Change search
ReferencesLink to record
Permanent link

Direct link
Investigation of energy retrofits of a multi-family building By using IDA Simulation Software
University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
2014 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Energy simulation in building sector was an important issue which can eliminate energy use and improve energy efficiency. The building, which is located at Ringvägen 18 in Ljusdal community in Sweden, was chosen to be the main mission of this research and it was one of eleven objects which were involved in EKG project. First step was to create the model and simulate it to reach heating value of 117 MWh which was reached by EKG project. After getting validation value, many renovations were implemented and the heating value was reduced by 58.7% and the heating demand by 55.2%. Improving of energy use through prefabrication gave reduction of heating value of 70.4% and heating demand of 65.8%

The LCC part was important issue because it gave clear vision and judgment about the economic and investment issue. The acceptability of the investment decision was decided by 198 answers which were responsible to judge if the investments were good or not. There were 22 types of different renovation and every type included 9 cases which depended on interesting rate and energy price factors. The result was 198 answers which were divided to 100 answers as “YES” for good investment and 98 answers as “NO” for good investment.

Place, publisher, year, edition, pages
2014. , 131 p.
Keyword [en]
IDA Simulation
Keyword [sv]
IDA Simulering
National Category
Energy Systems
URN: urn:nbn:se:hig:diva-19398OAI: diva2:814665
Subject / course
Energy systems
2014-12-12, 11:320, Kungsbäcksvägen 47, Gävle- Sweden, 13:00 (English)
Available from: 2015-06-01 Created: 2015-05-27 Last updated: 2016-01-25Bibliographically approved

Open Access in DiVA

fulltext med korrigerad TOC(4688 kB)65 downloads
File information
File name FULLTEXT02.pdfFile size 4688 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Ahmed, Basem
By organisation
Department of Building, Energy and Environmental Engineering
Energy Systems

Search outside of DiVA

GoogleGoogle Scholar
Total: 106 downloads
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: 232 hits
ReferencesLink to record
Permanent link

Direct link