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Determine the power needed to drive the pump if the pump isentropic efficiency is 87%. Also determine the outlet temperature of the water.
Determine the absolute pressure of the water at the ground level. Atmospheric pressure is 101.325 kPa. Acceleration due to gravity is 9.81 m/s2.
The gap between the two plates is h = 0.005 m. The fluid has a viscosity of 2 N-s/m2. Assume the fluid is Newtonian. Calculate the shear stress acting on the top and bottom surfaces (at y = 0 and y =
Hydrogen at 25 bar, 450°C enters an adiabatic turbine and expands to 2 bar, 160°C with a mass flow rate of 0.2 kg/s.
Determine (a) the temperature of the refrigerant exiting the compressor, in °C (b) the power input to the compressor, kW and (c) the rate of entropy production kW/K.
This member is to be designed according to maximum shear stress criterion, with a safety factor of 2. What is the minimum allowable cross-sectional dimension, b?
Determine the power (kW) for the compressor if the inlet volumetric flow rate is 0.178 m3/s. Use constant specific heats evaluated at 300 K.
At the exit, the pressure and quality are 200 kPa and 0.66, respectively. Determine the power produced (kW) by the turbine if the mass flow rate is 1.82 kg/s.
Some gamma rays with a total energy of 4 MeV. What is the second fission fragment, and what is the total kinetic energy of the two fission fragments.
This nuclide is produced by the endoergic reaction 16^O(n,p)16^N. What is the minimum energy of the neutron needed to produce 16^N?
During this process heat is transferred to the air from a reservoir having a temperature of 80C. Determine the amount of heat transferred to the air during the process (in kilojoules) and the work.
The platform oscillates with amplitude of 5mm. When the speed is 1000 rpm, the amplitude is 14 mm. Determine the natural frequency of the system and the spring constant of the frame.
Determine the volumetric flow rate of air entering the dryer if 4.5 kg/min of water must be removed from the product in the dryer.
A force of 10 lb is requred to maintain the spring in firing position when the length of the spring is 1 in. Determine (a) the velocity of the bullet as it leaves the gun, (b) the maximum height rea
Determine the time required for the motion to stop. What are the horizontal and vertical components of reaction which the pin at A exerts on AB durin this time? Neglect the mass of AB.
How much water must be removed and how much heat transfer must take place if the volumetric flow rate is 600 m^3/min at a pressure of 1 atm?
Determine (a) the maximum temperature in the cycle, (b) the net work output and the thermal efficiency, (c) the mean effective pressure and (d) the net power output.
The hydrogen enters at 0.14 MPa, 40 degrees C, and the nitrogen at 0.14 MPa at 250 degrees C. The pressure after mixing is 0.12 MPa. Determine the exit temperature and the entropy production per kg
Calculate the average thrust T during this period. The masses of the third and fourth stages at seperation are 40 kg and 60 kg, respectively.
One example is 84 percent methane, 14.8 percent ethane, .70 percent carbon dioxide, and .50 percent nitrogen by volume. Calculate the specific heats, the molecular weight, and the k value for this m
Sketch the cycle on a T-s diagram with respect to saturation lines and determine (a) the rate of the heat input to the working fluid, in kW.
Determine (a) the maximum temperature in the cycle, the net work output and the thermal efficiency, the mean effective pressure and (d) the net power output.
The specific humidity on leaving is decreased to one-third of that on entering. The relative humidity on leaving is 100 percent, and the pressure is 14.7 psia. Determine the required heat-transfer r
A pump steadily delivers 15.2 kg/s of water at the conditions given below. Calculate the pump power (kW). There is no heat transfer from the pump to the surroundings (i.e., adiabatic conditions).
Determine the speed of the cam and use the motion equations and a spreadsheet to plot a displacement diagram of the follower.