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En lokals energibehov: Jämförelse och modellering av olika typer av klimatsystem 
Linnaeus University, Faculty of Technology, Department of Building and Energy Technology.
Linnaeus University, Faculty of Technology, Department of Building and Energy Technology.
2013 (Swedish)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesisAlternative title
Premises energy demand : a comparison between different types of indoor climate systems.  (English)
Abstract [sv]

Syftet med arbetet var att framställa en beräkningsmodell som behärskar att beräkna ett klimatsystems energiförluster samt livscykelanalys, LCC. Samt att använda denna modell vid jämförelse av två befintliga system.

Modellen skapades i programmet Excell och använder sig av angiven indata för att beräkna resultat. Den användes för jämförelse av fyra lokaler i VIDEUM ABs byggnader. Två kontor och två föreläsningssalar jämfördes. Den beräknade skillnaden i energiförbrukning kunde i huvudsak härledas till det ena systemets längre drifttid över helgen samt att ett av kontoren drevs med högt konstantflöde hos ventilation även under frånvaro.

Huruvida styrning av system sker efter koldioxidkoncentration eller temperatur verkar spela mindre roll för systemets förluster. Dock påverkar onödigt högt ställda flöden samt för långa driftstider energibehovet desto mer. 

Abstract [en]

The thesis focused on compiling a calculation model suitable for calculating an indoor climate system energy demand and life cycle cost, LCC. The model was created in Excell and uses given input data to calculate the results.

The model was used to compare four different premises located in buildings owned by VIDEUM AB in Växjö. Two offices and two lecture halls was compared. The calculated differences in energy demand could be derived to longer operating times during weekends for one system. One office had a large constant air flow even during absence which also led to a greater energy demand.

Whether the system was regulated by using carbon dioxide concentrations or temperature as indicators on air quality didn’t seem to affect the energy demand significantly. Unnecessary high flow rates and operating times affects the premises energy demand the more.

Place, publisher, year, edition, pages
2013. , 65 p.
Keyword [sv]
Klimatsystem, ventilationssystem, CAV, VAV, DCV, ventilationsstyrning, koldioxidkoncentration, temperaturstyrning, energieffektivisering, energiförbrukning
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:lnu:diva-26250OAI: oai:DiVA.org:lnu-26250DiVA: diva2:627018
External cooperation
VIDEUM AB
Subject / course
Energiteknik
Educational program
Energy and Environment Programme with specialization in Bioenergy Technology, 180 credits
Presentation
(Swedish)
Uppsok
Technology
Supervisors
Examiners
Available from: 2013-06-19 Created: 2013-06-10 Last updated: 2013-06-19Bibliographically approved

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CiteExportLink to record
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