This project investigated and analyzed a variety of energy efficiency measures in a residential area with townhouses in Tierp, Sweden, known as Makrillvägen, currently supplied with district heating. The aim of the project was to determine the area’s current heating demand and primary energy rating, identify the necessary measures to enable the area to achieve a classification aslow-energy buildings, and evaluate the economic aspects of these measures. To achieve these goals an analysis of the area’s heat energy consumption was conducted by modelling the area in software program called VIP-Energy, commonly used to evaluate buildings’ heat demand. The different energy-efficiency measures were then simulated in the same program to determine which measures concluded in a low-energy building classification. The various measures investigated were additional insulation of the attic, replacement of windows, installation of exhaust and supply air ventilation with heat recovery and exhaust air heat pump with solar cells. The results showed that for the area with 111 apartments, installations of exhaust air heat pumps together with solar cells were the only measure that could reduce the heat demand sufficiently. The conclusions of the project concludes that installation of exhaust air heat pumps meant an increased amount of consumed property electricity as a result of the pumps drawing electricity .Therefore installation of solar cells were added, to supply a majority of the increased electricity demand. By quantifying the economic aspects of these measures, they resulted in a payback time of 13,6 years with a total of yearly savings of 914,2 kSEK.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:uu-515848 |
| Date | January 2023 |
| Creators | Hagman, Ida |
| Publisher | Uppsala universitet, Materialteori |
| Source Sets | DiVA Archive at Upsalla University |
| Language | Swedish |
| Detected Language | English |
| Type | Student thesis, info:eu-repo/semantics/bachelorThesis, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | FYSAST ; FYSPROJ1325 |
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