Course Details
Thermal Protection of Buildings (S)
Academic Year 2023/24
BH059 course is part of 2 study plans
B-K-C-SI (N) / VS Summer Semester 2nd year
B-P-C-SI (N) / VS Summer Semester 2nd year
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.
Course Guarantor
Institute
Objective
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.
Knowledge
Fundamentals in the thermal protection and energy balance of buildings. Design of thermally insulated building constructions without thermal bridges and condensation problems. Evaluation of thermal comfort in low energy buildings. Introduction to acoustic and visual comfort in buildings.
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.
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.
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.
Language of instruction
Czech
Credits
4 credits
Semester
summer
Forms and criteria of assessment
course-unit credit and examination
Specification of controlled instruction, the form of instruction, and the form of compensation of the absences
Extent and forms are specified by guarantor’s regulation updated for every academic year.
Offered to foreign students
Not to offer
Course on BUT site
Lecture
13 weeks, 1 hours/week, elective
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
13 weeks, 2 hours/week, compulsory
Syllabus
1.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.