).
• [9] Wadia A.R., Szucs P.N., Crall D.W.: Inner work of aerodynamic sweep, J. Turbomachinery, Vol. 120, 1998, 671-682.
• [10] Walker P.J.: Blade lean in axial turbines: model turbine measurements and simulation by a novel numerical method, PhD Dissert., Dept. of Engineering, Uni. of Cambridge, 1987.
• [11] Wallis R.A.: Axial Flow Fans, Wiley and Sons, 1962.
• [12] Wennerstrom A.J.: Experimental study of a high through flow transonic axial compressor stage, J. Engng for Gas Turbine and Power, Vol. 106, 1984, No. 3, 552-560.
• [13] Wierciński Z.: A design of the flow sysytem of WOM–100/50 axial ventillator for MFW, Opracow. IMP PAN, No. 87/1987, Gdańsk (in Polish).
• [14] Wierciński Z.: Investigations of prototype axial ventillator WOO–63S with straight blades, Opracow. GZRM, Gdańsk 1996 (in Polish).
• [15] Wierciński Z.: Investigations of prototype axial ventillator WOO–63S with swept blades, Opracow. GZRM, Gdańsk 1996 (in Polish).
• [16] Wright T., Simmons W.E.: Blade sweep for low speed axial fans, J. Turbomachinery, Vol. 112, 1990, 151-158.