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

---
 1472/CH25/EX25.3/25_3.sce | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100755 1472/CH25/EX25.3/25_3.sce

(limited to '1472/CH25/EX25.3')

diff --git a/1472/CH25/EX25.3/25_3.sce b/1472/CH25/EX25.3/25_3.sce
new file mode 100755
index 000000000..1ba6e408a
--- /dev/null
+++ b/1472/CH25/EX25.3/25_3.sce
@@ -0,0 +1,31 @@
+clc
+//initialization of varaibles
+disp("From the psychrometric chart,")
+ha=12.9 //B/lb
+g1=0.0032 //lb water/ lb dry air
+g2=0.0078 //lb water/ lb dry air
+hl=13 //B/lb
+hd=25.33 //B/lb
+p=14.7 //psia
+phi=0.6
+cp=0.24
+t2=70 //F
+//calculations
+wl=g2-g1
+Q=hd-ha-wl*hl
+pg=0.1217 //psia
+pa=p-pg
+G1=0.622*pg*phi/pa
+G2=0.00788
+wl2=G2-G1
+t1=40 //F
+hw1=1061.8 + 0.44*t1
+hw2=1092.6 //B/lb
+Q2=cp*(t2-t1) + G2*hw2 -G1*hw1 - wl2*hl
+//results
+printf("Method 1")
+printf("\n Water to be supplied = %.4f lb/lb of dry air",wl)
+printf("\n heat supplied = %.1f B/lb of dry air",Q)
+printf("\n Method 2")
+printf("\n Water to be supplied = %.5f lb/lb of dry air",wl2)
+printf("\n heat supplied = %.1f B/lb of dry air",Q2)
-- 
cgit