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Optimering av pumpdrift i Skanska Deep Green Cooling
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Mechanics, Byggteknik.
2016 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesisAlternative title
Optimization of pump operation in Skanska Deep Green Cooling (English)
Abstract [en]

Skanska Deep Green Cooling is a very energy efficient system for cooling of a building. The system use deep boreholes to cool the building. In the cold part of the year, when the temperature outside is lower than the temperature out from the boreholes, the boreholes will be charged with coldness and the heat in the boreholes are used to preheat the ventilation air.

The system has potential to be more energy efficient by optimization of the pumps and the pressure drop in the system. Pressure drop is crucial for the pumps power requirement.

In the report two methods are theoretic tested to lowering the pressure drop to lower levels. The first method work with full open control valves and the second method work with bypass of control valves. Energy saving of the two methods are 7 percent. 

Abstract [sv]

Skanska Deep Green Cooling är en energieffektiv metod för kontorskyla. Metoden bygger på att nyttja kylan som finns i marken för att kyla en byggnad. Under kalla delen av året så laddas berget åter med kyla samtidigt som värmen från berget förvärmer ventilationsluften.

Deep Green Cooling bygger på principen att inte krångla till det i onödan, därmed har styrsystemet upprättats så enkelt som möjligt. Kylsystemet har i dag redan en mycket god verkningsgrad, men det finns möjlighet att höja den.

Denna rapport tar upp två metoder för att effektivisera driften av Deep Green Cooling. Båda metoderna går ut på att minska onödiga förluster i systemet och därmed spara energi, teoretiska beräkningar visar på ungefär 7 procent i besparing. 

Place, publisher, year, edition, pages
2016.
Keyword [sv]
Skanska Deep Green Cooling, kontorskyla, pumpar, styrventiler, tryckfall
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:uu:diva-298729ISRN: UTH-INGUTB-EX-B-2016/30-SEOAI: oai:DiVA.org:uu-298729DiVA: diva2:946971
External cooperation
Skanska Kommersiell Utveckling Norden
Educational program
Bachelor Programme in Construction Engineering
Supervisors
Examiners
Available from: 2016-07-06 Created: 2016-07-06 Last updated: 2016-07-06Bibliographically approved

Open Access in DiVA

Rapport Optimering av pumpdrift i Skanska Deep Green Cooling Pontus Kihlström.pdf(17153 kB)155 downloads
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