Fan impeller outlet diameter d2 = 950mm, export of wide-diameter ratio of 0.030, conditions in the design polytropic efficiency ηpol = 76.0%, and 74% of the standard gb28381-2012 multi-stage low-speed blower evaluating values of energy.
Fan impeller outlet diameter D2=950mm, outlet width ratio is 0.030, on the design condition variable efficiency η pol=76.0%, reach the standard GB28381-2012 multistage low-speed fan energy-saving evaluation value 74%.
Fan impeller outlet diameter D2=950mm, export-width aspect ratio 0.030, polytropic efficiency in a design condition ¦ç pol=76.0%, meet GB28381-2012 standard multi-level energy saving assessing value for low speed blower 74%.