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Calculate the quality if saturated or the temperature if superheated of the steam as it loves the nozzle and the same values If the nozzle lost heat during the flow process at 100 kj/kg.
A 2mm diameter metor of specific gravity 2.9 has a speed of 6 km/s at an altitude of 50,000m where the density of air is 1.03x10^-3 kg/m^3.
Show the cycle on a T-s diagram with respect to saturation lines and including both isobars. Determine the amount of work required to operate the A/C if all processes are ideal. [Btu/min].
Show the cycle on a T-s diagram with respect to saturation lines and including both isobars. Determine the maximum amount of work that can be extracted from the Rankine power cycle (kW).
Determine the maximum theoretical speed that may be achieved over a distance of 360ft by a car of weight W starting from rest assuming there is no slipping.
Determine the principle stresses and the maximum shear stress at a typical point A on the surface of the shaft of the auger near the power unit.
Determine the maximum span, Lmax, of a simply supported log beam that must support a uniformly distributed load w (including beam weight) without exceeding the allowable shear stress, Tallow.
Using constant specific heats evaluated at 300 K, determine the total entropy production (kJ/K) after an hour assuming thermal equilibrium is achieved.
he drive sprocket has 19 teeth and the sprocket on the mixer has 84 teeth. Determine the speed of the drive sprocket, the chain speed, and the recommended lubrication method.
It has been determined that a point in a load-carrying member is subjected to the following stress condition. Draw the complete Mohr's circle, labeling critical point.
What maximum load can the member take before buckling would be expected? b. Also compute the allowable load on the column for a design factor of 3.
Assume constant specific heats where Cwater = 4.179 kJ/kg-K and CCu = 0.385 kJ/kg-K. Determine the total entropy production (kJ/K) after one hour assuming thermal equilibrium is achieved.
Determine the time taken for the product to freeze if it is at its initial freezing point when it was placed in the blast freezer.
Determine the stream ecomomy of the system. Assume that the specific heat of the solids is 3000 J/kg K and that of water is 4,180 J/kg K.
Compute the desities of totally crystalline and totally amorphous nylon 6,6. Determine the density of a specimen having 55.4% crystallinity.
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Assume constant specific heats where Cwater = 4.179 kJ/kg-K and CCu = 0.385 kJ/kg-K. Determine the final equilibrium temperature (K).
A piston-and-cylinder device contains 10 kmol of n-pentane at -35.5 C and 100 bar. How much heat must be supplied for the process to be isothermal?
During the expansion some of the water evaporates, but no heat is transferred to the cylinder. Find the temperature, pressure, and amounts of vapor, liquid, and solid water present after the expansi
Between the inlet and an axial location of 2 feet, the air is heated uniformly at a rate of 891.9 Btu/hr-ft2. Determine the temperature of the pipe wall at the 2-foot location.
Determine the back work ratio and the thermal efficiency of the cycle, assuming (a) no regenerator is used and (b) a regenerator with 75 percent effectiveness is used. Use variable specific heats.
What is the pump inlet condition for a Rankine cycle? the heat added by the boiler (kJ/kg); the cycle efficiency; the efficiency of a Carnot cycle operating between the same temperature limits.
It is necessary to maintain a pressure of 180 psi at the snow making machine. Determine the horsepower added to the water by the pump. Neglect minor loses.
Show that the moment of inertia of n particles each of mass (1/n)*m rotating about some point O at a distance R with the same angular speed w is I = mR^2.
The prevailing wind velocity is 50 km/h. The atmosphere is in a condition of neutral stability. Calculate the height of the gas plume by two methods.