01-Regen Functions

Question 1

Main Condenser

Answer 1

CONDENSES THE EXHAUST STEAM from turbine and increases turbine efficiency by LOWERING THE BACK PRESSURE

Question 2

Make-Up Valve

Answer 2

Automatically MAINTAINS A MINIMUM WATER LEVEL in the main condenser hotwell, BY ADDING WATER WHEN THE LEVEL IS TOO LOW.

Question 3

Dump Valve

Answer 3

Automatically MAINTAINS A MAXIMUMUM WATER LEVEL in the main condenser hotwell BY DRAINING WATER WHEN THE LEVEL IS TOO HIGH

Question 4

Condensate Pumps

Answer 4

REMOVES THE ACCUMULATED CONDENSATE from the main condenser hotwell and DISCHARGES IT TO HRSG LP DRUM

Question 5

Gland Steam Condenser

Answer 5

Provides a low pressure area for turbine gland leak-off steam to exhaust into and TRANSFERS THE HEAT FROM THE LEAK-OFF STEAM TO THE CONDENSATE

Question 6

Steam Jet Air Ejectors

Answer 6

REMOVE AIR AND NON-CONDENSABLE GASES from the main condenser and DISCHARGE THEM TO THE ATMOSPHERE

Question 7

Inter/After Condenser

Answer 7

Provides a low pressure area for the steam jet air ejectors to exhaust into and TRANSFERS THE HEAT FROM THE EXHAUST SYSTEM TO THE CONDENSATE

Question 8

Preheater Recirculation Pumps

Answer 8

PREVENTS COLD END CORROSION in the HRSG by MAINTAINING FEEDWATER TEMPERATURE ABOVE THE EXHAUST GAS DEW POINT TEMPERATURE

Question 9

Boiler Feedwater Pump

Answer 9

Takes heated condensate from the HRSG LP drum and discharges it to the HP and IP steam drums as feedwater; Also supplies water for the HP and HRH steam desuperheaters

Question 10

HRSG (Heat Recovery Steam Generator)

Answer 10

Uses the exhaust gas from the Combustion Turbine to turn feedwater into steam for use in the steam turbine

Question 11

Steam Bypass Valves

Answer 11

Provide the necessary steam flow circuits to warm the HRSG and steam piping during start-ups, and protect equipment from high pressures during unusual operating conditions.

Question 12

Gas Combustion Turbine

Answer 12

Converts the chemical energy of the fuel into rotational mechanical energy

Question 13

Steam Turbine

Answer 13

Converts the thermal energy of steam into rotating mechanical energy

Question 14

Generator

Answer 14

Converts the rotating mechanical energy of a turbine into electrical energy

Question 15

HP and HRH Steam Desuperheaters

Answer 15

Reduces the temperature of HP and HRH steam to maintain a superheater outlet temperature of 1045 F.