do anyone understand one dimensional steady state conduction?

logistic_guy

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this is the question

Consider the plane wall of Figure 3.1, separating hot and cold fluids at temperatures T,1\displaystyle T_{\infty,1} and T,2\displaystyle T_{\infty,2}, respectively. Using surface energy balances as boundary conditions at x=0\displaystyle x = 0 and x=L\displaystyle x = L (see Equation 2.34), obtain the temperature distribution within the wall and the heat flux in terms of T,1\displaystyle T_{\infty,1}, T,2\displaystyle T_{\infty,2}, h1\displaystyle h_1, h2\displaystyle h_2, k\displaystyle k, and L\displaystyle L.

i know the two of the formulas, but i can't find Equation 2.34

temperature distribution
T(x)=C1x+C2\displaystyle T(x) = C_1x + C_2

heat flux
qx=kdTdx=kC1\displaystyle q^{''}_x = -k\frac{dT}{dx} = -kC_1

if anyone know how to solve this, i show picture
 
this is the question

Consider the plane wall of Figure 3.1, separating hot and cold fluids at temperatures T,1\displaystyle T_{\infty,1} and T,2\displaystyle T_{\infty,2}, respectively. Using surface energy balances as boundary conditions at x=0\displaystyle x = 0 and x=L\displaystyle x = L (see Equation 2.34), obtain the temperature distribution within the wall and the heat flux in terms of T,1\displaystyle T_{\infty,1}, T,2\displaystyle T_{\infty,2}, h1\displaystyle h_1, h2\displaystyle h_2, k\displaystyle k, and L\displaystyle L.

i know the two of the formulas, but i can't find Equation 2.34

temperature distribution
T(x)=C1x+C2\displaystyle T(x) = C_1x + C_2

heat flux
qx=kdTdx=kC1\displaystyle q^{''}_x = -k\frac{dT}{dx} = -kC_1

if anyone know how to solve this, i show picture
Please show us your attempts on problems when you post them.
 
Last edited by a moderator:
thank you for interest. i'll try to find the equation 2.34 and upload the picture of the quesition
 
if anyone know how to solve this, i show picture
I am a little rusty in topics related to the Thermodynamics, but I will try to look it up for you. No promises that I will be able to solve it, but I think that it is not very difficult as it is obvious they want you to find C1C_1 and C2C_2.

I know that the probability is very high that I will not be able to understand the figure, but it will not be a bad idea to show it.

Mario, Dan's student

😎
 
Last edited by a moderator:
this is the question

Consider the plane wall of Figure 3.1, separating hot and cold fluids at temperatures T,1\displaystyle T_{\infty,1} and T,2\displaystyle T_{\infty,2}, respectively. Using surface energy balances as boundary conditions at x=0\displaystyle x = 0 and x=L\displaystyle x = L (see Equation 2.34), obtain the temperature distribution within the wall and the heat flux in terms of T,1\displaystyle T_{\infty,1}, T,2\displaystyle T_{\infty,2}, h1\displaystyle h_1, h2\displaystyle h_2, k\displaystyle k, and L\displaystyle L.

i know the two of the formulas, but i can't find Equation 2.34

temperature distribution
T(x)=C1x+C2\displaystyle T(x) = C_1x + C_2

heat flux
qx=kdTdx=kC1\displaystyle q^{''}_x = -k\frac{dT}{dx} = -kC_1

if anyone know how to solve this, i show picture
How are you working on this question when you cannot understand this one, which is at least 2 years less advanced?

-Dan
 
How are you working on this question when you cannot understand this one, which is at least 2 years less advanced?

-Dan
my main courses need understanding algebra, physics, calculus, and other beginning course. i don't understand the main idea of algebra, physics, calculus, so i repeat this courses as advise from the teacher

look at my heat transfer course, it have formulas similar to calculus. i don't understand why, but i think there is main idea which i still don't understand. i understand little but confusing. at least now i understand some of physics graphs for the first time because The Highlander give nice explanation in other post
 
I am a little rusty in topics related to the Thermodynamics, but I will try to look it up for you. No promises that I will be able to solve it, but I think that it is not very difficult as it is obvious they want you to find C1C_1 and C2C_2.

I know that the probability is very high that I will not be able to understand the figure, but it will not be a bad idea to show it.

Mario, Dan's student

😎
thank you

11111.png
 
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