diff options
Diffstat (limited to '965/CH2/EX2.50/50.sci')
| -rw-r--r-- | 965/CH2/EX2.50/50.sci | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/965/CH2/EX2.50/50.sci b/965/CH2/EX2.50/50.sci new file mode 100644 index 000000000..9ea452543 --- /dev/null +++ b/965/CH2/EX2.50/50.sci @@ -0,0 +1,27 @@ +clc;
+clear all;
+disp("case 1:to find rate of heat transfer per unit length")
+r1=100/2;//mm inner radius of pipe
+r2=120/2;//mm outer radius of pipe
+kA=185;// W/(m*C) thermal conductivity of pipe material
+thf=110;// degree C
+tcf=30;// degree C
+hcf=15;// W/(m^2*C)
+
+Ql=2*3.1416*(thf-tcf)/((log(r2/r1))/kA+1000/(hcf*r2));
+
+disp("W",Ql,"rate of heat transfer per unit length Ql = ")
+
+disp("case 2:to find rate of heat transfer per unit length")
+
+r3=r2+50;//mm insulation radius
+kA=185;// W/(m*C) thermal conductivity of pipe material
+kB=0.2;// W/(m*C) thermal conductivity of insulation material
+thf=110;// degree C
+tcf=30;// degree C
+
+hcf=15;// W/(m^2*C)
+
+Ql=2*3.1416*(thf-tcf)/((log(r2/r1))/kA+(log(r3/r2))/kB+1000/(hcf*r3));
+
+disp("W",Ql,"rate of heat transfer per unit length of pipe Ql = ")
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