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

---
 1752/CH8/EX8.3/exa_8_3.sce | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100755 1752/CH8/EX8.3/exa_8_3.sce

(limited to '1752/CH8/EX8.3')

diff --git a/1752/CH8/EX8.3/exa_8_3.sce b/1752/CH8/EX8.3/exa_8_3.sce
new file mode 100755
index 000000000..8c4b5b157
--- /dev/null
+++ b/1752/CH8/EX8.3/exa_8_3.sce
@@ -0,0 +1,24 @@
+//Exa 8.3
+clc;
+clear;
+close;
+//given data
+t_hi=110;// in degree C
+t_ci=35;// in degree C
+t_co=75;// in degree C
+Mh=2.5;// in kg/s
+Mc=1;// in kg/s
+Cph=1.9; // in kJ/kg K
+Cpc=4.18;//  in kJ/kg K
+U=300;// in W/m^2 K
+
+// Energy balance Mc*Cpc*(t_co-t_ci) = Mh*Cph*(t_hi-t_ho)
+t_ho=t_hi- Mc*Cpc*(t_co-t_ci)/(Mh*Cph);// in degree C
+del_t1=t_hi-t_co;//in degree C
+del_t2=t_ho-t_ci;//in degree C
+del_tm= (del_t1-del_t2)/log(del_t1/del_t2);
+Cph=Cph*10^3;// in J/kg degree C
+q=Mh*Cph*(t_hi-t_ho);
+//Formula q=U*A*del_tm
+A=q/(U*del_tm);
+disp(A,"Area of the heat exchanger in square meter")
-- 
cgit