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Investigation of an energy refurbishment concept for office building using Nanoger/Aerogel insulation plaster and replaced windows by building simulation
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences.
2014 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Energy retrofitting, i.e energy savings

and the optimal use of energy, are the

prerequisite for closing the gap between

finite resources and increasing energy

demand. Energy retrofitting also means

increasing the value of the building and

making it more durable and comfortable.

These days’ energy-efficiency standards

for buildings become increasingly

important, but using a traditional

insulation material such as mineral

wool, expanded polystyrene and cellulose

insulation materials often means having

to accept increasingly thick layers of

insulation in walls, floors, and roofs.

This consumes valuable floor space in

new construction. In renovation

projects, it is not even possible to

increase insulation thickness without

significant aesthetic and functional


This specific master thesis investigates

the energy refurbishment concept of an

old Telegraphengebäude (telegraph

building) using Nanogel®Aerogel

insulating plaster having a thermal

efficiency of 2 to 4 times better than

traditional insulation materials. The

old building is located in the northwest

district of Karlsruhe, Germany and

built in between 1906 and 1907.

An initial DesignBuilder simulation

result of the old telegraph building

loss around 179 MWh of heat energy every

winter. As part of building renovation,

external walls are insulated with very

low thermal conductance SLENTIT Aerogel

insulation board, windows are changed to

double glazed low-e coated windows, roof

attic is insulted with mineral wool, and

the building is air tightened. This

refurbishment turns in a reduction of

total building energy loss by 61% and an

improvement in primary space heating

demand by 78% in heating season.

Place, publisher, year, edition, pages
2014. , 89 p.
MSc ET, 14002
National Category
Other Engineering and Technologies not elsewhere specified
URN: urn:nbn:se:uu:diva-238920OAI: oai:DiVA.org:uu-238920DiVA: diva2:772909
Educational program
Master Programme in Energy Technology
Available from: 2015-01-08 Created: 2014-12-17 Last updated: 2015-01-08Bibliographically approved

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