12-SUEDE NordIQ M. Lindgren

Page 1

NordIQ GĂśteborg AB

Intelligent Sub-stations save money, energy and environment

Dr Peter GummĂŠrus, Development

Matts Lindgren, CEO

gummerus@nordiq.se

matts.lindgren@nordiq.se

+46 736 006 202

+46 736 88 99 73

1 2009-06-18


How can you save energy ? Stable temperature = low energy consumption

Intelligent control = stable temperature Tidsvariationer i inomhustemperatur °C 25

23

21

19

17

15

13

9

11

7

5

Ti m

3

15 e

More information = better energy work

Konventionellt Softcontrol Acceptansnivå

20

1

Easier adjustment = better adjustment

h

Trad °C 80 20 -20

0

Q rad kW

20 T ute Q rad

200 0

-20

Q egenuppvärmning

0

20 T ute

Tinne Q väggtransm

Tute


Adjust power signature from statistics Tindoor vs TAmbient

Tindoor 28

26

24

22

Internal heating 20

18

16 -10

0

10

20

Balance temperature

TAmbient


This is District heating Sub-station

Internet


Two independent evaluations Pilot project Swedish Energy Agency Gävle Energi, Familjebostäder, Göteborg Energi, Svensk Fjärrvärme, Fjärrvärmebyrån

Jägarg, Gävle, 28 lghS Köpmannag, Gävle, 39 lgh Jökelv, Gävle, 76 lgh 177 kWh/m2 112 kWh/m2 156 kWh/m2

Kaplansg, Gävle Rävpasset, Gävle, 60 lgh 47 lgh, 172 kWh/m2 141 kWh/m2

Gröna Vallen, Göteborg 120 lgh, 192 kWh/m2

Result: -12% average energy consumption 12 degrees lowered return temperatures Lower power demand

Comparison conventional vs lNordIQ New conventional substation 2001. NordIQ substation 2004 Result: Energy total

Ny konv +/- 0

NordIQ -14%

Energy heat Return temp winter

+/- 0 -11°C

-26% -13°C


EnergyEfficiency-Process Energy analysis

Analysis 1

Installation Commissioning

Measures 1

Surveillance and control Adjustments Measurements

Operation year1

EnergyFollow-up

Analysis 2

Substation Radio sensors Vacum deair unit

Åtgärder år1 Åtg

Flow adjustment

Driftoptimering Idrifttagning av fjärrvärmecentraler


�Det finns ingen energibrist bara effektivitetsbrist� prof Sven Werner



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