Turbine 8

Question 1

Temps of hrsg 8 C.O.S. heater

Answer 1

In=120-130
Out= 220-230

Question 2

Hrsg 8 temps of low and hight temp economizer

Answer 2

In temp 250°
Out temp 325°
Hight temp economizer out 460°

Question 3

High temp F.W. heater temps

Answer 3

In temp 325°
Out temp 440°-460°f

Question 4

Hrsg 8 drum temps

Answer 4

In 440°-460°

Question 5

Hrsg 8 low and high temp super heater temps

Answer 5

In 460°
Out temp 750°-775°f

Question 6

Steam cycle for turbin 8 from cst to cst

Answer 6

Condensate storage tank to
Condensate pumps to
Condensate heater to 3way temp control valve to DA LCV to DA 8 to BFWPs through boiler LCV through low temp economizer then through Hight temp economizer in to boiler drum to low temp super heater through Hight temp super heater to steam header 8 in bull pen to turbines to Condensor then to hot well to hot well pumps then to air ejector back to C.S.T.

Question 7

Steam cycle for 10 using 8 htfwheater

Answer 7

CST to COS pumps to COS heater then to 3 way temp C.V. to DA LCV to DA 7 or 10 to boiler feed water pumps to high temp FW-heater to extraction feed water heaters to boiler drum to super heaters in boiler 3 or 7 to steam header 7/3 to turbines to condensore to hotwell to hotwell pumps to air ejector

Question 8

Turban 8 lube oil system main pump discharge/bearing seal oil/bearing oil header psi

Answer 8

Discharge psi= 100
Bearing seal oil psi= 68
Bearing oil header psi= 17

Question 9

Primary aux oil pump psi

Answer 9

Discharge psi=97
Bearing seal oil psi=68
Bearing oil header psi=17

Question 10

Emergency oil pump psi turbin 8

Answer 10

Discharge psi= 15
Bearing seal oils psi= 11
Bearing oil header psi= 11

Question 11

Secondary aux oil pump psi GT8

Answer 11

Discharge pressure= 50
Bearing seal oil psi= 17
Bearing oil header psi= 12