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The company was founded by William Thompson, in or around 1820, in Wolverhampton, as a general engineering business. [1] In 1850, the business passed to William's brother, Stephen, and in 1860, it passed to William's son, John. Within ten years it was concentrating on manufacturing boilers. [1] By 1914, the company had expanded into motor ...
The four 500 MW boilers at Cottam Power Station were manufactured by John Thompson Water Tube Boilers Limited, in conjunction with Clarke Chapman & Co. Ltd. Each had an evaporation rate at M.C.R. of 1.542 tonne/hour (3,400 lb/hr). The boiler plant was designed for short time overload operation.
The John Thompson boilers delivered 592.0 kg/s of steam at 62.1 bar and 482 °C. The first four units were fully commissioned in 1957, [10] with the remaining four units on stream by 1958. [3] The electricity output of the station was: [7] [9] [11] [12]
It was designed as a coal-fired station with coal delivered to the jetty on the Thames and stored initially to the east and later to the north of the building. Soon after completion in 1958 the station was adapted to also burn oil. The total steam capacity of the John Thompson boilers was 3,240,000 lb/hr (408 kg/s). [11]
4 × 50,000 lb/h (6.3 kg/s) John Thompson boilers with chain grate stokers. Steam conditions were 250 psi and 650°F (17.2 bar and 343°C), these supplied steam to: 1 × 7.5 MW Parsons turbo-alternator. 1 × 4.65 MW British Thomson-Houston turbo-alternator, commissioned in May 1952 There was also a 260 kW oil engine, house services set.
Wallerawang A – originally built with four British Thomson-Houston 30 megawatts (40,000 hp) single cylinder generators, completed in 1957–1959. Steam was supplied to each generator by a John Thompson Etaflow boiler at a rate of 150,000 kilograms per hour (330,000 lb/h) at 600 pounds per square inch (4,100 kPa) and 540 °F (282 °C).
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