From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001
From: prashantsinalkar
Date: Tue, 10 Oct 2017 12:27:19 +0530
Subject: initial commit / add all books

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 3821/CH11/EX11.7/Example11_7.sce | 34 ++++++++++++++++++++++++++++++++++
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diff --git a/3821/CH11/EX11.7/Example11_7.sce b/3821/CH11/EX11.7/Example11_7.sce
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+///Chapter No 11 Steam Boilers
+////Example 11.7 Page No 234
+///Find Boiler efficiency 
+///Input data
+clc;
+clear;
+E=12;                        //Boiler found steam in Kg/Kg
+CV=35000;                    //Calorific value in KJ/Kg
+ms=15000;                    //Boiler produces in Kg/h
+P=20;                        //Boiler pressure in bar
+Tw=40;                       //Feed water in degree celsius
+mf=1800;                     //Fuel consumption
+
+
+//Calculation
+//R=me(hs-hfw)
+hfw=167.45;                  //In KJ/Kg
+hg=2797.2;                   //In KJ/Kg
+Ts=211.37;                   //In degree celsius
+Cps=2.3;
+R=E*2257;                    //Equivalent evaporation in KJ/Kg of coal
+etaboiler=(R/CV)*100;        //Boiler efficiency in %
+me=ms/mf;                    //Equivalent mass evaporation in KJ/Kg of coal                   
+hs=(R/me)+hfw;               //In KJ/Kg
+Tsup=((hs-hg)/Cps)+Ts;       //Enthalpy of superheated steam in degree celsius
+
+
+
+//Output
+printf('Equivalent evaporation=%f KJ/Kg of coal \n',R);
+printf('Boiler efficiency=%f percent \n',etaboiler);
+printf('Equivalent mass evaporation= %f KJ/Kg of coal \n',me);
+printf('hs=%f KJ/Kg \n',hs);
+printf('Enthalpy of superheated steam=%f degree celsius \n',Tsup);
-- 
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