TCC 103 Steam Drum

The primary function of the STEAM DRUM is to _____________

• mix steam and water

• separate steam from water

• burn the fuel

What is in the picture?

• steam turbine

• steam drum

• generator

Steam leaving the drum should be __________ moisture free

• 99.99%

• 20%

• 80%

• 95%

Solids in the steam must be less than _____.

• 500,000 ppm

• 10000 ppm

• 500 ppm

____________ removes cumulative amounts of concentrated solids

• TRUE

• continuous blowdown

• pressure gauge

what device is shown in the picture?

• safety valve

• steam drum

• superheater

PARALLEL Superheater

• the direction of steam flow is opposite with the direction of flue gas

• the direction of steam flow is the same with the direction of flue gas

• the direction of steam flow is the same and opposite with the direction of flue gas

COUNTERFLOW Superheater

• the direction of steam flow is opposite with the direction of flue gas

• the direction of steam flow is the same with the direction of flue gas

• the direction of steam flow is the same and opposite with the direction of flue gas

RADIANT Superheater

• located somewhere in the flue gas flow, where it absorbs heat by convection

• located in or near the furnace and receives heat transfer by radiation

• located inside the steam drum

CONVECTIVE Superheater

• located somewhere in the flue gas flow, where it absorbs heat by convection

• located in or near the furnace and receives heat transfer by radiation

• located inside the steam drum