79585 - Heating and Air Conditioning Systems T

Academic Year 2022/2023

  • Teaching Mode: Traditional lectures
  • Campus: Bologna
  • Corso: First cycle degree programme (L) in Energy Engineering (cod. 0924)

Learning outcomes

Building Physics. Design of water heating systems. Energy performance certification of buildings.

Course contents

Part I - Building physics: envelope thermal characterization

Indoor thermal comfort. Energy balance of the human body. Fanger approah to Comfort. Indoor Air Quality. Climatic data for the design of heating systems.

Evaluation of the thermal loads of a building. U.values calculation. Thermal bridges. Heat transfer in opaque and transparent envelope elements.Heat transfer across the ground. Ventialtion loads. Glaser method. Temperature factor method.

Part II - Design of water heating systems

Boilers. Boiler energy efficiency as a function of the load factor. Burners. Chimney sizing. Gas distribution networks. Heat emitters (radiators, fancoil, radiant heating panels). Control of heating systems. Sizing of hot water distribution networks. Domestic hot water (DHW) production.

Part III - Energy performance certification of buildings

UNI TS11300-1. Energy balance of a building. The role of solar energy contribution. Primary energy calculation. Renewable energy contribution. The rules of the Italian system for energy performance certification. Energy labels.

Readings/Bibliography

ASHRAE Handbook "Fundamentals" (SI edition)

ASHRAE Handbook "HVAC Systems and Equipment" (SI edition)

Pdf of the complete set of slides (in Italian) used during the course.

Teaching methods

Each lesson (in Italian) covers both theoretical and practical aspects. At least, one numerical example is shown for each topic.

Assessment methods

The exam is composed by two tests:

1) one written test (a numerical solution of a design problem)

2) one oral test

Teaching tools

Lessons are made by using slides (powerpoint).

A pdf copy of the slides (in Italian) is available for UNIBO students on Virtuale.

Office hours

See the website of Gian Luca Morini