FANS
o f belts and filters. So we were looking for other solutions that would also allow us to save on energy costs. And that’s how we found ebm- papst.”
The operator worked with ebm-papst Sweden to develop a modernization plan for the data centre. The plan included bringing the air c onditioning system up to a level to match the reputation of Sweden’s coolest data centre by installing EC fans, which feature especially high efficiency and easy control, to replace the belt- driven fans.
“ We don’t need any more filters and have been a ble to reduce the required fan pressure. That lowers our energy consumption even further,” said Kristian Thorin, project manager at Bahnhof. Once the plan was in place, a contractor carried out the upgrade and replaced all of the old fans w ith EC fans. “The upgrade went smoothly,” s ays Mr Thorin. “Along with very high energy s avings, we also solved the problem with the dirt particles. Now we don’t need any more filters and have been able to reduce the required fan pressure. That lowers our energy consumption even further.”
All told, the upgrade saves Bahnhof 275 megawatt-hours of energy each year, and
i t spends about €40,000 less on its annual electricity bill. The company operates its data centre even more efficiently now that the waste heat from the servers is also put to good use. In the past, it was simply vented to the surface, but in a joint project with a district heating supplier, B ahnhof installed two heat pumps in Pionen.
T hey route the waste air from the servers to a 70-meter pipe that is connected to the district heating network’s main pipeline. Now the waste air from the servers provides private households with heat and hot water – a clever solution that would impress even James Bond’s master tinkerer Q.
Petra
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