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A six cylinder 2-stroke diesel engine running at 120 rev/min has a bore of 900mm and a stroke of 1300mm. Determine brake power developed.
A refrigerating plant using Refrigerant 134a as the refrigerant operates between an evaporator pressure of 1.0637 bar. Sketch the cycle on a pressure-enthalpy diagram.
A household refrigerator with a coefficient of performance of 2.4 removes energy from the refrigerated space at a rate of 600 KJ/h. Evaluating electricity at $0.08 per determine the cost of electric
A golfer hits a golf ball from point A with an initial velocity of 50m/s at an angle of 25 degrees with the horizontal. Determine the radius of curvature of the trajectory described by the ball at
A closed rigid tank whose volume is 1.5m^3 contains refrigerant 134a, initially a two-phase liquid-vapor mixture at 10 degrees celsius. The refrigerant is heated to a final state where temperature i
Explain what SCM can do and in what it is important that both developers and intended customers insist on SCM.
A ball bearing is moving radially outward in a slotted horizontal disk that is rotating about the vertical Z axis. At one instance, the ball bearing is 3 in. from the center of the disk. It is trave
Can anyone think of a Device that Biomimic the Kinematics of a Dolphin to Enhance Human Swimming? Any slim ideas is acceptable, but it has to be logical.
The modulus of epoxy is 2.41 GPa and the modulus of glass fiber is 72.5 GPa. What volume fraction of glass fiber must the composite have?
The pressure in an automobile tire depends on the temperature of the air in the tire. When the air temperature is 25 °C the pressure gage reads 310 kPa absolute.
Determine (a) the mass flow rate of the refrigerant, (b) the rate of heat supply, (c) the COP, and (d) the minimum power input to the compressor for the same rate of heat supply.
The pistons of a v6 automobile develops 225hp. If the engine drive shaft rotational speed is 4700 rpm and the torque is 248 ft*lbf, what percentage of the developed power is transferred to the driv
The net potential energy between two adjacent ions, EN, may be represented by sum of (-A/r + B/rn). Calculate the bonding energy, Eo, if A = 1.4, B = 5x10-6 & n = 9
Determine the number of kmols of carbon monoxide contained in a 0.27 m3 compressed gas cylinder at 200psi and 72F. Assume ideal gas behavior. Assume atmospheric pressure is 14.7 psi. Also, determin
Determine the heat transfer during an isothermal expansion of 2 lbm of air from 15 ft^3 if the temperature is 110 degrees F and the process is carried out in a closed container.
The ammonia is then cooled so that it is a saturated liquid at 70 degrees farenight. Determine the heat transfer and the work during the process.
In a rigid chamber, 30 lbm of helium is heated from 60 degrees farenhight and 30 psig to 90 degrees farenhight. If atmospheric pressure is 14.7 psia, determine the final pressure and the heat added
A gas is contained in a vertical, frictionless piston-cylinder device. The piston has a mass of 4kg and a cross sectional area of 35cm2. A compressed spring above the piston exerts a force of 60N on
Two possible routes for a power line are under study. Data on the routes are as follows Around the Lake Under the Lake. If 7% interest is used, should the power line be routed around the lake or under
One car P heading North begins at rest and accelerates with acceleration A. The other car Q begins with a velocity of 88ft/s for t=0 -> t=5. At t=5 the car begins to decelerate with magnitude A/6
An ideal combined Rankine cycle contains a reheat and a open feedwater heater, this is also referred to as a regenerative cycle. Steam enters the high pressure turbine at 500psi, 700F and is extract
A closed rigid vessel conatains 3% liguid water and 97% water vapor by volume. The mixture is in equilbrium at 100o C. What is the quality of the mixture?
The water at the constant pressure of 1 bar is incompressible, determine the amount of entropy produced, in kJ/°C, for the water as the system.
In a particular nuclear power plant the reactor is used to heat water to a saturated vapor at 700 psi , this vapor is then fed to another heat exchanger (superheater) that burns coal where it is sup
If we wish to obtain a vapor product with at least 75 mol% meethanol and want to have 30% of the feed vaporized [V/F=0.3], determine the required feed composition.