Course Details

Thermal engineering

Academic Year 2022/23

BHA024 course is part of 1 study plan

BPC-EVB Winter Semester 1st year

Thermal resistance of the structure.
Thermal transmittance.
Surface temperature of the budilding structure.
Temperature evaluation in the structure.
Average thermal transmittance if the building envelope.
Interstitial condensation and evaporation.
Thremal stability of the room.
Air permeability of the building envelope.
Thermal energy storage.

Course Guarantor

prof. Ing. Milan Ostrý, Ph.D.

Institute

Institute of Building Structures

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. Introduction, motivation, historical development, related laws, regulations, standards, heat transfer.
2. Thermal properties of building materials, sources of information, definition of thermal comfort.
3. Boundary conditions for calculations, definition of steady state thermal field, thermal resistance, total therma resistance.
4. Thermal transmittance - calculation when considering one-dimensional or two-dimensional heat transfer, evaluation, influence of reflective properties of materials.
5. The average (overal) thermal transmittance of the building envelope,the energy label of the building envelope.
6. Temperatures in building structures in steady state temperature field, lowest internal surface temperature of the structure, calculation of the temperature factor at the internal surface and its evaluation.
7. Calculation of the thermal transmittance when of one-dimensional heat transfer cannot be applied, thermal bridges, linear and point thermal transmittance
8. Water vapour tranfer through the building structures, calculation of the interstitial condensation , calculation of the annual balance of interstitial evaporation and condensation and evaluation.
9. Description of non steady temperature field, thermal damping, drop of the touch temperature of the floors and its evaluation.
10. Thermal room stability in summer and winter, definition of critical room, evaluation.
11. Introduction to the energy performance of the building, introduction to the energy performance certificate of the building.
12. Air permeability of building envelope, airtightness measurement, diagnostics of building structures by infrared thermography method.
13 Thermal energy storage - technical solutions.

Prerequisites

Knowledge of the fundamental physical values, thermal properties of building materials and compositions of building structures.

Language of instruction

Czech

Credits

5 credits

Semester

winter

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

https://www.vut.cz/en/students/courses/detail/254019

Lecture

13 weeks, 1 hours/week, elective

Syllabus

1. Introduction, motivation, historical development, related laws, regulations, standards, heat transfer.
2. Thermal properties of building materials, sources of information, definition of thermal comfort.
3. Boundary conditions for calculations, definition of steady state thermal field, thermal resistance, total therma resistance.
4. Thermal transmittance - calculation when considering one-dimensional or two-dimensional heat transfer, evaluation, influence of reflective properties of materials.
5. The average (overal) thermal transmittance of the building envelope,the energy label of the building envelope.
6. Temperatures in building structures in steady state temperature field, lowest internal surface temperature of the structure, calculation of the temperature factor at the internal surface and its evaluation.
7. Calculation of the thermal transmittance when of one-dimensional heat transfer cannot be applied, thermal bridges, linear and point thermal transmittance
8. Water vapour tranfer through the building structures, calculation of the interstitial condensation , calculation of the annual balance of interstitial evaporation and condensation and evaluation.
9. Description of non steady temperature field, thermal damping, drop of the touch temperature of the floors and its evaluation.
10. Thermal room stability in summer and winter, definition of critical room, evaluation.
11. Introduction to the energy performance of the building, introduction to the energy performance certificate of the building.
12. Air permeability of building envelope, airtightness measurement, diagnostics of building structures by infrared thermography method.
13 Thermal energy storage - technical solutions.

Exercise

13 weeks, 2 hours/week, compulsory

Syllabus

1. Introduction, calculation of thermal resistance and thermal transmittance of existing structures.
2. Design of new structures, thermal insulation of existing structures, drawings of renovated building.
3. Calculation and assessment of thermal transmittance of new structures.
4. Design of windows and doors, calculation of thermal transmittance.
5. Calculation and assessment of average thermal transmittance.
6. Simplified calculation of thermal transmittance of the composite structure.
7. Internal surface temperature and temperature factor at the internal surface .
8. Temperature evolution in the structure.
9. Interstitial condensation.
10. Annual balance of condensed and evaporated water vapour.
11. Assessment of selected structures with the use of selected software.
12. Informative calculation of two-dimensional temperature field using software.
13. Final corrections, credit