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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Problem och förbättringsåtgärder för termisk komfort och energi på en glasbyggnad i Gävle – en fallstudie

Käck Nauclér, Johan, Sandberg, Peter January 2018 (has links)
Det byggdes många byggnader med fasader av glas under 90-talet. Arkitekterna ville med detta framhäva en design som var luftig, ljus, genomskinlig och som hade god tillgång till naturligt dagsljus. Dock finns problem med dessa byggnader eftersom de ofta har hög energianvändning och dålig termisk komfort. I denna fallstudie undersöktes glasbyggnaden Bråbänken i Gävle, den hade vid till- fället problem med den termiska komforten då byggnaden upplevdes för varm på sommaren och för kall på vintern. Vidare var energianvändningen för byggnaden hög då den var dåligt isolerad och hade hög solinstrålning. Studien gick ut på att komma till rätta med dessa problem genom att bygga en termisk numerisk modell av byggnaden i simuleringsprogrammet IDA-ICE och sedan studera olika förbätt- ringsåtgärder genom att ändra indatan för byggnadens olika komponenter. Resultatet av simuleringarna visade att en reduktion av solinstrålningen genom sol- film och screenväv förbättrade den termiska komforten på sommaren men margi- nellt försämrade den på vintern. Årsenergianvändningen reducerades för åtgärderna genom att byggnaden i högre grad bibehöll sin värme på vintern och minimerade kylbehovet på sommaren. Slutsatsen blev att en kombinerad åtgärd med ickemetallisk solfilm på väggfönster och screenväv på taket är den bästa lösningen för att komma tillrätta med problemen vad gäller termisk komfort och energianvändning för glasbyggnaden Bråbänken. / There was a lot of construction of buildings with glazed facades during the 90 ́s. The architects wanted to show a design that was airy, bright, transparent and that had a good availability of natural daylight. However there is a problem with these build- ings because they have a high energy consumption and bad thermal comfort. In this case study a glass building in Gävle called Bråbänken was studied, which at the moment has problems with thermal comfort according to the occupants who complained about it being to hot in the summer and to cold in the winter. Further- more the energy consumption for the building was high because it was poorly insu- lated and had high solar radiation. The study aimed at addressing these problems by creating a thermal model of the building in the energy simulation program IDA-ICE and then study different improvements by changing the input values for various components of the model. The results of the simulations showed that by reducing the solar radiation through solar film and screen fabrics improved the thermal comfort in the summer but mar- ginally deteriorated it in the winter. The annual energy consumption was reduced by minimizing the use of energy for heating in the winter and of cooling in the sum- mer. The conclusion was that a combination of non-metallic solar film on walls and screen fabrics on the roof is the best solution to improve the thermal comfort and energy consumption for the glass building Bråbänken.
2

Facelift EDU / Facelift PDU

Růžičková, Tereza January 2020 (has links)
The theme of the diploma thesis is the solution of the pre-plant zone of the Dukovany nuclear power station. Creating a vision of how this space could develop further in the next 50 years and how it could work in a transitional phase during the construction of a new nuclear power plant unit. The subject of the thesis is the elaboration of an architectural study, which is based on an urban study. Urban study was processed within the framework of the pre-diploma thesis and solved mainly the overall problems of this area, the new transport connection, and the functional division of the whole area. The area was divided into three functional units, namely the transport zone, the administrative zone and the sports and education zone. At present, there are a lot of small structurally and functionally unsuitable buildings in this area. The diploma thesis deals with the design of new buildings with a clear functional use in the administrative zone, in the area in front of the main gatehouse. A new representative square was created, and three buildings are designed around it. The dominant feature of the whole area was a high-rise office building near the gatehouse. In front of the office building, towards the main road, the service building I was designed, which contains business and healthcare services. On the other side of the square was located the service building II, where there are technical services, such as workshops, warehouses and metrology. The last building solved within the diploma thesis is the building of sports and locker rooms of suppliers, which is designed behind the square near the greenery. New building copies mass of the only preserved building in this area, namely the building of the information centre. The designed building has a fitness centre and locker rooms of external workers of the power plant.

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