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Heat Transfer
You have two layer of material to provide insulation. They have heat transfer co-efficient (k1>k2). How will you obtain better insulation?
ronit_hansum
- Mar 17th, 2009
We use the material with low coefficient of heat transfer first then the material with high value of heta transfer coefficient
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Solid Angle
What is the solid angle?
arunkaiprampadan
- Jul 23rd, 2009
The solid angle, Ω, is the angle in three-dimensional space that an object subtends at a point. It is a measure of how big that object appears to an observer looking from that point. For instance, a small object nearby could subtend the same solid angle as a large object far away.
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Heat Transfer
You have two layer of material to provide insulation. They have heat transfer co-efficient (k1>k2).How will you obtain better insulation?
E Smardy
- Mar 22nd, 2013
I dont think you can generalise this problem - at least not for flat plane and cylindrical co-ordinates. It really depends on how much bigger k2 is relative to k1 and how big the pipe thickness is relative to the diameter.
Affwan Hassan
- Jul 8th, 2011
I do have a question here, If the material of lower insulation be bounded to the first system, doesn't that result in heat loss?
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Tractor Wheels
Why is the rear wheel of tractor larger than its front wheel?
Srinivas pilla
- May 20th, 2014
You know tractor takes less space in turnings than other vehicles like buses lorries that's why it has large space at the rare it provides best turning and more secure my advice please watch a tractor while it takes turn try. u know
akash.2929
- Aug 7th, 2009
1. Bigger wheel - more radius hence more torque.2. Bigger base - for farming over fields, to reduce pressure.The front wheels are not changed to avoid unnecessary cost. Even in big carrier trucks one ...
