No abstract

The paper presents a comparison of the reverberation time of two boxed rooms considered in two variants. The purpose of the paper is the comparison of the reverberation time measurements results with the results obtained of the available equations and simulation in the ODEON software. The differences between the applicable models and computer simulation and measurement were analyzed. The determined values of the residual analysis were used to develop the rules for granting points to formulas or acoustic simulation. On this basis the choice of the best formula or acoustic simulation for a given octave frequency compared with the measured value was made.

In various green building assessment systems involving sustainable building projects, certain specific acoustic aspects are important. In Europe the most common system addressing the problem is the British system Building Research Establishment’s Environmental Assessment Method (BREEAM), American system Leadership in Energy and Environmental Design (LEED), or German system Deutsche Gesellschaft fur Nachhaltiges Bauen (DGNB). The green building certificate comprises the assessment of noise impact generated by technical equipment of buildings on their external surroundings. The measures undertaken to counteract noise-generated pollution involve green certification, but it is also a global challenge to find appropriate technological solutions contributing to the protection of areas inhabited by people. We determined the impact of the surroundings of the assessed building in specific background noise conditions. We described the problem of appropriate selection of measurement points and the impact of noise generated by building installations on the acoustic assessment of green buildings in BREEAM system. A theoretical model of the simulated house was developed close to a road, with changes to traffic parameters including heavy vehicles and the summary acoustic power of the equipment mounted on the roof of the investigated house. We analysed the impact involving the location of the investigated building on the possibility to obtain ‘credits’ in view of environmental acoustics. Instead of a single case study, we used simulation to illustrate different situations such as the changing acoustic background represented by the existing traffic system or changing noise of the sources represented by noise generating units.

No abstract

No abstract