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Find the kinetic energy in Btu. If this bullet was fired into 1 lbm of water at room temperature and all of the kinetic energy was converted into increasing the temperature of the water.
The steam exits at a temperature of T2=20 degrees. Find the exit pressure (kPa) and the power produced by the turbine (MW).
If the work output of the engine 1 is twice more than that of engine 2, determine a. the intermediate temperature b. the heat rejected to the cold sink c. the efficiency of each heat engine.
A heat-engine of 32% thermal efficiency is used to drive a refrigerator having coefficient of performance of 5. Determine the heat input into the engine for each MJ removed from the refrigerated spa
Determine a) the modulus of elasticity, b) the engineering stress, c) true stress, d) engineering strain, and e) true strain.
If the local atmospheric pressure is 99.5 kPa, what is the absolute intake manifold pressure in kPa. Show all your steps clearly.
At what rate must the chiller dump energy to the environment in BTU/hr to satisfy the first law of thermodynamics for that device?
A machinable grade of aluminum is to be milled on an NC machine with a 20 mm diameter four tooth end miling cutter, Cutting speed = 120 m/min and feed = 0.008 mm/tooth.
Estimate the flaw size responsible for the failure of a turbine rotor made from high strength steel having a yield strength of 1660 MPa and a fracture toughness of 210 MPm.
Find a unique four-bar mechanism. Sketch the mechanism and provide a short description about the function and purpose of your four-bar mechanism.
Then in another 4s it moves from Sb to Sc +2.5 m. Determine the particle's average velocity amd average speed during the 6-s time interval.
A steam pipe of 120 mm outside diameter and is covered with a 20 mm thick layer of calcium silicate insulation (k = 0.089W/m * K ). Determine the heat rate per unit length from the pipe (W/M) and th
At time t=0, the velocity of the particle = 4m/s, and the time t=30s the velocity = 26m/s and displacement at time t = Dt metres. Derive expressions for both velocity and displacement as a function
Find the net amount of new disorder created and the irreversibility of the process. What might account for the calculated irreversibility and how could it be reduced?
The inlet temperature is 1000 K and the exhaust pressure is 100 kPa. Find the required inlet pressure and the exhaust temperature. Assume air is an ideal constant-Cv0 gas.
10 kg of gaseous oxygen is compressed in a piston-cylinder device from an initial state of .8 m^3/kg, to a final state of .1 m^3/kg, 287 deg C.
Find the rate of heat transfer from the ball bearings and the rate of production of new disorder in this quenching process.
The other of which is at .6 MPa, 600 deg C, mix adiabatically in a steady-flow process to produce a single outflow at .6 MPa, 400 deg C. Find the rate of generation of new disorder per unit outflow
It is estimated that the isentropic efficiency of the turbine is 70%. What is the maximum turbine inlet pressure if the exhaust is not to be in the two-phase region?
Steam flows steadily into a turbine at 2 MPa and 400 deg C, at a flow rate of 25 kg/s. If the turbine is adiabatic and the steam leaves the turbine at 100 kPa, what is the maximum power output of t
If the specific ratio is the same, what is the compression ratio for the air-standard Otto cycle that will provide the same efficiency as the Brayton cycle?
If the specific ratio is the same, what is the pressure ratio for the air-standard Brayton cycle that will provide the same efficiency as the Otto cycle?
In a cogeneration scheme, a Diesel engine-generator is used. The Diesel engine-generator is rated at 2000 kWe. What is the total efficiency of the cogeneration scheme?
Steam at 35 bar and 600 degree K enters a throttling valve that reduces the steam pressure to 7 bar. Assuming there is no heat loss from the valve, what is the exit temperature of the steam and its
Design considerations limit the maximum normal stress is 74 ksi, the maximum shearing stress is 40 ksi, the maximum normal strain to 2200 uin/in and the maximum shearing strain to 2500 ur ad.