blob: a3de9a7fbd4e00d6c84c0006481febf11ad29571 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
|
//Chemical Engineering Thermodynamics
//Chapter 3
//First Law of Thermodynamics
//Example 3.12
clear;
clc;
//Given
W = 0;//pump work
Mi = 0;//chamber is initially evacuated
M2 = 0;//no exist stream
H1 = 684.2;//enthalpy of steam at 200 deg cel & 3 Kgf/cm^2
//To calculate the internal energy of the steam in the chamber
//Q=150*m1;.. (a) heat lost from the chamber in Kcal/Kg
//m1=mf;..(b) mass of steam added from large pipe is equal to steam in chamber
//H1*M1-Q=Mf*Ef; using (a)&(b)
Ef = H1-150;
mprintf('The internal energy of steam in chamber is %f Kcal',Ef);
//end
|
