The pump is operating so that the axial velocity at the inlet to the first stator is 10 m/s . The tangential velocities are zero before the first stator, Vt=−1.2m/s after the first stator, Vt = 1.5 m/s after the rotor, and zero after the second stator. What torque does the fluid exert on the pump's stators? The diameters are d1 = 12 cm and d2 = 16 cm and the fluid density is rho = 1000 kg/m3 .

answer:

200k

explanation:

A Carnot heat engine receives heat from a reservoir at 900$^\circ{}$C at a rate of 800 kJ/min and rejects the waste heat to the ambient air at 27$^\circ{}$C. The entire work output of the heat engine is used to drive a refrigerator that removes heat from the refrigerated space at -5$^\circ{}$C and transfers it to the same ambient air at 27$^\circ{}$C. Determine (a) the maximum rate of heat removal from the refrigerated space and (b) the total rate of heat rejection to the ambient air. Answers: (a) 4982 kJ/min, (b) 5782 kJ/min

it is

Explanation: