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

---
 2870/CH7/EX7.15/Ex7_15.sce | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100755 2870/CH7/EX7.15/Ex7_15.sce

(limited to '2870/CH7/EX7.15')

diff --git a/2870/CH7/EX7.15/Ex7_15.sce b/2870/CH7/EX7.15/Ex7_15.sce
new file mode 100755
index 000000000..dd1db65d2
--- /dev/null
+++ b/2870/CH7/EX7.15/Ex7_15.sce
@@ -0,0 +1,26 @@
+clc;clear;
+//Example 7.15
+
+//given data
+P1=100;
+T1=285;
+P2=800;
+m=0.2;
+nc=0.8;
+
+//from Table A-17
+//at T1
+h1=285.14;
+Pr1=1.1584;
+
+//calcualtions
+Pr2=Pr1*(P2/P1);
+//at Pr2
+h2s=517.05;
+h2a=(h2s-h1)/nc+h1;
+//at h2a
+T2a=569.5;
+disp(T2a,'exit temperature of air in K');
+//Ein = Eout
+Wa=m*(h2a-h1);
+disp(round(Wa),'required power input in kW')
-- 
cgit