07_11_BEM

1.

EX6 – ADVANCED
BUILDING PHYSICS

2.

ENERGY BALANCE
Numerical method
Energy
Balance
DYNAMIC METHOD

3.

Building Energy Modelling
Building energy modelling (BEM) or building performance
simulation (BPS) is the replication of aspects of building
performance using a computer-based, mathematical model
created on the basis of fundamental physical principles and
sound engineering practice. The objective of building
performance simulation is the quantification of aspects of
building performance which are relevant to the design,
construction, operation and control of buildings. Building
performance simulation has various sub-domains; most
prominent are thermal simulation, lighting simulation,
acoustical simulation and air flow simulation.

4.

Building Energy Modelling
Geometry, location and
orientation
Envelope performance
Space loads
Image source: https://www.chaac-inc.com/building-energy-modeling.html
Operational profiles
Energy generation
Systems characterisation

5.

Building Energy Modelling
Geometry, location and
orientation
Envelope performance
Space loads
Image source: https://www.chaac-inc.com/building-energy-modeling.html
Operational profiles
Energy generation
Systems characterisation

6.

TAKE ACTION
Download from WEBEEP the file
• «ITA_Milano-Linate_160800_IGDG.epw»
• «ABP_model_inclass.json»
To deepen geometry modelling, you can access to many tutorial online.
I.e.,https://www.youtube.com/watch?v=4gyUOZlGFVM&list=PLa_fwjhg5GCgNU09yJ9puVPWYTbCD01SN&index=1

7.

Building Energy Modelling
https://www.google.com/url?sa=i&url=https%3A%2F%2Farxiv.org%2Fpdf%2F2103.01761&psig=AOvVaw2kiqxIs1TOiwcbE6qwS_DE&ust=1698308040710000&source=images&cd=vfe&opi=89978449&ved=0C
BMQjhxqFwoTCOjj3c3gkIIDFQAAAAAdAAAAABAE

8.

Building Energy Modelling
Strong modelling simplifications + building archetypes
https://www.google.com/url?sa=i&url=https%3A%2F%2Farxiv.org%2Fpdf%2F2103.01761&psig=AOvVaw2kiqxIs1TOiwcbE6qwS_DE&ust=1698308040710000&source=images&cd=vfe&opi=89978449&ved=0C
BMQjhxqFwoTCOjj3c3gkIIDFQAAAAAdAAAAABAE

9.

Building Energy Modelling
Geometry, location and
orientation
Environmental characterisation
• Geometry
Context
Object zones
• Location
EPW
• Orientation
Building orientation
Image source: https://www.chaac-inc.com/building-energy-modeling.html
Building characterisation

10.

Case study - GEOMETRY
The model – thermal zones
SECTION
PLAN
4