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 --- 479/CH13/EX13.18/Example_13_18.sce | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100755 479/CH13/EX13.18/Example_13_18.sce (limited to '479/CH13/EX13.18/Example_13_18.sce') diff --git a/479/CH13/EX13.18/Example_13_18.sce b/479/CH13/EX13.18/Example_13_18.sce new file mode 100755 index 000000000..748a8434e --- /dev/null +++ b/479/CH13/EX13.18/Example_13_18.sce @@ -0,0 +1,33 @@ +//Chemical Engineering Thermodynamics +//Chapter 13 +//Thermodynamics in Phase Equilibria + +//Example 13.18 +clear; +clc; + +//Given +T1 = 273-87;//temp in K +T2 = 273;//temp in K +H1 = 115;//Latent heat of saturated ethane at 1 atm and -87 deg cel in Kcal/Kg +H2_ex = 72.44;//Experimental value of latent heat at 0 deg cel in Kcal/Kg +Tc = 306;//Critical temperature in K +M = 30;//Molecular weight of ethane + +//To Calculate the latent heat of saturated ethane at 0 deg cel +Tr1 = T1/Tc;//reduced temp in K +Tr2 = T2/Tc;//reduced temp in K +//(i)Using Waton's method: +H2_c = H1*((1-Tr2)/(1-Tr1))^0.38; +mprintf('(i)The latent heat of saturated ethane at 0 deg cel using Waton method is %f Kcal/Kg',H2_c); +D = (H2_ex-H2_c)*100/H2_ex; +mprintf('\n The deviation occurs using this method is %f percent',D); + +//(ii)Using Vishwanath and Kuloor method +//From equation 13.117 (page no 289) +n = (0.00133*(H1*M/T1)+0.8794)^(1/0.1); +H2_c = H1*((1-Tr2)/(1-Tr1))^n; +mprintf('\n\n(ii)The latent heat of saturated ethane at 0 deg cel using Vishwanath and Kuloor method is %f Kcal/Kg',H2_c); +D = (H2_ex-H2_c)*100/H2_ex; +mprintf('\n The deviation occurs using this method is %f percent',D); +//end \ No newline at end of file -- cgit