HIGH EFFICIENCY PUMPS FOR AALBORG DISTRICT HEATING

AT THE RECENTLY ESTABLISHED Stigsborg Bygade pumping station in Nørresundby, Denmark, four new DESMI centrifugal pumps were installed to supply district heating for some 7-8,000 residents.

DESMI was selected for the project based on three key factors: efficiency, price and compliance with noise level restrictions.  A stringent maximum noise level of 35 decibels was placed on the project, but the DESMI pumps were able to meet this requirement using noise-reducing motors.

Commenting on the project, Thomas Andreasen from Aalborg District Heating said: “Alongside the ability to meet the project’s noise level requirements, DESMI’s solution was selected based on the total cost of ownership. The efficiency of the pumps is high, and the performance is excellent”.

In addition, the pumps are perfect for the low temperatures at which this district heating pumping station is operating. The circulation of the 60°C hot water is ensured by the pumps, which is a low temperature level within the district heating business, and which, among other things, is achieved by recirculating the return flow of cold water within the system.