subject
Engineering, 13.10.2020 04:01 esanchez2002fcb

The temperature distribution across a wall 0.3m thick ata certain instant of time is T(x)=a+bx+cx^2, where T is in degrees Celsius and x is in meters, a=200 °C, b=-200 °C/m, and c=30 °C/m^2. The wall has a thermal conductivity of 1W/m ·K. Required:
a. On a unit surface area basis, determine the rate ofheat transfer into and out of the wall and the rateof change of energy stored by the wall.
b. If the cold surface is exposed to a fluid at 100 °C, what is the convection coefficient?

ansver
Answers: 3

Other questions on the subject: Engineering

image
Engineering, 03.07.2019 14:10, kayabwaller4589
When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point
Answers: 3
image
Engineering, 04.07.2019 18:10, viicborella
Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.
Answers: 1
image
Engineering, 04.07.2019 18:10, ashleybaber4966
If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79
Answers: 1
image
Engineering, 04.07.2019 18:10, agpraga23ovv65c
Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.
Answers: 2
You know the right answer?
The temperature distribution across a wall 0.3m thick ata certain instant of time is T(x)=a+bx+cx^2,...

Questions in other subjects: