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a. The design specification for a transmission shaft states that the angle of twist must be no more than 1° over a length 20 times the diameter. Using this specification determine the diameter of a solid steel shaft to transmit 150 kW at a speed of 300 rpm. Take G = 80 GPa.
b. A solid transmission shaft is connected to a pump by a fl anged coupling containing eight 12 mm diameter bolts on a pitch circle of 225 mm diameter. The power transmitted is 110 kW at a speed of 500 rpm and the maximum shear stress in the shaft is to be equal to that in the bolts. It can be assumed that the bolts are loaded in shear only and carry all of the driving torque. Calculate (a) the shaft diameter and (b) the maximum stress in the shaft and bolts.
when using labview applying a voltage to the dc motor and examining its angular rate can be done using the modeling
A window-mounted room air conditioner removes energy by heat transfer from a room and rejects energy by heat transfer to the outside air. The air conditioner cycle requires a power input of 0.434 kW and has a coefficient of performance of 6.22.
A balloon is inflated with helium gas to a pressure of 100 kPa gauge. The volume of the balloon is 0.4m^3. The initial temp is 20 degrees C. The helium gas can be treated as an ideal gas. the atmospheric pressure is 101.3 kPa
a pressure delta p of 50 psi is to be applied to a pipe roughness e0.01 inches length l500 feet to generate a required
these include micrel mm5450 mic5821 allegro a6276ea ucn5832a and texas instruments tpic6c595. these are all serial
Derive an expression for lift co-efficient of a Van de Vooren Airfoil having chord length =2l,thickness parameter E and trailing angle tau. Discuss the effects of E and tau on the lift of Van De Vooren Airfoil.
the condenser of a refrigeration cycle is basically a heat exchanger in which a refrigerant is condensed by rejecting
A PV battery system has an end-to-end efficiency of 77%. The system is used to run an all-AC load that is run only at night. The charge controller efficiency is 96% and the inverter efficiency is 85%. How much energy will need to be gathered by the P..
consider steady two-dimensional heat transfer in a rectangular cross section 60 cm x 30 cm with the prescribed
a long power transmission cable is buried at a depth ground to cable centerline distance of 2 meters. the cable is
A closed, sealed rigid tank contains 1.17 kg water vapor and 11 kg liquid water at equilibrium at a pressure of 2 bar. Two alarms are fitted to the tank: one sounds if the pressure exceeds 10 bar, the other sounds if the temperature exceeds 200 degre..
refrigerant-134a enters the evaporator coils placed at the back of the freezer section of a household refrigerator at
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