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The crankshaft of a single-cylinder air compressor rotates 1800 rpm. The piston area is 2000 mm2 , and the piston stroke is 50 mm. Assume a simple "idealized" case where the average gas pressure acting on the piston during the compression stroke is 1 MPa, and pressure during the intake stroke is negligible. The compressor is 80% efficient. A flywheel provides adequate control of speed fluctuation.
(a) What motor power (kW) is required to drive the crankshaft?
(b) What torque is transmitted through the crankshaft?
The purpose of the flexible shaft is quite obvious in such an arrangement. Indicate the purpose of the flexible coupling. Could a flexible coupling be used with a rigid shaft instead of a flexible shaft?
an oil pipeline was constructed to transport an oil with sg 0.8 for a distance of 10 miles. the country was hilly so
A 50 x 50 cm duct is 10 m in length. Nitrogen enters at M1 = 3.0 and leaves at M2 = 1.7, with T2 = 280 K and P2 = 7 x 104 N/m2. Find the static and stagnation conditions at the entrance.
question 1approximate the torque and power necessary to rotate the inner 20 cm diameter cylinder shown in figure 1. sae
an ocean thermal energy conversion otec system is proposed to generate 10 mw of electricity. the proposed location of
Repeat (a) for a maximum resistance of 0.003 Ω, d = 30 ft, and a maximum current of 110 A.
jet engine cowlings use 5 micrometer diameter whisker filaments of sic that are coated in 3 micrometer of aluminum
Determine the natural circular frequency of the disk for small oscillations by the energy method. Use the following data: W = 180 N, R = 0.6 m, k = 0.5 m (radius of gyration about G), k1 = 450 N/m, and k2 = 600 N/m.The mass center of the unbalanced..
the air in a room has a dry-bulb temperature of 22 c and a wet-bulb temperature of 16 c. assuming a pressure of 100 kpa
an air conditioner running with r-134a on a cycle executed under the saturation dome between the pressure limits of 0.8
a bus starts from rest on a 200 m radius curve and accelerates with its speed increasing at at 2 ms2. determine the
If the plate is stationary, calculate a) the force exerted on the plate in the direction of the jet and b) the ratio between the quantity of fluid that is deflected upwards and that downwards
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