Course Details

Acoustics and Daylighting

Academic Year 2024/25

BHB011 course is part of 3 study plans

​ BPC-SI / S Summer Semester 4th year

​ BKC-SI Summer Semester 4th year

​ BPA-SI Summer Semester 4th year

The course presents fundamentals in room acoustics and daylighting in buildings. Knowledge of this subject will be practically used for the following study - in seminars, projects and master degree projects.

Credits

4 credits

Language of instruction

Czech, English

Semester

summer

Course Guarantor

prof. Ing. Jitka Mohelníková, Ph.D.

Institute

Institute of Building Structures

Forms and criteria of assessment

course-unit credit and examination

Entry Knowledge

Fundamentals in building constructions, fundamentals in physics, Acoustics and Optics.

Aims

Fundamentals in room acoustics, determination of air-borne and impact sound insulation index for building constructions, design of rooms and their interiors with respect to reverberation time, determination of requirements for indoor acoustic comfort and design of building protection against exterior noise.
Methods for the evaluation of visual comfort in buildings, daylighting and insolation of buildings.


Reports of building acoustics and daylighting and insolation tasks.

Tasks from reports will be applicable in study projects. 

Offered to foreign students

To offer to students of all faculties

Course on BUT site

https://www.vut.cz/en/students/courses/detail/281465

Lecture

13 weeks, 2 hours/week, elective

Syllabus

Acoustics:

  • 1. Sound waves, sound field. Acoustics and physiology, basic notions, sound levels and loudness.
  • 2. Sound measurement, frequency band, frequency band analysis, noise report, hygienic limits.
  • 3. Urban acoustics, noise attenuation.
  • 4. Room acoustics, diffuse sound field, sound field.
  • 5. Absorptive constructions, membranes and oscillating plates, Helmholtz resonators. Sound insulation, rating of air-born and structure-born sound insulation.
  • 6. Air-born sound insulation, Watter’s method. Impact sound insulation of building constructions.

Daylighting:

  • 7. Solar radiation, insolation, requirements for insolation.
  • 8. Light and photometry. Methods of evaluation of daylighting in buildings, Daniljuk’s nomograms.
  • 9. Waldram’s diagram, BRS nomograms, average daylight factor.
  • 10. Daylight simulation software.
  • 11. Summary, importance of acoustics, daylighting and insolation for building design.

Exercise

13 weeks, 2 hours/week, compulsory

Syllabus

Acoustics:

  • 1. Introduction, sound waves, octave bands, frequences.
  • 2. Sound pressure, power and intensity levels.
  • 3. Equivalent noise level, noise histogram.
  • 4. Noise reduction due to distance, green bushes and walls. Noise reduction due to wide barrier.
  • 5. Reverberation time of a room. Recommendations for the room finishings because of the reverberation time reduction.
  • 6. Air-borne sound insulation of a building construction. Sound reduction index of a simple wall determined according to the Watter’s method.
  • 7. Impact-sound insulation of a building construction.

Daylighting:

  • 8. Assessment of a building insolation, shading diagram.
  • 9. Evaluation of a room daylighting with Daniljuk’s nomograms.
  • 10. Daylight simulation in software WDLS.
  • 11. Preliminary report of noise, insolation and daylight conditions in a selected building.