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A feedwater heater is a power plant component used to pre-heat water delivered to a steam generating boiler. [ 1 ] [ 2 ] [ 3 ] Preheating the feedwater reduces the irreversibilities involved in steam generation and therefore improves the thermodynamic efficiency of the system. [ 4 ]
List of coal-fired plants in Malaysia; Plant State Coordinates MW Type Owner/operator Refs Balingian Sarawak at Mukah: 600 Thermal Sarawak Energy [17] Jimah Power Plant: Negri Sembilan at Lukut: 1,400: Thermal (2 ST) Jimah Energy Ventures Sdn Bhd [18] [19] Stesen Janakuasa Tuanku Muhriz
A Rankine cycle with a two-stage steam turbine and a single feed water heater. The energy efficiency of a conventional thermal power station is defined as saleable energy produced as a percent of the heating value of the fuel consumed. A simple cycle gas turbine achieves energy conversion efficiencies from 20 to 35%. [5]
Browns Ferry Unit 1 drywell and wetwell under construction, within a Mark I containment. BWR Type 4 (BWR-4, BWR/4): Introduced in 1966, 1100 MW (Browns Ferry 1–3). Largely similar to the BWR/3 in design with an identical recirculation system, but power density was increased by 20%. [5] Available with either Mark I or Mark II containment.
Hydroelectric power plants. Bakun HEP - 2,400MW [7] Batang Ai HEP - 108 MW; Murum HEP - 944MW; Baleh HEP - 1,285MW [8] (Commissioning in 2026) Thermal power plants Among the thermal plants in operation are: Miri power station, Miri - 99 MW, Open Cycle Gas Turbine; Bintulu power station, Bintulu - 330 MW, Combined Cycle Power Plant
The power station consists of two 1,000MW ultra-supercritical coal-fired units, each with a once-through boiler and a 3000rpm steam turbine operating at 603°C and 270 bar. The units feature water-cooled stator, hydrogen-cooled rotor generators, a 160m-high chimney with 9.1m internal diameter, and on-site ash storage facilities.
Weir feedwater pump. Steam locomotives and the steam engines used on ships and stationary applications such as power plants also require feedwater pumps. In this situation, though, the pump was often powered using a small steam engine that ran using the steam produced by the boiler.
Boiler feedwater is the water which is supplied to a boiler. The feed water is put into the steam drum from a feed pump. In the steam drum the feed water is then turned into steam from the heat. After the steam is used, it is then dumped to the main condenser. From the condenser, it is then pumped to the deaerated feed tank.