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Old Jan 5th 2017, 11:51 AM   #1
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Heat transfer in atmosphere

A cirrus uncinus cloud (a hook-like cloud appearing at an altitude between 5 to 15 km and
indicating a slowly approaching storm) has an average thickness
L 1000m
. The extinction
coefficient for the cloud is
3 -1 2.2 10 m

   e
. The intensity of the irradiation at the top of the
cloud is
2
, qr A
 830 W/m
Determine the time variation of the length-averaged cloud
temperature. Neglect the heat transfer by surface convection and the energy conversion due
to phase change, i.e. the air is in equilibrium with the cloud. Assume that the volume-
averaged density and specific heat of the cloud are
3
  0.8 kg/m
and
 2000 J/(kg K) p
c .
Assume that the surface reflectivity of the cloud is zero.
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Old Jan 5th 2017, 11:53 AM   #2
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Answer

Can any one answer for this question
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Old Jan 7th 2017, 12:13 PM   #3
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I suspect no one can understand what you question is! you appear to be trying to write formulas in a way that the internet will not support.
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Old Jan 9th 2017, 08:24 AM   #4
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Yes your right
I had an issue to type notation
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Old Jan 9th 2017, 08:26 AM   #5
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But u can find the question hear

https://books.google.pl/books?id=dKI4k-9jK88C&pg=PA453&lpg=PA453&dq="energy+conversion+du #v=onepage&q=%22energy%20conversion%20du&f=false

I'm very thankfull if you provide me a solution
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Old Jan 10th 2017, 09:51 AM   #6
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Your link takes us to page 453 of a book that discusses heat transfer of electrical wires - nothing to do with clouds.

If you can type the equations out using LaTeX that would be very helpful. Enclose your equation in [math ] and [/math] tags.
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