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

---
 3831/CH15/EX15.11/Ex15_11.sce | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 3831/CH15/EX15.11/Ex15_11.sce

(limited to '3831/CH15/EX15.11/Ex15_11.sce')

diff --git a/3831/CH15/EX15.11/Ex15_11.sce b/3831/CH15/EX15.11/Ex15_11.sce
new file mode 100644
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+++ b/3831/CH15/EX15.11/Ex15_11.sce
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+// Example 15_11
+clc;funcprot(0);
+// Given data
+T=25+273.15;// K
+m_f=0.0100;// kg
+M_octane=114;// kg/kg mole
+R=1545.35;// ft.lbf/(lbmole.R)
+V_p=50.0*10^-3;// ft^3
+R_u=0.0083143;// MJ/kgmole.K
+
+// Calculation
+m_oct=m_f/M_octane;// kgmole
+// The reaction equation for 50.0% excess pure oxygen is C8H18+1.5(12.5)O2--->8(CO2)+9(H2O)+6.25(O2)
+n_CO2=8;// The stoichiometric coefficient of the reaction
+n_H2O=9;// The stoichiometric coefficient of the reaction
+n_O2=6.25;// The stoichiometric coefficient of the reaction
+m_oy=m_oct*(n_CO2+n_H2O+n_O2);// kgmole of product
+n_p=m_oy*2.2046;// lbmole of product
+h_f_C8H18=-249.952;// MJ/kgmole
+h_f_CO2=-393.522;// MJ/kgmole
+h_f_H2O_g=-241.827;// MJ/kgmole
+h_f_N2=0;// MJ/kgmole
+h_f_O2=0;// MJ/kgmole
+N=h_f_C8H18+(0-(1.5*12.5*R_u*T))-(n_CO2*(h_f_CO2-(R_u*T)))-(n_H2O*(h_f_H2O_g-(R_u*T)))-(n_O2*(h_f_O2-(R_u*T)));// The numerator in MJ
+c_v_CO2=0.04987;// MJ/kgmole.K
+c_v_H2O=0.03419;// MJ/kgmole.K
+c_v_O2=0.02468;// MJ/kgmole.K
+D=(n_CO2*c_v_CO2)+(n_H2O*c_v_H2O)+(n_O2*c_v_O2);// The denominator in MJ/K
+T_A_bc=(T-273.15)+(N/D);// °C
+T_A_bc=T_A_bc+273.15;// K
+T_A_bc=T_A_bc*1.8;// R
+P_max=(n_p*R*T_A_bc)/(V_p*144);// psi
+printf("\nThe maximum possible explosion pressure inside the bomb,P_max=%5.0f psi",P_max);
+// The answer vary due to round off error
-- 
cgit