Publicaties
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Building Physics - Heat, Air and Moisture: Fundamentals and Engineering Methods with Examples and Exercises KU Leuven
Bad experiences with construction quality, the energy crises of 1973 and 1979, complaints about 'sick buildings', thermal, acoustical, visual and olfactory discomfort, the move towards more sustainability, have all accelerated the development of a field, which until 35 years ago was hardly more than an academic exercise: building physics. Through the application of existing physical knowledge and the combination with information coming from ...
Implementation and validation of a 3D image-based prediction model for the thermal conductivity of cellular and granular porous building blocks KU Leuven
Porous building blocks are increasingly being used in the building sector, as they offer a relatively high thermal resistance because of their porous microstructure. A clear understanding of the relation between the material’s microstructural properties and effective thermal conductivity is still lacking though, impeding a correct analysis and design of existing and new porous building blocks. Therefore, this paper presents a 3D model framework ...
The uncertainty of sound insulation properties of light weight building elements KU Leuven
Measurement uncertainty is an important topic in building acoustics measurements carried out in the field assessing the sound insulation between rooms as well as conducted in test stands characterizing the sound insulation properties of a building element accurately. Beyond measurement method related contributions to the uncertainty budget there is the variation of the sound insulation properties of the building element itself. According to ...
Accounting for modal behaviour in the prediction of sound transmission through simply supported building elements using periodic structures theory KU Leuven
In order to optimize the sound insulation of building elements, efficient and sufficiently accurate prediction tools over a broad frequency range are required to avoid extensive experimental prototype testing in an acoustic laboratory. When simulating the transmission suite, a hybrid framework can be used to divide the room-wall-room system into statistical and deterministic subsystems. While the rooms are assumed to have diffuse sound fields ...
Wood-Veneer-Reinforced Mycelium Composites for Sustainable Building Components KU Leuven
The demand for building materials has been constantly increasing, which leads to excessive energy consumption for their provision. The looming environmental consequences have triggered the search for sustainable alternatives. Mycelium, as a rapidly renewable, low-carbon natural material that can withstand compressive forces and has inherent acoustic and fire-resistance properties, could be a potential solution to this problem. However, due to ...
Laser scanning vibrometry measurements on a light weight building element, KU Leuven
The most common method to determine the sound reduction index of building partitions is to use a standardized microphone measurement method according to ISO 10140, which puts specific requirements to the acoustic properties of the transmission suit. At low frequencies, however, these requirements are difficult to be fulfilled. In an effort to solve this issue, a complementary measurement method based upon laser Doppler vibrometry is presented.
The VUB Blizzard Challenge 2010 Entry: Towards Automatic Voice Building Vrije Universiteit Brussel
In this paper we describe the voices we submitted to the 2010 Blizzard Challenge, a yearly challenge to evaluate auditory speech synthesis on common data. One of the goals of a data-driven synthesizer, such as ours, is to generalize the speech database in such a way that it allows a realistic rendition of unseen input text. The two main changes to our system, compared to previous submissions, are the inclusion of an HMM-based acoustic prosody ...
Aerodynamics of flue organ pipe voicing Universiteit Gent
The objective of this paper is to investigate the possibility of giving useful interpretations of flue organ pipe voicing practices in terms of the aerodynamical and aeroacoustical behaviour of the pipes. An overview is first given of the current state of the knowledge on sound generation in flue instruments. After an introduction into the limited literature on voicing an scheme is presented as a possible framework to classify and characterize ...
How to tranform European housing into healthy and sustainable living spaces using a Belgian case study? Vrije Universiteit Brussel
The RenovActive renovation concept seeks to offer healthy, affordable, easy to reproduce, scalable solutions for the existing building stock of European housing. The concept was developed and tested in a prototype phase, where 7 principles have been applied to a semidetached house built in the 1920s, situated in a garden city in Brussels. The renovated prototype was occupied by a family and monitored for two years. The monitoring was performed, ...