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Energikartläggning av en kontorsbyggnad i Mellansverige: Skattehuset i Gävle
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Energy Systems and Building Technology.
2020 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Sustainable development
The essay/thesis is partially on sustainable development according to the University's criteria
Abstract [sv]

Världen under åren har haft en ökning av energianvändning som kan leda till stora problem. Anledningen är för att många länder producerar el och värme med resurser som medför stora mängder utsläpp av växthusgaser. Sverige svarade med att införa en lag om att en energikartläggning skall göras minst var fjärde år hos stora företag, så att Sverige kan uppnå ett mål om att energieffektivisera energianvändningen med 50 procent mellan 2003 och 2030. I detta examensarbete har en energikartläggning gjorts på en kontorsbyggnad som är lokaliserad i Mellan Sverige. Syftet var att kartlägga hur el och värme används i byggnaden samt presentera åtgärder för att minska energianvändningen. Resultatet visar att 770 MWh fjärrvärme och totalt 763 MWh el användes år 2019. Varav de största energianvändare i fastigheten är radiatorer, värmebatterier, elapparater och fläktar. Genom att bland annat göra tre energieffektiva åtgärder för ventilation kan upp till 313 000 kr sparas varje år. Åtgärderna är då att installera effektivare värmeväxlare, lägre SFP-tal på fyra av fastighetens luftbehandlingsaggregat samt att ventilationsystem av typen Demand Controlled Ventilation (DCV) används istället för Constant Air volume (CAV).

Abstract [en]

The world over the years has had an increase in energy use that can lead to major problems. The reason is that many countries produce electricity and heat with resources that cause large amounts of greenhouse gas emissions. Sweden responded by introducing a law that an energy audit must be done at least every four years at large companies, so that Sweden can achieve a goal of making energy use more energy efficient between 2003 and 2030. In this study, an energy audit has been done on an office building located in Central Sweden. The purpose was to map how electricity and heat are used in the building and to present measures to reduce energy use. The results show that 770 MWh of district heating and a total of 763 MWh of electricity were used in 2019. Of which the largest energy users in the property are radiators, heating batteries, electrical appliances and fans. By, among other things, taking three energy-efficient measures for ventilation, up to 313,000 SEK can be saved each year. The measures are then to install more efficient heat exchangers for ventilation, lower SFP numbers on four of the property's air handling units and that ventilation systems of the type Demand Controlled Ventilation (DCV) are used instead of Constant Air volume (CAV).

Place, publisher, year, edition, pages
2020. , p. 60
Keywords [en]
Energy audit, Office, Energy efficiency, Ventilation
Keywords [sv]
Energikartläggning, Kontor, Energieffektivisering, Ventilation
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hig:diva-33375OAI: oai:DiVA.org:hig-33375DiVA, id: diva2:1460984
External cooperation
AFRY
Subject / course
Energy systems
Educational program
Energy systems – bachelor’s programme (in eng)
Presentation
2020-08-20, Zoom (internet), 10:30 (Swedish)
Supervisors
Examiners
Available from: 2020-08-28 Created: 2020-08-25 Last updated: 2020-08-28Bibliographically approved

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CiteExportLink to record
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Cite
Citation style
  • apa
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  • ieee
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