1 files changed, 11 insertions, 0 deletions
diff --git a/965/CH2/EX2.66/66.sci b/965/CH2/EX2.66/66.sci
new file mode 100644
index 000000000..e49770c17
--- /dev/null
+++ b/965/CH2/EX2.66/66.sci
@@ -0,0 +1,11 @@
+clc;
+clear all;
+disp("Heat transfer rate")
+disp("k=k1+(k2-k1)*(t-t1)/(t2-t1)")
+disp("A=4*%pi*r^2")
+disp("Q=-k*4*%pi*r^2*dt/dr")
+disp("Q=-(k1+(k2-k1)*(t-t1)/(t2-t1))*4*%pi*r^2*dt/dr")
+disp("Q*dr/r^2 =-(k1+(k2-k1)*(t-t1)/(t2-t1))*4*%pi*dt ")
+disp("By integrating both sides in the limits r1 to r2 and t1 to t2, we get,")
+disp("Q = 4*%pi*r1*r2*(k1+k2)*(t1-t2)/(2*(r2-r1))")
+