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/CH3/EX3.7/Example_3_7.sce | 27 +++++++++++++++++++++++++++ 479/CH3/EX3.7/Example_3_7.txt | 3 +++ 2 files changed, 30 insertions(+) create mode 100755 479/CH3/EX3.7/Example_3_7.sce create mode 100755 479/CH3/EX3.7/Example_3_7.txt (limited to '479/CH3/EX3.7') diff --git a/479/CH3/EX3.7/Example_3_7.sce b/479/CH3/EX3.7/Example_3_7.sce new file mode 100755 index 000000000..81f9e705d --- /dev/null +++ b/479/CH3/EX3.7/Example_3_7.sce @@ -0,0 +1,27 @@ +//Chemical Engineering Thermodynamics +//Chapter 3 +//First Law of Thermodynamics + +//Example 3.7 +clear; +clc; + +//Given +m = 5000;//Amount of steam recived per hour in Kg +H1 = 666;//Specific enthalpy when steam entered in the turbine in Kcal/Kg +H2 = 540;//Specific enthalpy when steam left the turbine in Kcal/Kg +u1 = 3000/60;//velocity at which steam entered in m/sec +u2 = 600/60;//velocity at which steam left in m/sec +Z1 = 5;//height at which steam entered in m +Z2 = 1;//height at which steam left in m +Q = -4000;//heat lost in Kcal +g = 9.81; + +//To calculate the horsepuwer output of the turbine +delH = H2-H1;//change in enthalpy in Kcal +delKE = ((u2^2)-(u1^2)/(2*g))/(9.8065*427);//change in kinetic energy in Kcal; 1kgf = 9.8065 N +delPE = ((Z2-Z1)*g)/(9.8065*427);//change in potential energy in Kcal +W = -(m*(delH+delKE+delPE))+Q;//work delivered in Kcal/hr +W1 = W*(427/(3600*75));//work delivered by turbine in hp +mprintf('Work delivered by turbine is %f hp',W1); +//end \ No newline at end of file diff --git a/479/CH3/EX3.7/Example_3_7.txt b/479/CH3/EX3.7/Example_3_7.txt new file mode 100755 index 000000000..62da72829 --- /dev/null +++ b/479/CH3/EX3.7/Example_3_7.txt @@ -0,0 +1,3 @@ +For Example 3.7, +the answer given in the book is 999 hp but i am getting 990.13329 hp. +There might be some calculation mistake in the book. \ No newline at end of file -- cgit