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Diffstat (limited to '965/CH2/EX2.11/11.sci')
| -rw-r--r-- | 965/CH2/EX2.11/11.sci | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/965/CH2/EX2.11/11.sci b/965/CH2/EX2.11/11.sci new file mode 100644 index 000000000..dc5ad899b --- /dev/null +++ b/965/CH2/EX2.11/11.sci @@ -0,0 +1,17 @@ +clc;
+clear all;
+disp("Steady state conduction")
+disp("thickness of wall : L")
+disp("temperature of surfaces : t1, t2")
+disp("relation of variation of thermal conductivity : k= k0*t^2")
+disp("i) Expression for heat conduction through wall")
+disp("Heat conduction through plane wall is given by Q = -k*A*dt/dx")
+disp("Heat conduction through plane wall is given by Q = -k0*t^2*A*dt/dx")
+disp("By rearranging and integrating within limits t1 to t2, we get :")
+disp("Required expression, Q =k0*A(t1^3-t2^3)/(3*L)")
+
+disp("ii) Temperature at which mean thermal conductivity be evaluated in order to get the same heat flow by its substitution in simplified Fourier''s equation")
+disp("from above equation k0*A(t1^3-t2^3)/(3*L) = km*A(t1-t2)/L")
+disp("from above equation k0*A(t1^3-t2^3)/(3*L) = k0*tm^2*A(t1-t2)/L")
+disp("thus required temperature is , tm =(((t1^2+t2^2+t1*t2)/3)^0.5")
+
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