Geo-energy System in Sweden

A geo-energy system, comprising of a combination of a plate heat exchanger and a liquid dry cooler, is installed at the IKEA store in Karlstad, Sweden.

Alfa Laval’s range of products and expertise were decisive factors when Malmberg Water AB was looking for heat exchangers to install in a geo-energy system at an IKEA store in Karlstad, Sweden.

Specifically, Malmberg Water AB’s designs for the system, installed in August 2007, called for a combination of a plate
heat exchanger and a liquid dry cooler.

Coupled together, both of these units in the system work to cool and heat the IKEA store based on the transfer of heat
between water, glycol and air depending upon the season.

Bedrock Science
Geo-energy technology exploits the natural heat and cold that is present in the bedrock and the groundwater during the
summer and winter. It is one of the most cost effective and environmentally friendly means to achieve a comfortable indoor climate.

Malmberg Water AB supplied a complete turnkey heating/cooling installation utilizing 101, 120-meter deep, holes in the bedrock 5.5 meters apart from each other and lined them with pipes to circulate cooling water.
 

This cooling water then passes through a variety of Alfa Laval copper brazed and gasketed plate heat exchangers, as well
as a liquid dry cooler, to unload its heat or cold to other media, that is then used to heat or cool the store.