Change search
ReferencesLink to record
Permanent link

Direct link
Energiberäkningar av fastighet Bobacken 250
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics.
2012 (Swedish)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

A large part of the total energy consumed by our houses in Sweden is used to heat them up during the long winter. That means that a lot of energy and money can be saved if all the houses could be made just a little more energy efficient. This report analyses a house from 1865 that during a renovation is planned to be energy analyst so it can be made more energy efficient. By using the program BV2 the house can be simulated to examine which efficient solution that gives the most profit and saves most energy.Currently the house is heated with an oil fired boiler which is about to be replaced because oil burning is bad for the environment and the climbing oil price increases heating costs. Because there is no district heating available, the best alternative is set to be a heat pump that takes heat from the ground rock. The age of the building imply that all information had to be taken by inspecting the building and measuring everything by hand. An interview were also held whit the owners to collect even more information, but many assumptions had to be made even with all the collected information.During the work progress it comes clear that the ventilation were inadequate, which means that the present energy consumption is too low and measured ventilation would lead to a higher heating cost.A simulation of the house when it has satisfied ventilation and an even indoor temperature was used as a reference to all the efficient actions.

It was only possible to fit more insulation to half the roof area due to its special construction and changing to more efficient windows lowered the energy consumption by 2000 kWh/year.The big economical profit that saved 35000 kr/year was to replace the oil fired boiler whit a heat pump.

Place, publisher, year, edition, pages
2012. , 23 p.
National Category
Engineering and Technology
URN: urn:nbn:se:umu:diva-59152OAI: diva2:551318
External cooperation
NVS-Energitjänst Umeå
Educational program
Bachelor of Science Programme in Energy Engineering
Available from: 2012-09-11 Created: 2012-09-10 Last updated: 2012-09-11Bibliographically approved

Open Access in DiVA

No full text

By organisation
Department of Applied Physics and Electronics
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 59 hits
ReferencesLink to record
Permanent link

Direct link