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An insulated piston-cylinder device contains 2L of saturated liquid water at a pressure of 150kPa-which is constant throughout the process.An electric resistance heater inside the cylinder is turned on,and electric work is done on the water in theamount of 2200 kj.Assuming the surrounding to be at 25 degree and 100kPa,determine:
a)The minimum work with which this process could be accomplished.b)The entropy generated during the process.
If the unit can perform its function either in State 1 or 2, find the steady-state availability A for the device.
Characterize the three basic materials (metals, ceramics and polymers) in regarding to modulus of elasticity, strength, ductility and coefficient of thermal expansion.
Determine the coordinates x' and y' of the centroid C of the area shown in the figure and calculate the moments of inertia of the area shown, about ox and oy axes.
Find the capacity of a cylindrical tank that is 250 feet in diameter and 30 feet high? In the above problem, what is the capacity if the tank is 75% full, and what is the capacity in gallons?
Calculate the head provided by the pump and Calculate the brake power required if the pump efficiency is 75% (kW).
The die characteristic is Q_x = 0.0015p where p is the head pressure in psi. Determine the flight angle that maximizes the flow rate Q_x and graph it.
you are designing a remote-area power supply based on a miniature wind turbine that is 20 efficient. meteorological
Determining the largest couple that can be applied to a beam in pure bending. A beam of cross section shown is extruded from an aluminum alloy for which σy = 310 MPa and σu = 480 MPa.
A flat bar is to be rolls but the rolls refuse to bite (the bar is not drawn into the roll gap). State at least two measures that could be taken.
find (a) the power rating of the electric heater and (b) the temperature rise that the air experiences each time it passes through the heater.
A particular grade of Nitinol SMA is capable of upto 6% strain recovery and develops an internal restoration stress of upto 300 MN m-2. Estimate the amount of force and distance of travel that could be triggered by warming a rod
determine the expressions for attractive and repulsive energies, EA and ER as a functions of r where r is in nm and E is in eV.
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