FISICA TECNICA E IMPIANTI

Academic Year 2024/2025 - 4° Year
Teaching Staff: Vincenzo COSTANZO
Credit Value: 10
Scientific field: ING-IND/11 - Building physics and building energy systems
Taught classes: 56 hours
Exercise: 24 hours
Term / Semester:

Expected Learning Outcomes

The main purpose of the course is to describe and study the thermo-physical phenomena that determine the energy-environmental performance of the building and the consequent connections with architectural design. The topics necessary for understanding the interaction between the external environment - building - internal environment are covered in order to highlight the implications for an energy-aware design capable of guaranteeing adequate levels of thermal and visual comfort

Course Structure

Lectures and classwork​

Required Prerequisites

Physics and mathematics

Attendance of Lessons

Attendance of lessons is not mandatory but it is highly recommended

Detailed Course Content

1. Thermodynamics 
Thermodynamic system. General energy equation. Thermodynamic processes. Work equations in systems with and without flow. First law of thermodynamics. Enthalpy in systems. Second Law of Thermodynamics. Carnot cycle and Entropy. Thermodynamic diagrams. Ideal gases. Real Gases. Mollier diagram. Notes on direct and indirect cycles. Energy in systems.
2. Fluid dynamics
Motion of compressible and incompressible fluids. Friction factors. Pressure losses due to friction. Fluid motion in elementary geometries. Air movement in the ducts. Sizing of ducts and pressure equipment.
3. Heat transfer
Thermal conduction for flat, cylindrical and spherical geometry in steady state. Thermal convection for flat, cylindrical and spherical geometry in steady state. Thermal radiation for flat, cylindrical and spherical geometry in steady state. Global heat transmission. Heat exchangers.
4. Thermodynamics of humid air
Parameters characterizing the air, characteristic diagrams, transformations of humid air, treatments of humid air in HVAC systems. Use of the psychrometric diagram for determining the transformations and related calculations for the main equipment present in air conditioning systems.
5. Heating and DHW production systems
Thermo-hygrometric comfort. Permanent heat transmission through the building envelope for determining the winter heat loads necessary for sizing the heating system. Regulations relating to energy saving purposes. Autonomous systems with wall-mounted boiler. Pre-sizing of heating systems powered by boiler and heat pump.
6. Cooling systems
Heat transmission in a variable regime and in the presence of solar radiation for the purpose of evaluating the summer heat loads necessary for the sizing of air conditioning systems. Classification, description and pre-sizing of air conditioning systems.

7. Lighting technology
Photometric quantities and visual performance. Natural lighting. The perception of light and visual comfort. Artificial light sources and artificial lighting systems.

8. Solar thermal and photovoltaic systems

Calculation of captured solar energy. Estimate of domestic hot water energy requirements. Estimate of electricity needs. Calculation of collecting surface and number of collectors/panels. Checking the distance between collectors/panels. Estimated accumulation volume. Components of the photovoltaic system. Design, installation and maintenance of a photovoltaic system.

Textbook Information

  1. Barney L. Capehart, Ph.D., CEM, Wayne C. Turner, Ph.D. PE, CEM, William J. Kennedy, Ph.D., PE, Guide to Energy Management, CRC Press
  2. Yunus Cengel, Heat and Mass Transfer: Fundamentals and Applications McGrawhill
  3. Duco Schreuder, Outdoor Lighting: Physics, Vision and Perception, Springer

Learning Assessment

Learning Assessment Procedures

The exam consists of verifying the theoretical and practical knowledge of the topics covered during the course through ongoing tests reserved only for students who attend at least 75% of the lessons and a written test for the remaining students, with a maximum obtainable grade of 26/30.

Both types of students, if interested in improving their assessment, can also take the oral test


Examples of frequently asked questions and / or exercises

Energy balances of thermophysical systems

Mechanical systems for the production of heat and cold

Air conditioning cycles

Heat transmission mechanisms

Heat exchangers

Calculation of pressure drops in distribution ducts

Natural lighting and daylight factor

Types of lamps and methods for artificial lighting design

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