THE SOLUTION TO THE CHALLENGE Instead of adding all the pressure right at the beginning, it is possible to add the pressure when we need it. This can be illustrated as below:
to the system generally is reduced. With more manageable differential pressure in front of customer installations, the risk of by-pass is also reduced. It will be a challenge to prove that distributed pumps will lead to lower return water temperatures, but it might be a possibility. OTHER POSSIBILITIES A general reduction of flow temperature right from production, might not be optimum in all cases. Some customers might need a higher temperature than more modern new-build houses. In these cases, we could consider dynamic flow temperature adjustments in the network, where this is possible. Let’s take one example:
The series’ connected pumps will deliver only the required pressure until the next pump in line takes over. The traditional approach with one spot for adding pressure, to now a dynamic add of pressure, is possible when we utilize new modern pumps with speed and thereby pressure control. So in this way, modern pumps can be an enabler for introducing low temperature DH. The positive side effect will be that differential pressure exposed
The future is green – just like Fjernvarme Fyn Every day we work to develop production and supplies for tomorrow’s society. We have come a long way in the transition to sustainable, renewable energy production. Recently, we announced an ag- reement with Facebook to utilise surplus heat from their forthcoming data centre in Odense for district heating. At the same time, we are converting Fjernvarme Fyn’s waste energy plant at a cost of DKK 250 mil- lion. Following the conversion, the plant’s capacity and the energy from waste will be utilised better and more efficiently. That’s why the future’s green for Fjernvarme Fyn, and for generations to come. Read more about Fjernvarme Fyn at www.fjernvar- mefyn.dk.
Fjernvarme Fyn is one of Denmark’s largest district heating companies. We supply heating to more than 90,000 households through more than 2,100 km of district heating pipes. The vast majority of the heat is produced at Fjern- varme Fyn’s three CHP plants on Havnegade, fuelled by waste, straw and coal.
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