Thermal Protection of Buildings

Garant předmětu:

Přednášející:

Cvičící:

Předmět zajišťuje:

katedra konstrukcí pozemních staveb

Anotace:

Extension of knowledge from basic course of thermal protection of buildings. Input data for calculations, standard and advanced models of thermal and moisture behaviour of constructions, multidimensional heat and moisture transfer. Energy performance of buildings using dynamic simulation in hourly step. Fundamentals of CFD modelling (heat transfer by conduction, radiation and convection in building constructions and buildings).

Požadavky:

Good knowledge of building physics fundamentals.

Osnova přednášek:

1. Overview of basic properties and requirements on building constructions (thermal transmittance, internal surface temperature and temperature factor, water vapor condensation)

2. Dynamic simulation models of hygro-thermal behavior of constructions (practical introduction to the WUFI program, input data, calculation options, outputs and their processing)

3. Energy performance of buildings (basic principles of calculation according to EN ISO 52016-1, mean thermal transmittance, energy need for heating and cooling, total energy use and primary energy, production of energy by photovoltaics, cogeneration and solar collectors)

4. CFD analyses of thermal and moisture behaviour of constructions (practical introduction to ANSYS (Mechanical), input data, calculation models, output data and their processing, stationary and transient heat transfer by conduction)

5. CFD analyses of thermal and moisture behaviour of constructions (practical introduction to Ansys FLOVENT, steady state heat transfer by conduction, convection and radiation in a closed air cavity)

6. CFD analyses of thermal and moisture behaviour of constructions (practical introduction to Ansys FLOVENT, steady state heat transfer by conduction, convection and radiation in an open (ventilated) air cavity, water vapour diffusion)

Osnova cvičení:

1. Basic evaluation of a building construction (approximate and exact calculation of thermal transmittance, standard calculation of moisture transfer according to EN ISO 13788)

2. Advanced modelling of hygro-thermal processes in a building construction (dynamic simulation of the thermal and moisture behaviour of the model construction (hourly step), effects of rain and solar radiation)

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

4. Evaluation of thermal bridge/joint (various ways of entering the detail (graphic preprocessor, import of DXF format), calculation of temperature and humidity field, internal surface temperature and linear thermal transmittance, input of the effect of the internal heat source)

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

6. Evaluation of the thermal performance of a building (evaluation of model family house by calculation with hourly step, analysis of the influence of glazing parameters and window shading method, analysis of the weight of internal structures)

7. Evaluation of the thermal performance of a building (calculation of energy use and primary energy, consideration of the photovoltaic system, creation of an energy performance certificate)

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

9. Fundamentals of modelling thermal and moisture processes in ANSYS (input using DesignModeller and DXF file, calculation of steady-state and transient heat transfer by conduction, plotting the results and determining the derived values (integration, average, selection of maximum and minimum))

10. Fundamentals of modelling thermal and humidity processes in ANSYS (calculation of steady-state heat transfer by radiation and convection, possibilities of evaluation of water vapour diffusion)

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

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

13. Credit, reserve

Cíle studia:

Deepening of knowledge in the field of computational evaluation of thermal-moisture behaviour of building constructions and buildings.

Studijní materiály:

!EN ISO 52016-1 Energy performance of buildings - Energy needs for heating and cooling, internal temperatures and sensible and latent heat loads - Part 1: Calculation procedures, CEN 2017.

?Hugo S. L. Hens: Building Physics - Heat, Air and Moisture: Fundamentals and Engineering Methods with Examples and Exercises, Ernst & Sohn, 2012, ISBN 978-3-433-60235-5.

?Knaack U. - Koenders E.: Building Physics of the Envelope (Principles of Construction), Birkhauser, 2018, ISBN 978-3-035-61145-8.

:Study documentation (lectures and other information) available after login to web page of the course.

:Study documentation on web pages of lecturers.

:Web pages of ANSYS software.

Poznámka:

Další informace:

http://kps.fsv.cvut.cz/index.php?lmut=cz&part=vyuka&sub=semestr&type=LS&kod=124TPBU

Rozvrh na zimní semestr 2024/2025:

	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
Po	místnost TH:A-534 09:00–09:50 (přednášková par. 1) Thákurova 7 (budova FSv) A534místnost 10:00–11:50 (přednášková par. 1 paralelka 101)
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Rozvrh na letní semestr 2024/2025:

Rozvrh není připraven

Předmět je součástí následujících studijních plánů:

• Buildings and Environment (povinný předmět)