Solution Found!
The following data are for a simple steam power plant as
Chapter 4, Problem 118HP(choose chapter or problem)
Problem 118HP
The following data are for a simple steam power plant as shown in Fig. P4.118 State 6 has x6 =0.92 and velocity of 200 m/s. The rate of steam flowis 25 kg/s, with 300 kW of power input to the pump. Piping diameters are 200mmfrom the steam generator to the turbine and 75 mm from the condenser to the economizer and steam generator. Determine the velocity at state 5 and the power output of the turbine.
State 
1 
2 
3 
4 
5 
6 
7 
P, kPa 
6200 
6100 
5900 
5700 
5500 
10 
9 
T, °C 

45 
175 
500 
490 

40 
h, kJ/kg 

194 
744 
3426 
3404 

168 
FIGURE P4.118
Questions & Answers
QUESTION:
Problem 118HP
The following data are for a simple steam power plant as shown in Fig. P4.118 State 6 has x6 =0.92 and velocity of 200 m/s. The rate of steam flowis 25 kg/s, with 300 kW of power input to the pump. Piping diameters are 200mmfrom the steam generator to the turbine and 75 mm from the condenser to the economizer and steam generator. Determine the velocity at state 5 and the power output of the turbine.
State 
1 
2 
3 
4 
5 
6 
7 
P, kPa 
6200 
6100 
5900 
5700 
5500 
10 
9 
T, °C 

45 
175 
500 
490 

40 
h, kJ/kg 

194 
744 
3426 
3404 

168 
FIGURE P4.118
ANSWER:
Solution 118HP
Step 1 of 6
For the given steam power plant, we have to calculate the velocity at state 5 and the output power of turbine.
Given data,
Quality at state 6,
Velocity at state 6,
Rate of flow,
Diameter,
Input power,
Enthalpy at state 5,
State 6 pressure,
To find,
Velocity at state 5,
Output power,