Fristående värmesystem till Akademiska sjukhuset i Uppsala : en analys av energi, effekt, flöde, kostnader och säkerhet

Abstract: Region Uppsala plans to build a new heating system called VS01 for the Uppsala University Hospital. VS01 will be a low temperature district heating system and connects all buildings in the hospital area. By building VS01, the existing 23 district heat subscriptions, one for every building, can be assembled into one. Today, one of Vattenfall’s main pipe extends through the hospital buildings. The high pressure and temperature entail a high safety risk for people in the vicinity if a leak should occur. By building VS01 Region Uppsala would be able to lower the temperature and pressure in the pipes, and by that lower safety risks. The energy consumption will stay the same. The power peak will be lower, however, no money will be saved from that aspect. The flux of district heat water from Vattenfall will be lower. By assembling all subscriptions into one, approximately 640 000 SEK per year can be saved due to volume discounts. Investment costs is generally not taken in consideration for this project, but the estimated cost for two new heat exchangers for VS01 is at least 510 000 SEK.