Residential energy renovation: Analysis of energy savings and economic profitability in a multifamily building block

dc.contributor.authorArvidsson, Daniel
dc.contributor.authorLama, Gaurab
dc.contributor.departmentChalmers tekniska högskola / Institutionen för arkitektur och samhällsbyggnadsteknik (ACE)sv
dc.contributor.examinerDalenbäck, Jan-Olof
dc.contributor.supervisorTeli, Despoina
dc.date.accessioned2021-06-22T05:43:25Z
dc.date.available2021-06-22T05:43:25Z
dc.date.issued2021sv
dc.date.submitted2020
dc.description.abstractThe necessity for renovation of the Swedish Million Homes Programme building stock has been under scrutiny in recent years. Many of these buildings are undergoing deterioration and have an energy performance far below the current standard for new buildings (Högberg et al., 2009). In Sweden, up to 40% of the energy usage originates from the building sector (Liu et al., 2014) and less than 1% of buildings are newly added to the building stock each year (Economidou M et al., 2011). Thus, to reduce this energy use, the energy-efficiency of the existing buildings has to be improved via renovation. This strategy is also part of the European Union’s Green deal announced in 2019, the policies of which its member states are expected to comply (European Union, 2019). This thesis aimed to formulate several renovation packages to achieve an annual specific energy use reduction of at least 30%. Six multi-family buildings from the Million Homes Programme located in Hisings Backa, Gothenburg were investigated as part of the study. One building was selected as the case study building and simulated in IDA ICE to replicate its current energy performance. The proposed renovation measures dealt with improving the building envelope, ventilation system and some minimal baseline measures. These measures were put together into several different packages and simulated to determine the post-renovation energy savings and operational CO2 reductions. In addition, economic evaluations were conducted using the Equivalent Annual Cost (EAC) method to gauge the most economically sound package. Finally, the results obtained from the case study building were extrapolated to the five other buildings connected to the same substation. The thesis concluded that savings in specific energy use of more than 50% could be achieved by upgrading the existing F-ventilation to an FTX or FVP system. The thesis also established that it is generally challenging to make a renovation project profitable solely based on operational energy cost reductions. However, a few packages with reasonable savings were found to have a comparatively good EAC, which could potentially mean that they are profitable.sv
dc.identifier.coursecodeACEX30sv
dc.identifier.urihttps://hdl.handle.net/20.500.12380/302662
dc.language.isoengsv
dc.setspec.uppsokTechnology
dc.subjectenergy-efficiencysv
dc.subjectenergy auditingsv
dc.subjectenergy simulationssv
dc.subjectrenovationsv
dc.subjecteconomic analysissv
dc.subjectEACsv
dc.subjectFVPsv
dc.subjectFTXsv
dc.subjectCO2 emissionssv
dc.titleResidential energy renovation: Analysis of energy savings and economic profitability in a multifamily building blocksv
dc.type.degreeExamensarbete för masterexamensv
dc.type.uppsokH
Ladda ner
Original bundle
Visar 1 - 1 av 1
Hämtar...
Bild (thumbnail)
Namn:
ACEX30.pdf
Storlek:
11.2 MB
Format:
Adobe Portable Document Format
Beskrivning:
License bundle
Visar 1 - 1 av 1
Hämtar...
Bild (thumbnail)
Namn:
license.txt
Storlek:
1.14 KB
Format:
Item-specific license agreed upon to submission
Beskrivning: