Presentation in the Facilities, Innovation and Technology Theatre at EMEX, The Energy Management Exhibition on 22-23 November 2017

1. David Mason Viktor Lindström
U t i l i s i n g y o u r B u i l d i n g A s s e t s t o I m p r o v e I n d o o r
C l i m a t e a n d R e d u c e E n e r g y C o n s u m p t i o n

2. Content
o The Theory
o Practical Application
o Measurement & Verification
o Outcomes & Results
Simplifies our everyday
life.
Intelligen
ce for
Building
Management
Systems
working
24/7

3. Heat gain:
• Solar heating
• Body heat
• Electrical systems
• Heating systems
Heat losses:
• Cooling systems
• Cold water
• Ventilation losses
• Transmission losses
• Cold water losses
• Air leakage
• Sewage losses
• Flue gas losses
• Radiant losses
𝐸𝑖𝑛 = 𝐸 𝑜𝑢𝑡
Energy balance in a building

4. Heat gain:
• Solar heating
• Body heat
• Electrical systems
• Heating systems
Heat losses:
• Cooling systems
• Cold water
• Ventilation losses
• Transmission losses
• Cold water losses
• Air leakage
• Sewage losses
• Flue gas losses
• Radiant losses
𝐸𝑖𝑛 = 𝐸 𝑜𝑢𝑡
Outdoor temperature [°C]
Variabletemperature[°C]
Modern Control Strategy – Outdoor-compensated heat curve

5. Isfält & Bröms,
1992
-85%
Energy supplied by the heating system as a function of "free heat" in kWh/year
20 < tr < 22°C
The Theory
Suppliedenergyfromtheheatingsystem
[kWh]
Sun and internal heat [kWh]

6. Thermal Mass Effects on Indoor Climate
25°C
15°C

7. From Theory to Application
Leverage…To manage…

8. • Lower internalloads andtherefore
more heating needed
• Rainy/windyday
• Higher internal loads (PC’s,people,
activity)
• Sunny,calmday
Measurement & Verification of Application
Heat – VS1 = Effect – Real
Heat – VS1 = Effect – Last 30 days
Expected (-16%)
Ref 2015 (-23%)
Expected effect
Expected effect
Energy (365d)
Atemp
Heat–VS1–Power(Mean= 2.2 W/m2) – Outside temperature VS1–GT3–North(Mean= 10.9 °C) – 365 days

9. Skanska Head Office -
Lindhagen
AMF Properties-
Moraset 24
8%
Reason for
Application
Energy Saving
19 %
Heat Consumption
[kWh/m2]
Practical Applications
Improvement of
poor indoor climate
Energy savings
required and improved
indoor climate
Before After
Before After
39.3 31.9
22 19.6

10. Real estate accounts for 40% of UK & Europe's carbon dioxide emissions.
Objectives – Greenhouse gas
emissions should be reduced by
20% by 2020 and 50% by 2050
Target – reduce its greenhouse
gas emissions by 35% by 2020
and 80% by 2050
Every kWh that we don’t use for heating and cooling contributes towards achieving these
objectives.
So far we’ve worked with clients to reduce CO2 emissions by more than 10,000 tonnes per
year. This is equivalent to approximately 40,000 cars driving 12,500 miles each.

11. David Mason Viktor Lindström
U t i l i s i n g y o u r B u i l d i n g A s s e t s t o I m p r o v e I n d o o r
C l i m a t e a n d R e d u c e E n e r g y C o n s u m p t i o n
For more information come
and see us at Stand C10