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Spherical Pressure Vessels
A large spherical tank (see figure) contains gas at a pressure of 450 psi. The tank is 42 ft in diameter and is constructed of high-strength steel having a yield stress in tension of 80 ksi. Determine the required thickness (to the nearest 1/4 inch) of the wall of the tank if a factor of safety of 3.5 with respect to yielding is required
Considering the flow of a uniform stream of speed V in the x-direction, a source of strength Q at (-1,0) and sink of strength Q at (1,0). Find the velocity potential and the stagnation points
1. An engine using a polyatomic (atoms not in a row) ideal gas is driven by this cycle: from A to B, the pressure increase to 3 times its original pressure while keeping V constant; from B to C, it expands adiabatically until it reaches 4 times th..
two particles are moving along a straight line starting beginning from x0 0 with a velocity of v0 10 at time t 0.
a satellite is in earth with an altitude at perigee of 550 km and an altitude at apogee of 5000 kma what is the
Determine the optimum fin height andthe rate of heat transfer by natural convection from the heatsink if the base temperature is 65°C.
A volcano has erupted, spewing stones, steam, and ash several thousand feet into the atmosphere. After some time, the particles begin to settle to the ground. Consider a nearly spherical ash particle that is 50 microns in diameter, falling in air who..
The school cafeteria has found that they go through 9 sandwiches for every 6 tickets they sell to the students. Today they have 558 sandwiches available. How many lunch tickets can they sell today?
A freely (zero friction) rotating cylinder (mounted on a vertical axis) is placed on a model boat instead of a sail. The Magnus force that is created is used to power the boat. A fan is mounted on the boat to provide airflow over the cylinder.
Air at 20C flows over a very large bank of 2 cm OD tubes that are kept at 100C. the air approaces at an angle of 15 degress off normal to the tubes. the tube array is staggered, with SL= 3.5 CM and ST= 2.8 cm. Find Average h on the first tubes and on..
Also find out a compression ratio and inlet pressure to give maximum imep. engineering fundamentals of internal combustion enignes - pulkrabek.
a rigid insulated vessel is divided into two compartments connected by a valve. initially one compartment occupying
where , and r is the expansion pressure ratio, γ is the ratio of specific heats. An axial flow turbine has a small stage efficiency of 86%, an overall pressure ratio of 4.5 to 1 and a mean value of γ equal to 1.333. Calculate the overall turbine ..
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