|
|
|
 |
Stage I
|
Key Design
Features | Plant Process
Overview
Construction of Stage I Tuas Power Station, comprising two 600 MW
fuel-oil fired steam units, began in November 1994. The first 600
MW unit of Stage I was in commercial operation in March 1999 while
the second unit was taken over in December 1999.
Key Design
Features
- Comprehensive back-up for critical equipment so that a
single failure will not cause the generating unit to trip
- Unitised design concept in which critical equipment
are not shared between generating units, to minimise
the impact of equipment failure
- Steam-turbine-driven boiler feedwater pumps to improve plant efficiency
- 40% turbine bypass system permits fast hot-start and operational flexibility
Plant
Process Overview
Fuel oil is delivered by large oil tankers at the plant's jetty,
via two unloading arms, each with a capacity of 2,000 tonnes per hour.
The fuel oil is then transferred to six fuel oil storage tanks before
being transferred to two day oil tanks.
Fuel is then delivered from the day oil tank to the boiler where the
combustion process takes place. This process will generate hot gas
that will heat the water and steam inside the boiler tubes.
The superheated steam is then allowed to flow through the main steam
pipe to the turbine. The steam impinges on specially shaped blades
of the turbine and causes the turbine to turn at high speed. A two-pole
synchronous generator is employed to convert mechanical energy from
the turbine to electrical energy. |
|
|
