Samkörning mellan värmepumpar och fjärrvärme
Bostadsrättsföreningen Bogården
This diploma work covers an investigation over the heat - and hot water systems of thetenant-owner's association, Bogården. The heat - and hot water needs of Bogården aresatisfied by both district heating as well as three heat pumps. Implemented investigationshows that the heat pumps are not used in a profitable way. Apart from that, the reservepossibilities are small. There is also a risk of the growth of Legionella bacterium in thehot water system.Since the heat pumps are already installed, HSB-Gävleborg (responsible for Bogården)has a wish to investigate possible proposed actions for optimization of existing plant.After completed investigation, a new proposed action is presented. The new proposedaction goes on intercepting the hot water production and using the heat pumps to onlyheat production during the heating season. Why the hot water production should beintercepted, is just in order to eliminate the risk of Legionella. Besides, the new proposalis going to bring about a reserve of 1,534,000 SEK during a twenty-year period. This isapproximately twice as much as what the existing plant may bring during the sameperiod.During the work's review, it also has been established that heat - and hot water systemsare error regulated. Since the diploma work does not cover that piece it is insteadinformed as proposals subject to further investigation.