Dampfmaschinenhaus: A Mosque Shaped Pump House in Potsdam

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The Dampfmaschinenhaus at the Neustädter Havelbucht in Potsdam, Germany, looks like a Turkish mosque but is actually a pumping station in disguise. Its purpose was to accommodate an 81.4 horse power steam engine – a 19th century masterpiece of mechanical engineering – that was used to pump water from the River Havel to the Great Fountains in the Sanssouci Park.

The fountains in Sanssouci Park were originally designed by Prussian King Frederick the Great in the 1750s. Frederick invested heavily in the fountain system of Sanssouci Park, as water features were a firm component of baroque gardens. The plan was to use pumps driven by wind power to pump water from the Havel River to a water basin located high up the mountain Ruinenberg. From there, the water was expected to flow on its own, on account of the height of the water basin, through a system of pipes, until it erupted in a fountain in the park. Although Frederick spent a lot of money into the fountain, the plan never took off because of lack of expertise and technical knowledge of the builders. After endless efforts and enormous material consumption, the project was finally abandoned in 1780.

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The King’s wishes were eventually fulfilled, 60 years later, by his grandson Friedrich Wilhelm IV, with the help of a steam engine. In 1842, Germany’s strongest steam engine of 81.4 horse power designed by August Borsig started working and made the water jet of the Great Fountain below the vineyard terraces rise to a height of 38 meters. The pump was a two-cylinder steam engine operating at a meager efficiency of 3% and consumed 4 tons of coal everyday. To house the machine, the King asked Prussian architect Ludwig Persius to build a pumping station, and design it in the style of a Turkish Mosque with a minaret disguising the funnel. The station was built between 1841and 1843.

In 1895, the steam engine was replaced by a new, more powerful engine with 160 horsepower. Since 1937, the pump is run by two electrically driven centrifugal pumps. In September 1985, the steam engine house was converted to a museum and technical monument opened to the public. Inside the building a permanent exhibit provides information about the history of the building and the machine.

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The Great Fountain of Sanssouci Park. Photo credit

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Sources: www.potsdam.de / judy-volker.com / Wikipedia (German) / Wikipedia

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