The aim of the course is to acquaint students with methods for determining the energy performance of buildings, the complete process of conducting an energy audit and preparing a building's energy certificate, and with the application of energy efficiency measures and renewable energy sources in order to meet the requirements for buildings with zero CO2 emissions from fossil fuels.

Student responsibilities:

Attendance at lectures and exercises. Seminar paper. Exam.

Grading and evaluation of student work over the course of instruction and at a final exam:

Class activities: 5%. Completing assignments given during exercises: 10%. Seminar paper grade: 50%. Oral exam grade based on analysis of results from seminar paper: 35%

Upon successful completion of the course, students will be able to (learning outcomes):

1 . Determine and analyze heat flows in real conditions in the building.

2 . Conduct an energy audit of the building.

3 . Calculate the energy performance of the building.

4 . Propose and evaluate measures for improving the energy performance of buildings.

5 . Prepare an energy certificate of the building.

Lectures

1. Implementation of the Energy Performance of Buildings Directive. Nearly zero-energy buildings and zero-emission buildings.

2. Physical processes in building components: Overall heat transfer coefficients, Thermal expansion. Heat accumulation, Water vapor diffusion, Dew point, Condensation, Dehumidification.

3. Characteristic measurements in buildings. Application of infrared thermography.

4. Analysis of the building and building components (walls, floors, roofs, glazing). Thermal bridges. Thermal protection measures.

5. Hourly method for calculating the annual thermal energy required for heating and cooling a building. Meteorological data.

6. Annual thermal energy required for ventilation and air conditioning of the building.

7. Annual heat losses of space heating and domestic hot water heating systems.

8. Annual heat losses from the building's space cooling, ventilation and air conditioning systems.

9. Calculation of solar thermal and photovoltaic systems, biomass heating devices and district heating systems.

10. Application and calculation of heat pumps.

11. Energy audit of the building.

12. Annual delivered and primary energy of the building. Share of renewable energy in the building's energy consumption. Lifecycle global warming potential (GWP). Assessment of the level of application of smart technologies (SRI).

13. Preparation of energy certificate.

14. Measures to improve energy efficiency and the use of renewable sources in renovated and new zero-emission buildings.

15. Cost-optimal building analysis. Selection of optimal technical solutions.

Exercises

1. Analysis of individual provisions of the Directive in relation to technical regulations in the Republic of Croatia.

2. Thermal properties and calculation of the overall heat transfer coefficient.

3. Preparation of input data for the calculation of energy performance of buildings.

4. Seminar - Types of thermal bridges and application of infrared thermography. Air permeability measurement.

5. Calculation of QH,nd and QC,nd for residential and non-residential buildings. Using a computer program for building certification and meteorological data from online databases (JRC).

6. Calculation of energy requirements and heat losses of ventilation and air conditioning systems Qve. Using a computer program for building certification.

7. Calculation of heat losses in heating and domestic hot water systems. Use of computer software for building energy certification.

8. Calculation of heat losses of cooling, ventilation and air conditioning systems. Using computer software for building certification.

9. Calculation of energy requirements and heat losses of solar thermal and photovoltaic systems, biomass heating devices and district heating systems. Use of computer software for building energy certification.

10. Calculation of required energy and heat losses of heat pumps. Using a computer program for energy certification of buildings.

11. Seminar - conducting a building energy audit and preparing a report. Examples.

12. Calculation of delivered and primary energy in residential and non-residential buildings and the share of renewable energy in the building's energy consumption. Examples. Overview of input data for seminar paper calculations.

13. Seminar - Preparing a building energy certificate. Review of input data in the calculations of seminar papers.

14. Presentation and analysis of seminar papers: Preparation of energy audit report and energy certificate. Review of input data in the calculations of seminar papers.

15. Presentation and analysis of seminar papers: Preparation of energy audit report and energy certificate.

Compulsory literature:

1. Manual for energy certification of buildings, I. Boras, D. Dović, V. Soldo, UNDP, Zagreb, 2010, p. 0-0

2. Teaching materials-presentations, Energy certification of buildings, I. Boras, D. Dović, V. Soldo, FSB, Zagreb, 2024, p. 0-0

Recommended literature:

3. Algorithms for calculating the energy performance of buildings, D. DovIć, V. Soldo, MGIPU, 2017, p. 0-0