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A cylindrical tank with diameter d = 18 in. is subjected to internal gas pressure p = 450 psi. The tank is constructed of steel sections that are welded circumferentially (see figure). The heads of the tank are hemispherical. The allowable tensile and shear stresses are 8200 psi and 3000 psi, respectively. Also, the allowable tensile stress perpendicular to a weld is 6250 psi.Determine the minimum required thickness tmin of
(a) the cylindrical part of the tank and
(b) the hemispherical heads.
Consider a power plant operating on an ideal Rankine cycle without feed water heating. Steam enters the turbine saturated at 1000F at the rate of 5 x10 lbm/H. The turbine exhausts to a surface condenser at 1 psia. The condenser has an overall heat tr..
estimate the rate of heat loss due to radiation from a covered pot water 95 c .how does this compare with the 60 w lost
a charge of -8.1 microc is traveling at a speed of 8.7 106 ms in a region of space where there is a magnetic field. the
A 15 m/sec wind at 101.3 kPa and 20 degrees Celeus enter a two-bladed wind turbine with a diameter of 15 m. Calculate the following. The power of the incoming wind. The theoretical maximum power that could be extracted
The joint of a space frame is subjected to four member forces. Member OA lies in the x-y plane and member OB lies in the y-z plane. Assume that F = 170lb. Determine the force F1 acting in OA member required for equilibrium of the joint.
three kilograms of air is in a pistoncylinder keeping constant pressure at 27 celsius 300 kpa. it is not heated to
1. Sketch portions of a linear polypropylene molecule that are (a) syndiotactic, (b)atac- tic, and (c) isotactic. 2. Sketch cis and trans structures for (a) buta- diene, and (b) chloroprene.
a small household refrigerator is used to cool 20 liters of water initially at 22c. the cop of the refrigerator is 2.40
100kpa and 22 degc air is contained in a rigid tank of 2 m3. there is supply line connected to the tank through a
for the case study problem design the output shaft including complete specification of the gear bearings key retaining
five kilograms of saturated vapor water at 1 mpa is contained in a cylinder fitted with a movable piston. this system
What is the minimum possible curvature of the glass layer of the thickness L before it cracks (fig. 3.33), if the critical tensile stress is σ* and the Young modulus is E? On which surface does the crack initiate?
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