diff options
Diffstat (limited to '965/CH2/EX2.4/4.sci')
| -rw-r--r-- | 965/CH2/EX2.4/4.sci | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/965/CH2/EX2.4/4.sci b/965/CH2/EX2.4/4.sci new file mode 100644 index 000000000..5125628de --- /dev/null +++ b/965/CH2/EX2.4/4.sci @@ -0,0 +1,19 @@ +clc;
+clear all;
+disp("Thickness of brick")
+t1=1325;// degree C
+t2=1200;// degree C
+t3=25 ;// degree C
+L=0.32;// m
+kA=0.84 ;// W/(m*C)
+kB=0.16 ;// W/(m*C)
+// q = (t1-t3)/(La/kA +Lb/kB) = (t1-t2)/(La/kA)=(t2-t3)/(Lb/kB)
+//(1325-25)/(La/0.84+Lb/0.16)=(1325-1200)/(La/0.84)
+//(1325-25)/(La/0.84+(L-La)/0.16)=(1325-1200)/(La/0.84)
+//1300/(1.19La+2-6.25La)=105/La
+La=210/(1300+531.3);//m
+Lb=L-La;//m
+disp("mm",Lb*1000,"thickness of insulation is = ")
+q=(t1-t2)/(La/kA);// W/m*m
+disp("W/m^2",q,"heat loss per unit area is = ")
+
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