12-suede nordiq m. lindgren
DESCRIPTION
NordIQ Göteborg AB 20090618 [email protected] +46 736 006 202 +46 736 88 99 73 [email protected] 1 20 T inne T ute T ute T ute 0 Q rad e 1 3 5 7 9 1 1 1 3 1 5 1 7 1 9 2 1 2 3 h Q mning egenuppvär Q väggtransm Q Tidsvariationer i inomhustemperatur rad Konventionellt Softcontrol Acceptansnivå 15 20 25 T i m °C Balance temperature Tindoor Internal heating 16 18 20 22 24 26 28 Substation InternetTRANSCRIPT
1
Intelligent Sub-stationssave money, energy and
environment
2009-06-18
Matts Lindgren, [email protected]
+46 736 88 99 73
NordIQ Göteborg AB
Dr Peter Gummérus, [email protected]
+46 736 006 202
Tinne
väggtransmQradQ
mningegenuppvärQTute
80
20
Trad °C
Tute-20 0 20
200
0Tute
-20 0 20
radQ kW
Tidsvariationer i inomhustemperatur
15
20
25
h
°C
KonventionelltSoftcontrolAcceptansnivå
Stable temperature = low energy consumption
How can you save energy ?
Easier adjustment = better adjustment
More information = better energy work
Intelligent control = stable temperature
Adjust power signature from statistics
Tindoor vs TAmbient
16
18
20
22
24
26
28
-10 0 10 20
Tindoor
TAmbient
Balance temperature
Internal heating
InternetSub-station
This is District heating
Two independent evaluations
Gröna Vallen, Göteborg120 lgh, 192 kWh/m2
Kaplansg, Gävle47 lgh, 172 kWh/m2
Rävpasset, Gävle, 60 lgh141 kWh/m2
Jökelv, Gävle, 76 lgh156 kWh/m2
Jägarg, Gävle, 28 lgh177 kWh/m2
S Köpmannag, Gävle, 39 lgh112 kWh/m2
Pilot project Swedish Energy AgencyGävle Energi, Familjebostäder, Göteborg Energi,Svensk Fjärrvärme, Fjärrvärmebyrån
Result: -12% average energy consumption12 degrees lowered return temperaturesLower power demand
Comparison conventional vs lNordIQ
New conventional substation 2001. NordIQ substation 2004
Result:Ny konv NordIQ
Energy total +/- 0 -14%
Energy heat +/- 0 -26%Return temp winter -11°C -13°C
Idrifttagning av fjärrvärmecentralerDriftoptimering
Åtgärder år1
EnergyEfficiency-Process
Surveillance and control
AdjustmentsMeasurements
Energyanalysis
Energy-Follow-up
Operation year1Analysis 1 Measures 1
InstallationCommissioning
Substation Radio sensors
Vacum deair unit
Flow adjustment
Åtg Analysis 2
”Det finns ingen energibristbara effektivitetsbrist”
prof Sven Werner
