12 Questions
What is the design pressure of the Foster Wheeler boilers?
The design pressure of the boilers is 76.5 barg.
How many rows of burners are there on the front wall of the furnace in each boiler?
There are three horizontal rows of burners on the front wall of the furnace in each boiler.
What is the capacity of each Foster Wheeler boiler at M.C.R?
Each Foster Wheeler boiler has a capacity of 360,000 Kg/h at M.C.R.
What is the temperature and pressure of the steam supplied from the boilers?
The steam is supplied at 62.0 barg and 4400C.
What is the fuel used to power the Foster Wheeler boilers?
The fuel used to power the boilers is natural gas.
How many pumps are there in each set of the boiler feed water system?
There are three pumps in each set of the boiler feed water system.
What is the function of the forced draught fans in the Foster Wheeler boilers?
The forced draught fans supply air to the burners for combustion.
What is the purpose of the seal air fans in the Foster Wheeler boilers?
The seal air fans inject sealing air to pilot burners and flame detectors.
What is the function of the deaerators in the boiler feed water system?
The deaerators remove dissolved oxygen and carbon dioxide gases from feed water.
What is the purpose of injecting DEHA and ammonia solution in the boiler feed water system?
The DEHA and ammonia solution are injected for scavenging oxygen.
How many steam turbine generators are driven by the steam supplied from the Foster Wheeler boilers?
Two steam turbine generators are driven by the steam supplied from the boilers.
What are the major users of the high-pressure steam supplied from the Foster Wheeler boilers?
The major users of high-pressure steam include process trains, compressors, and utilities.
Study Notes
- Four Foster Wheeler single drum boilers generate steam for LNG Plants Trains 1&2.
- Each boiler has a capacity of 360,000 Kg/h at M.C.R.
- The boilers are natural gas fired with a design pressure of 76.5 barg.
- Each boiler has two sections: the furnace and the heat recovery area.
- Burners are arranged in three horizontal rows on the front wall of the furnace.
- Accessories include forced draught fans, boiler feed water pumps, feed heaters, and seal air fans.
- Steam is supplied at 62.0 barg and 4400C to drive two steam turbine generators and process Train-1&2 compressors.
- The boilers are operated in pairs.
- Fuel is natural gas and routed through knock out drums.
- Three element feed water, fuel combustion, and steam temperature controls are provided.
- Each burner has a manual air register and tertiary air damper.
- Airflow from fans is metered, indicated, and recorded.
- Seal air fans inject sealing air to pilot burners and flame detectors.
- Boiler feed water system is a closed loop system.
- Deaerators remove dissolved oxygen and carbon dioxide gases from feed water.
- DEHA and ammonia solution are injected for scavenging oxygen.
- Six boiler feed pumps are arranged in two sets of three pumps each.
- Steam is supplied from boilers at 62 barg pressure and 4400C temperature.
- High-pressure steam is supplied to two cross-connected headers.
- Major users of high-pressure steam include process trains, compressors, and utilities.
Test your knowledge on Foster Wheeler single drum boilers used in LNG plants! Learn about their capacity, design pressure, sections, accessories, controls, and more. This quiz will challenge your understanding of boiler feed water systems, steam supply, and major users of high-pressure steam. Impress your colleagues with your expertise on natural gas-fired boilers and their crucial role in LNG production.
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