Unit BUILDING ENERGY PERFORMANCE, HVAC SYSTEMS AND RENEWABLE ENERGY PLANTS

Course
Environmental engineering
Study-unit Code
A002615
Curriculum
Ambiente e energia
Teacher
Elisa Moretti
CFU
11
Course Regulation
Coorte 2022
Offered
2022/23
Type of study-unit
Obbligatorio (Required)
Type of learning activities
Attività formativa integrata

RENEWABLE ENERGY POWER PLANTS

Code GP004448
CFU 5
Teacher Elisa Moretti
Teachers
  • Elisa Moretti
Hours
  • 40 ore - Elisa Moretti
Learning activities Affine/integrativa
Area Attività formative affini o integrative
Academic discipline ING-IND/11
Type of study-unit Obbligatorio (Required)
Language of instruction Italian
Contents Renewable energy sources: classification and overview.
Photovoltaic and solar thermal energy.
Wind Energy.
Geothermal energy.
Biomass energy.
Italian incentive policies.
Reference texts Teacher/Lecture Notes (pdf)
Educational objectives The aim is to provide students with knowledge and competence needed for Renewable Heat and Power systems design. The sizing criterions for the main components of a plant will be acquired.

Main knowledge acquired will be:
Knowledge of the methodologies for designing a renewable plant;
Knowledge of the systems and components;
Knowledge of the sizing criterion for the main components of the plants;
Knowledge of technical solutions (working mode and performance);
The main competence (i.e. The ability to apply the acquired knowledge) will be:
Design of a plant;
Choice and sizing of the main components of plants;
Plant design solutions in compliance with current regulation on energy savings.
Economic analysis of a plant.
Prerequisites In order to be able to understand and to apply the of the topics of the Course, students should know have the basic notions acquired in the Three-year Degree course, especially in the Applied Thermodynamics and Heat Transfer and Hydraulics courses.

Knowledge of these notions is a mandatory prerequisite for attending the course with profit.
Teaching methods Theoretical lessons and practical training
Field trips
Other information The students should develop a project (Term paper) which should be revised before the exam.
Learning verification modality The exam consists of an oral test and the presentation of a work on topics regarding the teaching course, made by the students individually or in a group and concerning a case study. The oral test consists of an interview of about 20-30 minutes long in order to verify the knowledge level and the understanding capability acquired by the student on theoretical and methodological contents.

The examination will also check the student communication skills and his ability in the exposure of the theoretical aspects.
Extended program 1) RENEWABLE ENERGY OVERVIEW
Renewable energy sources classification. Use of renewable sources and perspectives: European and national scene.

2) SOLAR ENERGY
Photovoltaic energy: Main features. Solar radiation potential estimation and site analysis. Type of installations and design criteria. Photovoltaic conversion, solar cell materials - production and features, components of a photovoltaic power plants, technical and economic evaluation. Legislation. Examples of small and medium -scale PV power plants.
Solar thermal energy: Components of solar thermal energy plants. Types and yields of solar collectors. Sizing the solar thermal systems.
Concentrating Solar Power (CSP) systems.

3) WIND ENERGY
Main features. Wind potential. Betz theory. Wind turbines and wind farms. Environmental impact. Technical and economic evaluation. Application examples.

4) LOW ENTHALPY GEOTHERMAL ENERGY
Main features. Geothermal resource. Subsoil characterization. Ground Response Test. Heat pumps classification. Sizing of the vertical and horizontal geothermal probes. Technical and economic evaluation.

5) ENERGY FROM BIOMASS
Classification of biomass. Physical-chemical characterization of biomass. Thermochemical conversion processes: combustion and gasification. Biochemical conversion processes: anaerobic digestion. Vegetable oils extraction. Biomass-fueled cogeneration systems. Technical and economic evaluation

6) ECONOMIC ANALYSIS, INCENTIVES AND AUTHORIZATION PROCEDURES for renewable heat and electricity production.

BUILDING ENERGY PERFORMANCE AND HVAC SYSTEMS

Code A002616
CFU 6
Teacher Elisa Moretti
Teachers
  • Elisa Moretti
Hours
  • 48 ore - Elisa Moretti
Learning activities Affine/integrativa
Area Attività formative affini o integrative
Academic discipline ING-IND/11
Type of study-unit Obbligatorio (Required)
Language of instruction Italian
Contents Thermohygrometric comfort and indoor air quality.

Thermal and cooling loads of buildings. Italian Laws and Technical Standards.

Energy efficiency and sustainability in buildings.

Heating, Ventilation and Air-Conditioning (HVAC) Systems: classification and design criteria. Statutory requirements.

Boilers, refrigerating machines and heat pumps machines

Combined Heat and Power systems.
Reference texts 1. Teacher/Lecture Notes (pdf)

2. Cinzia Buratti, Impianti di Climatizzazione e Condizionamento, Morlacchi Editore, Seconda Edizione settembre 2015. ISBN:978-88-6074-709-9
Educational objectives The aim is to provide students with knowledge and competence needed for HVAC systems and Combined Heat and Power systems design. The sizing criterions for the main components of a plant (air distribution systems, air treatment unit, water distribution system, boilers, refrigerating machines and heat pumps machines) will be acquired.

Main knowledge acquired will be:

- Knowledge of the methodologies for buildings thermal loads calculation in compliance with statutory requirements;
- Knowledge of the HVAC systems and components;
- Knowledge of the sizing criterion for the main components of HVAC
- Knowledge of boilers, refrigerating machines and heat pumps machines (working mode and performance);

The main competence (i.e. The ability to apply the acquired knowledge) will be:
- Design of a HVAC plant;
- Sizing of the main components of HVAC systems;
- Choice and sizing of boilers, refrigerating machines and heat pumps machines;
- Plant design solutions in compliance with current regulation on energy savings.
Prerequisites In order to be able to understand and to apply the of the topics of the Course, students should know have the basic notions acquired in the Three-year Degree course, especially in the Applied Thermodynamics and Heat Transfer and Hydraulics courses.

Knowledge of these notions is a mandatory prerequisite for attending the course with profit.
Teaching methods Theoretical lessons and practical training
Field trips
Other information The students should develop a project (Term paper) which should be revised before the exam.
Learning verification modality The exam consists of an oral test and the presentation of a work on topics regarding the teaching course, made by the students individually or in a group and concerning a case study. The oral test consists of an interview of about 20-30 minutes long in order to verify the knowledge level and the understanding capability acquired by the student on theoretical and methodological contents.

The examination will also check the student communication skills and his ability in the exposure of the theoretical aspects.
Extended program 1) THERMOHYGROMETRIC COMFORT AND INDOOR AIR QUALITY
Thermal sensation and comfort indexes (temperature, relative humidity, air speed, etc..). Air quality and ventilation in buildings: simplified methods of design and filtration systems.

2) ENERGY PERFORMANCE OF BUILDINGS
Internal and external conditions design. Calculation of thermal loads in summer and winter. External (transmission through the building envelope, infiltration, ventilation) and internal loads (people, equipment, lighting) calculation. Material and methods for energy efficiency and sustainability in buildings. Energy requirements for buildings: national Laws and regulations for the Energy Performance Certificates. Application to a case study.
3) HVAC SYSTEMS
Classification of air conditioning systems. Design criteria for HVAC systems.. Description and design of the HVAC elements: air terminals, air ducts, fan coils, heating and refrigeration equipment.

4) BOILERS, REFRIGERATING MACHINES AND HEAT PUMPS MACHINES: working mode, classification, performance and design criteria

5) COMBINED HEAT AND POWER SYSTEMS (CHP).
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