Course detail

Thermal Protection of Buildings

FAST-BH10Acad. year: 2013/2014

Proper design of thermal technical properties of building structures, rooms and buildings ensures the prevention of thermal defects and failures, ensuring the desired state of the internal environment and low energy performance of buildings. In addition to thermal and moisture microclimate can be optimized design of the structure and the doors and windows also provide the required acoustic microclimate. The optimal design size and type of window pane can affect the thermal, acoustic and visual comfort in the interior and the overall energy balance of the building.

Language of instruction

Czech

Number of ECTS credits

5

Mode of study

Not applicable.

Department

Institute of Building Structures (PST)

Learning outcomes of the course unit

Students in the course learn to perform basic thermal technical calculations. This knowledge will help them to properly design structures so as to meet the thermal and technical requirements for the design and verification of buildings with the state of the internal environment. In addition, students on the course will help in the design of structures in terms of elimination of thermal defects or failures and design of the building envelope in terms of heat transfer through the building envelope.
The students also learn to assess whether the conditions inside the building thermal comfort.
In addition to these skills will graduates of this course overview on the principles of designing buildings with low energy náročností.Také them will be briefly explained the basic principles of design of structures and buildings in terms of acoustic and visual comfort.

Prerequisites

Basic knowledge of mathematics, knowledge of the fundamental physical constants and thermal properties of building materials, physical characteristics of sound, the sound field theory, basic photometry.

Co-requisites

Thorough knowledge of construction materials and their thermal parameters, knowledge of proper engineering design of building structures, knowledge of current legislation on the thermal and energy performance of buildings.

Planned learning activities and teaching methods

Calculation and graphical methods, lectures and practices. Methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations.

Assesment methods and criteria linked to learning outcomes

Attendance, submission of corrected protocols, the final test, the successful completion of written and oral exams.

Course curriculum

1. Fundamentals in heat transfer. Thermal comfort in buildings.
2. Steady state thermal conditions, U-value determination.
3. Temperature profile for steady state conditions.
4. Risk of a surface condensation and mould grows, critical surface temperature, dew point temperature.
5. Thermal bridges.
6.-7. Assessment and determination of condensation regions into building constructions. Annual balance of condensed and evaporated amounts in building constructions.8. Non-steady state thermal conditions.
9. Temperature drop on floor finishing, floor category.
10. Thermal stability of rooms in winter and summer seasons.
11. Energy legislation.
12. Evaluation of energy efficiency of buildings.
13. Visual and acoustic comfort in buildings.

Work placements

Not applicable.

Aims

Introduction course to the thermal protection of buildings, design requirements for thermally insulated buildings envelopes and constructions, assessment of indoor thermal and visual and acoustic comfort.

Specification of controlled education, way of implementation and compensation for absences

Extent and forms are specified by guarantor’s regulation updated for every academic year.

Recommended optional programme components

Participation in seminars and conferences organized by the faculty.

Prerequisites and corequisites

Not applicable.

Basic literature

Příslušné platné normy a vyhlášky. 0. (CS)
Straaten, J.F.: Thermal Performance of Building. Elsevier Publ.Co., London, 1967. (EN)
Reid, E.: Understanding Building. Addison Wesley, London, 1996. (EN)
Halahyja, H., Chmúrny, I., Sternova, Z.: Stavební tepelná technika; Tepelná ochrana budov. Jaga group Bratislava, 1998. (SK)
ČSN 73 0540-1,2,3,4 Tepelná ochrana budov, části 1 až 4. 2005. (CS)

Recommended reading

Bahula,J,Kalousek,M.: Tepelná technika budov. Cvičení. VUT Brno, 1999. (CS)
Kulhánek,F, Tywoniak, J: Stavební fyzika 20. Stavební tepelná technika. ĆVUT Praha, 1999. (CS)
Zákon č.406/2000 Sb. o hospodaření energií ve znění pozdějších předpisů. 2000. (CS)
Vaverka, J., a kol.: Stavební tepelná technika a energetika budov. VUT v Brně, VUTIUM, 2006. (CS)
Směrnice Evropského parlamentu a rady 2010/31/ES. o energetické náročnosti budov. 2010. (CS)

Classification of course in study plans

  • Programme B-P-C-ST Bachelor's

    branch S , 3. year of study, winter semester, compulsory

  • Programme B-P-C-SI Bachelor's

    branch S , 4. year of study, winter semester, compulsory

  • Programme B-P-E-SI Bachelor's

    branch S , 4. year of study, winter semester, compulsory

  • Programme B-K-C-SI Bachelor's

    branch S , 4. year of study, winter semester, compulsory

Type of course unit

 

Lecture

26 hours, optionally

Teacher / Lecturer

Syllabus

1. Fundamentals in heat transfer. Thermal comfort in buildings.
2. Steady state thermal conditions, U-value determination.
3. Temperature profile for steady state conditions.
4. Risk of a surface condensation and mould grows, critical surface temperature, dew point temperature.
5. Thermal bridges.
6.-7. Assessment and determination of condensation regions into building constructions. Annual balance of condensed and evaporated amounts in building constructions.8. Non-steady state thermal conditions.
9. Temperature drop on floor finishing, floor category.
10. Thermal stability of rooms in winter and summer seasons.
11. Energy legislation.
12. Evaluation of energy efficiency of buildings.
13. Visual and acoustic comfort in buildings.

Exercise

26 hours, compulsory

Teacher / Lecturer

Syllabus

1.Introduction introduction to the issues, recommended reading, the possibility of using computer technology, award structures and premises, requirements.
2.Coefficient transmittance - assessment of all assigned existing structures. Calculation of thermal transmittance Uw windows.
3.Design and assessment of external walls "A" and "B" and flat roofs "C" to meet the required and recommended heat transfer coefficient according to the current wording of CSN 73 0540-2
4.Numerical and graphics solutions at all temperatures during the given structures for steady-state temperature. Assessment of the temperature factor of the internal surface of the components "A", "B" and "C" and modified components "A" and "C".
5.Approximate calculation of the coefficient of heat transfer (thermal resistance of structures), which can not be considered one-dimensional heat transfer (roof, wall timber, sandwich panel, etc.).
6.Lowest inner surface temperature structure (thermal factor inner surface fRsi) in the corners (thermal bonding, thermal bridges). Assess total of 5 parts (AB, BC, AC, BF and modified structures AC).
7.Detectionthe condensation on peripheral wall of the "A" flat roof "C". Draft vapor diffusion properties (layers with high diffusion resistance, gravel) in the peripheral wall of "A" at the bathrooms.
8.Calculation of the annual balance of evaporation and condensation of water vapor in the perimeter wall of the "A".
9.Calculation annual balance of condensation and evaporation of water in the perimeter wall or a flat roof with computer technology, an example of calculating the thermal stability in summer.
10.Temperature drop on the floor Δθ10.
11.Average heat transfer coefficient Uem calculated for a building with existing and new structures.
12.Design internal dividing walls between apartments to suit the requirements in terms of sound insulation according to the current version CSN 730532
13.Credits.