Geoenergi
Aktuelle projekter og nye tiltag
Lars Hjortshøj Jacobsen
Hvem er Ingeniør Huse
Præsentation af IHE
Referencer
Hvorfor tale om Geoenergi?
Hvorfor tale om Geoenergi
• Sustainable solutions, with low energy composition, low operation costs and relative low ROI
• A trustable source for heat pumps and cooling
• Known and proven technology, which can be standardized
• Possible to establish even in narrow and sparse areas
• Very use full for storing large amounts of thermal energy with a relative small energy loss
Principper og typer
Typer
Shallow:
Groundwater Cooling
Thermal Energy Storage (Low Temperature)
Groundwater Heat Pump
250 m
Low Temperature Geothermal
Heating
High Temperature Heat Storage
+1000 m
Deep
High Temperature Geothermal Heating
dT = 2,5 oC per 100 m
Semi deep
Principper
One way ATES system
Groundwater is pumped from an aquifer
through a well into the system and led to a
heat exchanger setup through a pipeline
Energy (eg. cooling) from the groundwater is
exchanged through the heat exchanger and
used in a building, a process etc.
The now warm groundwater is then led
through a pipeline to an infiltration well and
re-infiltrated into the aquifer.
The direction of the flow can be reversed meaning the warm re-infiltrated groundwater from
the original infiltration well is pumped up again.
The groundwater is led through the heat exchanger setup, where energy from the
groundwater is exchanged.
The groundwater is then led through a
pipeline to the original pumping well and reinfiltrated into the aquifer.
This gives a two way reversible ATES
system for seasonal storage of thermal
energy (cooling and heating)
Aktuelle projekter
EUDP – Pilot hole, Geothermal Energy
• Nødvendig at bore til stor dybde eller lunken vand brugbar?
• Kombination af det bedste fra olie-/vandforsyningsbranchen…
• Ændrede materialevalg
EUDP – High Temperature Energy Storage
• Udnytte skrivekridtet i
undergrunden til
højtemperaturlagring?
• Når oliebranchen kan, så
kan vi måske også?
• Stort potentiale med lille
footprint
• Supplement/alternativt til
damvarmelagre
EUDP – High Temperature Energy Storage
ATES - Bjerringbro Varmeværk
• Ønske om at udvide lagringskapaciteten til 20.000 MWh
• Selvstændig selskabsstruktur
• Ankerkunde til aftag af køling er Grundfos
ATES - Bjerringbro Varmeværk
ATES – Høje Taastrup Fjernvarme
Forerør
0
Geologi
Dybde [m]
Kaliber
0
(mm)
Naturlig Gamma
(cps)
500 0
Fluid Kond
Fluid Temp
(µS/cm) 3000 8
(C)
50 0
Rotation 01 -P
(rpm)
12 0
Rotation 03 +P
0
(rpm)
Flow [Q=16.8m3/h]
(%)
750 -20
120
750
Indstrømningszoner
• Er ATES muligt…?
• Forundersøgelser udviser store vandmængder…
• Udfordringer med højt vandstrømning i grundvandet…
(%)
-5
-10
-15
-20
-19.99
-21.39
-25
-30
-35
-40
-45
-50
-55
100
Forerør
0
Geologi
Dybde [m]
Kaliber
0
(mm)
Naturlig Gamma
(cps)
500 0
Fluid Kond
(µS/cm)
50 0
Fluid Temp
(C)
3000 8
Rotation 01 -P
(rpm)
12 0
Rotation 03 +P
0
(rpm)
Flow [Q=16.8m3/h]
(%)
750 -20
120
750
Indstrømningszoner
ATES – Høje Taastrup Fjernvarme
(%)
-5
-10
-15
-20
-19.99
-21.39
-25
-30
-35
-40
-45
-50
-55
100
Nye tiltag
CTS
Communication
module
Communication
module
ATES – System diagram
CUE
(VFD)
MPC
(Control unit)
Belimoventil
FT
LT
PT
PT
MPC
(Control unit)
Belimoventil
Varmeveksler
PT
CUE
(VFD)
FT
TT
TT
PT
LT
TT
TT
PU
Geo
ventil
Geo
ventil
PU
Hvad skal der tages stilling til…?
Over jord?
Pumpe størrelse?
Tavle størrelse?
Kommunikation?
Terræn skab
Under jord?
7,5kW – 22kW
Standardkomponenter
PE brønd
Fiber/Ethernet
Automatik og styring
Dataudveksling til bygherre?
???
Opstart primo 2017