blob: 564f93cfd1e4819fa5527efe817430ccf97aa085 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
clear;
clc;
// Example: 7.11
// Page: 281
printf("Example: 7.11 - Page: 281\n\n");
// Solution
//*****Data******//
P1 = 100;// [kPa]
T1 = 200;// [OC]
U1 = 190;// [m/s]
A1 = 2000/10^4;// [square m]
U2 = 70;// [m/s]
P2 = 200;// [kPa]
Qdot = 100;// [kW]
V1 = 2.172;// [cubic m/kg]
H1 = 2875.3;// [kJ/kg]
//***************//
// Solution (a)
mdot = U1*A1/V1;// [kg/s]
printf("Mass flow rate of the steam is %.2f kg/s\n",mdot);
// Solution (b)
// Amount of heat transferred to the surrounding per unit steam:
Q = Qdot/mdot;// [kJ/kg]
// The Enthalpy at the diffuser outlet can be estimated as:
H2 = Q + H1 + (U1^2 - U2^2)/2;// [kJ/kg]
// From the steam table:
T2 = 393.38;// [K]
V2 = 1.123;// [cubic m/kg]
printf("The temperature of the steam leaving the outlet is %.2f K\n",T2);
// Solution (c)
A2 = V2*mdot/U2;// [square m]
printf("Area of diffuser outlet is %.2f square m\n",A2);
|