Building Physics 2

Garant předmětu:

Zbyněk Svoboda, Jaroslav Vychytil

Lecturer:

Zbyněk Svoboda, Jaroslav Vychytil

Tutor:

Zbyněk Svoboda, Jaroslav Vychytil

Supervisor:

Department of Architectural Engineering

Synopsis:

Extension and supplementation of knowledge from the basic course in building physics.

Detailed analysis of boundary conditions for calculations, governing equations, thermal transmittance of windows and curtain walls, linear and point thermal transmittance, ventilated constructions, energy performance of buildings, thermal protection of historic buildings, complex thermal engineering problems. Sunlight and solar radiation, effect of size and position of lighting aperture, effect of pre-set structures on lighting, choice of surface colours, risk of glare, sound insulation, calculation of sound insulation, sound propagation in building interiors, importance of absorptive and reflective properties of building structures, noise reduction by structural design, sound propagation from building to exterior, necessary properties of designed screens.

Requirements:

Submission of the submitted exercises and successful completion of the exam.

Syllabus of lectures:

1. Energy performance of buildings (calculation principle)

2. Energy performance of buildings (Decree 264/2020 Coll. and energy certificate)

3. Thermal transmittance of windows and curtain walls (calculation principle and specific problems for different types of windows and doors, methods for assessing thermal transmittance of CW, thermal transmittance of skylights)

4. Linear and point thermal transmittance (basic and special cases of calculation of transmittance (contact with soil, three acting environments, etc.))

5. Non-stationary heat transfer and thermal stability of the room (temperature decay, phase shift, thermal stability in winter, thermal stability in summer)

6. Historic unheated buildings (practical examples, risks and recommendations for renovation of both structures and buildings as a whole)

7. Historic heated buildings (practical examples, risks and recommendations for reconstruction of both structures and buildings as a whole)

8. Sunlight and solar radiation, influencing the duration of sunlight through orientation to cardinal points, size of lighting aperture and external shading screens.

9. Amount of daylight, effect of size and position of lighting aperture on the amount and distribution of daylight in a room. The effect of pre-set structures on the quantity and quality of lighting.

10. Choice of surface colours of building structures, relationship to light reflectance. Assessment of the likelihood of glare risk.

11. Sound insulation or air and noise tightness. Parameters of materials, calculation determination. Importance of corrections for the effect of secondary sound propagation paths.

12. Sound propagation in building interiors, importance of absorptive and reflective properties of building structures. Opportunities for noise reduction through proper structural design.

13. Sound propagation from the building to the outside, necessary properties of designed screens.

Syllabus of tutorials:

1. Energy performance of the building (evaluation of the model FH by calculation with hourly steps, analysis of the influence of glazing parameters, analysis of the influence of the window shading method, analysis of the weight of internal structures)

2. Energy performance of the building (calculation of delivered and primary energy, consideration of photovoltaic system, creation of energy certificate)

3. Consultation (independent work of students in the PC classroom)

4. Consultation (independent work of students in PC classroom)

5. Risk of overheating in summer (calculation of room temperature according to EN ISO 52016-1, analysis of the effect of different shading devices)

6. Consultation (independent work by students in the PC classroom)

7. Assessment of the solar gain in different shading situations, consideration of the influence of pre-set structures and orientation to the cardinal points.

8. Assessment of daylighting in the specific space, taking into account the effect of the size and position of the lighting aperture.

9. An assessment of the likelihood of the risk of potential glare in a given classroom depending on the position of the glare source and the observer.

10. Consultation

11. Calculation of the frequency-dependent partitioning structure opacity, determination of the weighted and unweighted structure opacity.

12. Calculation of room noise as a function of source noise and room parameters, calculation of outdoor noise as a function of envelope parameters and position of illuminating opening.

13. Consultation, credit.

Study Objective:

Deepening of knowledge and practice in the field of evaluation of hygro-thermal behaviour of building constructions and buildings, in the field of evaluation of acoustic properties of constructions and spaces and in the field of evaluation of daylighting and glare in buildings.

Study materials:

!Decree of the Ministry of Industry and Trade of the Czech Republic No. 264/2020 Coll. on the energy performance of buildings.

!ČSN 73 0540 Thermal protection of buildings - Part 1-4, ÚNMZ Prague, October 2005-2012

! KAŇKA, Jan., NOVÁČEK, Jiří. Building physics 3: Acoustics of buildings. Prague: Czech Technical University in Prague, 2015. 129 p. ISBN 978-80-01-05674-5.

! VYCHYTIL, Jaroslav. Building lighting technology - exercises. Prague: Czech Technical University in Prague, 156 p. 2015. ISBN 978-80-01-05858-9.

! VYCHYTIL, Jaroslav., KAŇKA, Jan. Building lighting technology - lectures. Prague: Czech Technical University in Prague, 176 p. 2016. ISBN 978-80-01-06060-5.

? ČSN 73 0532 Acoustics - Protection against noise in buildings and assessment of acoustic properties of construction products - Requirements, ÚNMZ Prague, December 2020.

? ČSN EN 17037 Day lighting in buildings, ČAS Prague, August 2019.

:Study aids (presentations and handouts) available after logging in on the course website.

Note:

Time-table for winter semester 2023/2024:

	06:00–08:0008:00–10:0010:00–12:0012:00–14:0014:00–16:0016:00–18:0018:00–20:0020:00–22:0022:00–24:00
Mon	roomTH:A-434 14:00–15:50 (lecture parallel1) Thákurova 7 (budova FSv) A434
Tue
Wed
Thu	roomTH:A-534 10:00–11:50 (lecture parallel1 parallel nr.102) Thákurova 7 (budova FSv) A534roomTH:A-534 12:00–13:50 (lecture parallel1 parallel nr.103) Thákurova 7 (budova FSv) A534
Fri

Time-table for summer semester 2023/2024:

Time-table is not available yet

The course is a part of the following study plans:

• Budovy a prostředí, specializace Technická zařízení budov (compulsory course)
• Budovy a prostředí, specializace Stavební fyzika (compulsory course)