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Carry out the preliminary thermodynamic design of a fuel mixing valve for a furnace that efficiently mixes inlet flow streams of air at 2.50 kg/s and methane at 0.500 kg/s, both at atmospheric pressure and temperature, and produces one outlet flow stream.
Assume these gases behave as constant specific heat ideal gases. Provide a dimensioned engineering sketch and estimate the entropy production rate of your valve.
Verify that heating the wire may be treated as a lumped-capacity process, find the steady-state temperature of the wire and find how long it takes for the temperature of the wire to reach 100°C.
A column has the dimensions shown in the diagram below. What is the minimum length of the column at which buckling is likely to occur. If the column is the length determined in (a)
Calculate the expected flow rate in m3 /h. Neglect minor losses.
two particles of equal weight are released from rest on a 35 degree incline when they are 20 m apart. the coefficient
If the lift L is a function of the free-stream velocity U∞, density ρ, chord c, angle of attack α, and viscosity ν, what are the dimensionless groups (π parameters) that characterize this problem?
Taking the average thermal efficiency to be 34 percent, determine the amount of thermal energy rejected by the coal-fired power plants in the United States that year.
consider a naca 1408 airfoil in low speed flow at zero degrees angle of attack and a reynolds number of 8.9 acute106.
problem 1 a 10-minute experimental run shows that 75 of liquid reactant is converted to product by a half-order rate.
The purification of hydrogen gas is possible by diffusion through a thin palladium sheet. Calculate the number of kilograms of hydrogen that pass per hour through a 5.5-mm-thick sheet of palladium having an area of 0.84 m2 at 500°C.
in cooling situations where the desired temperature range is large two refrigeration cycles can be stacked to create a
a new building to be located in a cold climate is being designed with a basement that has an l 200-mm-thick wall. inner
r-134a at 20 psia and 40of is compressed slowly adiabatically and without friction to a final pressure of 200 psia.
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