SOSTENIBILITÀ ENERGETICO AMBIENTALE DEGLI EDIFICI

The course aims at providing the students with the technical and scientific base knowledge for designing low carbon and energy efficient buildings. After a review of the fundamental thermal parameters governing the thermal and hygrometric behavior of a building’s envelope and the energy efficiency of mechanical systems, the principles of thermal comfort and Indoor Air Quality (IAQ) are introduced and examined in depth.

On these bases, the main techniques and technologies for passive heating and cooling of buildings, as well as the best performing Heating Ventilation and Air Conditioning (HVAC) solutions available on the market, are dealt with. A specific module is devoted to renewable energy production from photovoltaic panels, solar thermal collectors, and their integration in existing buildings.

All these topics are tackled with a practical approach oriented towards the professional growth of the student in the broad field of building energy efficiency and sustainability. To this aim, certified software tools for the thermal and energy analysis of buildings – certified by Italian norms and exploitable in the licensed profession – are used along with relevant technical instrumentation.

Lectures and project work concerning the energy renovation of an existing residential building chosen by students.

The project work will be conducted in small groups of 2-3 students each and will cover the following aspects:

• Functional and geometric characterization of the building;
• Definition of the main thermal features of the glazed and opaque envelope including thermal bridges;
• Identification of HVAC systems and water systems;
• Characterization of photovoltaic panels and solar thermal collectors features (if present)

The design of the renovation solutions and their verification in terms of energy performances will be supported by the use of dedicated software tools developed by the Italian National Association for Thermal and Acoustic Insulation (ANIT). This set of freeware tools includes:

• PAN v.7.1: thermal, hygrometric and dynamic thermal properties definition of opaque envelope components;
• IRIS v.5.0: finite elements calculation of thermal bridges according to UNI EN 10211:2018 Standard;
• APOLLO v.1.0: thermal analysis of the glazed envelope components and their shading systems;
• LETO v.5.0: energy demand calculation according to UNI/TS 11300 Technical Standard series and release of the energy certificate of the building (APE)

1. Opaque envelope – heat transfer
2. Opaque envelope – hygrothermal analysis
3. Thermal bridges
4. Glazed envelope and shading systems
5. Thermal comfort
6. Indoor Air Quality (IAQ) and ventilation
7. Bioclimatic and passive heating and cooling of buildings
8. HVAC systems
9. Photovoltaic panels and solar thermal collectors
10. Normative requirements and energy certification process (APE)
11. Use of software tools for hygrothermal analysis and energy certification of buildings

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