case study – the importance of thermal storage in managing the energy in the built environment
TRANSCRIPT
R i k a r d L a r s s o n -
D i r e c t o r
T h e r m a l S t o r a g e i n t h e B u i l t
E n v i r o n m e n t
The research in short
Energy Flows
Using the time constant
Balance temperature
Theory Vs. reality
Thermal Storage in the Built Environment
- Isfält & Bröms - Royal Institute of.Technology,
Stockholm
- 80%
Covering:
Structure
Indoor temperature range Vs. fixed
Time constant
New methodology
The Research in Short
Energy flows
Energy loss
Purchased energy
Free energy
How to use the Free and exess
Purchased energy
Energy storage
Energy Flows in a normal building
Aceeptable temperature range
8oC = 80%
3-4oC = 20-40%
0oC = 0%
Balance Temperature
Temperature
Balance temperature
Aceeptable temperature range
8oC = 80%
3-4oC = 20-40%
0oC = 0%
Balance Temperature
Temperature
Balance temperature
Municipal buildning: Highschool
Healthcare: Clinic
Commercial buildings: Office, Railway station
Theory Vs. Reality
+ = 20-40%... Or
Temperature
Municipal Building
Type of building: Highschool Town: Tierp Size: 17 500 m2
Material Brick and concrete Heating: Distric Heating
Heat saving : 32%
Power Signature
Healtcare
Type of building: Clinic Town: Jönköping Size: 11 000 m2
Material Concrete Heating: Distric Heating
Heat saving : 46%
Power Signature
Commercial Building
Type of building: Office Town: Stockholm Size: 15 000 m2
Material Concrete & Glas Heating: Distric Heating
Heat saving : 55%
Power Signature
Commercial Building
Type of building: Train Station Town: Gothenburg Size: 25 400 m2
Material Brick and concrete
Heating: Distric Heating Heat saving : 24%
Power Signature
Summary:
The research in short
Energy Flows
Using the time constant
Balance temperature
Theory Vs. reality
Thermal Storage in the Built Environment:
+ = 20-40%...
Temperature