Engineering, 12.08.2019 19:30 xxsyd21

4.6. consider the standard equilibrium heat equation for the temperature of a bar with no source ut = 0 = uxx on x 2 [0; 1]. at x = 0 the flux into the bar fixed f(0) = a, and the x = 1 boundary condition is mixed ktu(l) = kcu0(l). assume kc = 1. show all of your work to calculate the following. (a) solve for the particular solution. (b) using the above, determine the maximum temperature of the bar and describe its relationship to a and kt . (c) determine f(l) a determine dependence on a and kt . (d) explain in physical terms what happens to the boundary flux if limkt! 0+ u(x) =? , and limkt! ¥ u(x) =?

Answers: 1

Show answers

Another question on Engineering

Engineering, 03.07.2019 15:10

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.

Answers: 1

Answer

Engineering, 04.07.2019 18:10

Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges

Answers: 1

Answer

Engineering, 04.07.2019 18:20

Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]

Answers: 1

Answer

Engineering, 04.07.2019 18:20

Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?

Answers: 3

Answer

You know the right answer?

4.6. consider the standard equilibrium heat equation for the temperature of a bar with no source ut...

Questions