Condensate/gland steam
What is the purpose of the vacuum breaker?
break the vacuum inside of turbine by an exposure to the atmosphere
How is CCW cooled?
Air cooled heat exchanger (ACHE)
In normal operation, how does the BFP operate?
suction from LP drum
discharges to IP and HP
What is the purpose of the BOP systems? (Balance of Plant)
Balance of plant systems are used to support the operation of the main equipment
What was the name of the man who founded Entergy? (think furniture)
Harvey Couch
What is the purpose of the ECA cooler?
The ECA utilizes condensate as the cooling medium to cool the CT combustors and the ACC blade rings
How many ACHE units will dbaps have?
14
What is the purpose of duct burners?
to burn extra fuel to raise the temperature of the exhaust to increase the steam production
What is the definition of BTU?
amount of energy necessary to raise the temperature of 1 pound of water, 1 degF
Originally known as Arkansas Power and Lights, what year was Entergy founded?
1913
Which should be placed in service first? Gland steam seals or turning gear?
turning gear-to prevent unequal heating of the rotor surface near the glands
The CCW return header
What is the definition of superheated steam?
The step-up transformers connect the plant to the grid for exporting power or back feed
Which was formed after AP&L? Mississippi Power and Lights or Louisiana Power and Lights
Mississippi Power and Lights
How does the gland steam condenser maintain a slight vacuum?
exhaust fans- one in operation, one in standby
CCW is designed to deliver water at what temp range?
70-100degF
During fill of the feedwater system, how should the low point vents and high point vents be lined up? and why
All low point drain valves should be closed, all high point vents should be opened to evacuate air/vapor in the piping system
Every plant is required to be equipped with a continuous monitoring system that samples the exhaust gases at the gas turbine stacks, what is this system?
CEMS
Continuous emissions monitoring system
What does MISO do?
an organization that manages the flow of power on the grid and operates markets for the purchase and sale of electricity.
The condensate discharge sample point monitors what parameters?
Ph, Silica, Sodium, conductivity, dissolved oxygen
Glycol is added to the CCW system, what is the purpose?
Glycol provides a lower freezing point, higher boiling point, decreases the vapor pressure in the fluid, and acts as a corrosion deterrent
How many HP Superheaters are there?
3
What is a combined cycle?
combined cycle power plant captures exhaust heat from the gas turbine to run a steam turbine for extra power
18 years