The axial flow pump shown above has a propeller with a diameter of d = 130...

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The axial flow pump shown above has a propeller with a diameter of d = 130 mm. When the drive shaft rotates at 2 = 1400 rpm, the pump circulates water around a pipe flow system at a volume flow rate of Q = 0.03 m/s. Under these conditions, the power transmitted to the fluid from the 3-phase motor is P = 1.1 kW. You now need to design a new axial flow pump, which will be used to circulate a 50/50% by weight mix of glycerine/water around a different pipe flow system. The glycerine/water mix has a density of p = 1127 kg/m and a shear viscosity =6 mPa.s. The flow rate needs to be increased to Q = 0.24 m/s and under these conditions, the new pipe flow system has double the head losses of the original pipe flow system. Assuming that your new axial flow pump will use a geometrically similar 5-bladed propeller as shown above, and that the axial flow pump performance is independent of Reynolds number, calculate the following: f) The diameter, d, of the new propeller. Round your answer to the nearest mm. (Your score will not be affected.) Show steps Answer: 260 Round your answer to the nearest integer. g) The angular velocity, S2, of the new propeller. Round your answer to the nearest rpm. Hide steps Lecture 2 and lecture 2a on flow similarity. Try forming a pair of simultaneous equations... Answer: Submit part (Your score will not be affected.) You revealed the steps. Score: 0/4 Answered Round your answer to the nearest integer. Submit part h) The power, P, transmitted to the fluid. Round your answer to the nearest kW. Score: 0/ Unanswere The axial flow pump shown above has a propeller with a diameter of d = 130 mm. When the drive shaft rotates at 2 = 1400 rpm, the pump circulates water around a pipe flow system at a volume flow rate of Q = 0.03 m/s. Under these conditions, the power transmitted to the fluid from the 3-phase motor is P = 1.1 kW. You now need to design a new axial flow pump, which will be used to circulate a 50/50% by weight mix of glycerine/water around a different pipe flow system. The glycerine/water mix has a density of p = 1127 kg/m and a shear viscosity =6 mPa.s. The flow rate needs to be increased to Q = 0.24 m/s and under these conditions, the new pipe flow system has double the head losses of the original pipe flow system. Assuming that your new axial flow pump will use a geometrically similar 5-bladed propeller as shown above, and that the axial flow pump performance is independent of Reynolds number, calculate the following: f) The diameter, d, of the new propeller. Round your answer to the nearest mm. (Your score will not be affected.) Show steps Answer: 260 Round your answer to the nearest integer. g) The angular velocity, S2, of the new propeller. Round your answer to the nearest rpm. Hide steps Lecture 2 and lecture 2a on flow similarity. Try forming a pair of simultaneous equations... Answer: Submit part (Your score will not be affected.) You revealed the steps. Score: 0/4 Answered Round your answer to the nearest integer. Submit part h) The power, P, transmitted to the fluid. Round your answer to the nearest kW. Score: 0/ Unanswere

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