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What is the maximum percentage of steam that can be bled without reducing the work output? What is the maximum temperature to which returned water at 60 psia and 60 degrees F can be heated?
92% of the thermal energy supplied by the combustion process heats the water and the remainder leaves the boiler and is lost to the enviroment. What is the volumetric flow rate of methane in m^3 / h
How long will it be before the exiting water reaches 38C (degree celcius). Practically speaking what must occur to satisfy the well stirred aproximation.
What is the electric work of the heater required for this process to occur? What is the entropy change in the process?
The outside diameter of the container is 2m and 500W of heat released as a result of radioactive decay. In the soil surface temperature is 20 C, what is the outside temperature of the container unde
Saturated R-12 enters the compressor at a temperature of -10 C and exits as superheated vapour with a tempertaure of 90 C and a pressure of 1000 kPa. Determine Actual compressor work.
The Upstream flow mach number is 2.4 Calculate the deflection anglee of flow Pressure and temperature ratios across wave and the Mach number behind the wave.
The freestream condition are those for a standard altitude of 3km. Calculate the lift per unit span on the cylinder. (for 3km rho=.90926 kg/m^3).
Determine the actual machining time to make one pass across the surface and the maximum metal removal rate during the cut.
What is the aerodynamic drag force acting on the car at this speed? How much drag torque must be produced by the engine to hold it at this speed?
The tubes have center to center distance of 1.5 inches in the flow direction, 2 inches normal to the flow. Calculate the heat transfer / foot of the tube.
The plates leave a heat treatment oven 300 C and ambient air (20 C) flows over both sides of it. Calculate the initial rate og heat loss from the plate.
The water emerges from the boiler and flows into the turbine at 15 mpa and 500 c. what is the heat transfer to the steam in the boiler.
Consider the non lifting flow over a circular cylinder. Calculate the location on th surfaceof the cylinder where the surface pressure equals the free stream Pressure.
What is the maximum possible power output for the devise and at that power output for this devise what would be the rate of heat transfer to the enviroment.
Estimate the minimum collector area that would be required for a plant producing 1 kW of useful shaft power. The atmospheric temperature may be assumed to be 20degreeC.
If the low temperature reservoir is held fixed at 300 K. what is the minimum temperature possible for the high temperature reservoir?
If their velocities measured relative to the cart are 3ft/s to the right and 2 ft/s to the left, respectively, determine the velocity of the cart while they are walking. They are 20ft apart.
The engine is used to drive an electrical generator that is 60 percent efficient. 1 N-m = 2.78 X 10-4 W-h. Find the output of the generator in Watts.
Derive the governing equilibrium equation in terms of displacement u and the associated boundary conditions. First find the potential energy of deformation, potential energy of forces acting on the
If building code requirements dictate that the temperatures of the irradiated and back surfaces must not exceed 325 C and 25 C, respectively, after 30 min of heating, will the requirements be met?
Determine the velocity of the block after 5 seconds. Assume the force is acting on the box parallel to the horizontal surface and in the direction of the motion.
For an output power of 31.6 hp, we have nm = 1,483 rpm and IA = 145.8 A. The field current remains constant for all parts of this problem. Find the rotational power loss in watts.
Heat transfer from the nozzle to the surroundings is 167 kW. Determine the nozzle exit velocity (m/s) if the mass flow rate is 2.22 kg/s.
Determine the rate of heat transfer (kW) to the high temperature reservoir. Determine the coefficient of performance of a reversible refrigeration cycle (COPR).