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dissertation (5)

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Dissertation
Structural optimization of deployable scissor arches using genetic algorithms

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Dissertation
Low-tech office building in Belgium, an economic and environmental assessment Building 2226 as a case study
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Year: 2016 Publisher: Leuven Katholieke Universiteit Leuven. Faculteit Ingenieurswetenschappen

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Dissertation
Design and analysis of building kits based on scissor structures for disaster relief

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Dissertation
Non-linear modelling of deployable structures accounting for friction and imperfections in hinges

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Dissertation
Low-tech office building in Belgium, an economic and environmental assessment. Building 2226 as a case study

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Technology is indispensable in modern office buildings. The question raises whether all these techniques are necessary for the building to operate or if these can be reduced or removed at all. These days climate change is an important topic. In consequence, an office building should not only be designed for the current situation but should also be able to adapt to a future climate scenario. Baumschlager Eberle designed an office building that does not use a heating, cooling or active ventilation system and is designed with a future perspective. The question raised whether this building operates well with only a few techniques or not and how it will operate in a future climate. This thesis examines how a low-tech office building can be designed in Belgium in an affordable and sustainable manner. This is accompanied by a number of subquestions: (1) What is a low-tech building? (2) Is this concept interesting in terms of costs and environmental impacts? (3) Is it worth to build a low-tech office building in comparison to a current state of the art office building in Belgium? (4) Is this concept suitable for future climate scenarios? In the first place, a definition for low-tech is elaborated. Secondly, building 2226 is assessed in its current context to identify the most important elements regarding cost, environmental impact and comfort. This is done via an environmental performance of materials (MMG-tool, a life cycle assessment extended with an analyse of the life cycle cost) and comfort calculations in EnergyPlus). Thirdly, the building is analysed in the Belgian context and compared to an office fulfilling the EPB requirements and a passive office building. Analyses revealed that the low-tech office building is preferred regarding environmental impact and cost. This is mainly due to the small amount of techniques used and in consequence the reduced energy need. In terms of comfort, it is not possible to make unequivocal statements. The analyse revealed uncomfortable situations throughout the year. However this could be caused by the calculation method used and is in conflict with measurements executed in building 2226. The comfort level decreases in a future climate scenario, however it is not analysed whether the decrease in the low-tech office building is worse than for the office building fulfilling the EPB requirements or for the passive office building.

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