Simple HEAT TRANSFER problem

  • #1
I need to use the equation below ( thermal resistance for convection)

R= 1/hA


but I am not given an Area, I am only given 4 meters as a thickness. how do I find A to use for the equation to solve for R.
 

Answers and Replies

  • #2
Mapes
Science Advisor
Homework Helper
Gold Member
2,593
20
How about assuming a width of 1 m? (And this assumption would need to be stated when referring to the resulting R value.)
 
  • #3
28
0
well, if we make up our own are size.... we'll get a resistance per unit area.... so use like 1 m^2 for your area and R will be 1/4 ohm per meter^2

Then if we are actually given an area like 1/2 m^2 we could use the above equation or just times it by 1/4 to get 1/8 ohms.

not sure what else you could do with that given values.

edit: thickness = h .... right?
 

Related Threads on Simple HEAT TRANSFER problem

Replies
8
Views
1K
  • Last Post
Replies
6
Views
8K
  • Last Post
Replies
3
Views
4K
  • Last Post
Replies
0
Views
991
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
7
Views
1K
D
  • Last Post
Replies
21
Views
3K
  • Last Post
Replies
7
Views
2K
  • Last Post
Replies
0
Views
3K
Top