From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 1073/CH2/EX2.15/2_15.sce | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100755 1073/CH2/EX2.15/2_15.sce

(limited to '1073/CH2/EX2.15/2_15.sce')

diff --git a/1073/CH2/EX2.15/2_15.sce b/1073/CH2/EX2.15/2_15.sce
new file mode 100755
index 000000000..5d3837479
--- /dev/null
+++ b/1073/CH2/EX2.15/2_15.sce
@@ -0,0 +1,17 @@
+//Example 2.15
+printf("Example 2.15 \n")
+A=1  // [sq m]
+  x1=0.1    //m
+  x2=0.04
+  k1=0.7
+  k2=0.48
+  sigma=x1/(k1*A)+x2/(k2*A)   //K/W
+  //Q=4.42*dT
+  //Q=dT/sigma
+  //with rockwool insulation added,Q_dash=0.75*Q
+ k3=0.065     // W/(m.K)
+  //Q_dash=dT/sigma+x3/k3*A
+  //On solving Q and Q_dash we get
+  x3=((1/(0.75*4.42))-sigma)*k3    //[m]
+  x3=x3*1000     // [mm]
+  printf("Thickness of rockwool insulation required=%f mm",x3)
\ No newline at end of file
-- 
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