two approaches of seasonal heat storing | ebbe munster
TRANSCRIPT
Two Approaches of Seasonal Heat Storing:
Pit Heat Storage and
Borehole Thermal Energy Storage
Morten Vang Jensen, PlanEnergi Ebbe Münster, PlanEnergi
1 ICARB 21st October - Ebbe Münster
Agenda
• Borehole thermal energy storage in Braedstrup
• Design and implementation
• Preliminary measuring results
• Pit heat storage in Marstal
• Design and implementation
• Preliminary measuring results
• Key figures and conclusions
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Borehole thermal energy storage in Braedstrup
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Design and implementation, Braedstrup
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Design and implementation, Braedstrup
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Design and implementation, Braedstrup
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Design and implementation, Braedstrup
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Preliminary measuring results, Braedstrup
NDE 511 NDE 521
NDE 531
NDE 541 NDE 551 NDE 561
NDE 571
NDE 581
NDE 516
NDE 586
NDE 522
NDE 523
NDE 524 NDE 525 NDE 526
NDE 532 NDE 533
NDE 534
NDE 535
NDE 536
NDE 542 NDE 543
NDE 544 NDE 545
NDE 546
NDE 552
NDE 553 NDE 554 NDE 555
NDE 556 NDE 562
NDE 563
NDE 564 NDE 565 NDE 566
NDE 572
NDE 573
NDE 574
NDE 575
NDE 576
NDE 582
NDE 583
NDE 584
NDE 585
NDE 512 NDE 513 NDE 514
NDE 515
NDE 503
NDE 504
NDE 505
NDE 502
NDE 501
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Preliminary measuring results, Braedstrup
0°C
10°C
20°C
30°C
40°C
50°C
60°C
02-05 01-06 02-07 01-08 01-09 01-10 01-11 01-12 01-01 31-01 03-03
NDE505
Mean temp. storage
NDE503
NDE501
NDE502
NDE504
NDE 511 NDE 521
NDE 531
NDE 541 NDE 551 NDE 561
NDE 571
NDE 581
NDE 516
NDE 586
NDE 522
NDE 523
NDE 524 NDE 525 NDE 526
NDE 532 NDE 533
NDE 534
NDE 535
NDE 536
NDE 542 NDE 543
NDE 544 NDE 545
NDE 546
NDE 552
NDE 553 NDE 554 NDE 555
NDE 556 NDE 562
NDE 563
NDE 564 NDE 565 NDE 566
NDE 572
NDE 573
NDE 574
NDE 575
NDE 576
NDE 582
NDE 583
NDE 584
NDE 585
NDE 512 NDE 513 NDE 514
NDE 515
NDE 503
NDE 504
NDE 505
NDE 502
NDE 501
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Preliminary measuring results, Braedstrup
0
100
200
300
400
500
02-05 01-06 02-07 01-08 01-09 01-10 01-11 01-12 01-01 31-01 03-03
[MW
h]
Accumulated heat power
Storage Heat Content
Pit heat storage in Marstal
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Design and implementation, Marstal
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Design and implementation, Marstal
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Design and implementation, Marstal
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Design and implementation, Marstal
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Design and implementation, Marstal
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Design and implementation, Marstal
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Design and implementation, Marstal
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Preliminary measuring results, Marstal
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Preliminary measuring results, Marstal
0
2000
4000
6000
8000
10000
12000
Acc
um
ula
ted
en
erg
y /
[GJ]
Date
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Preliminary measuring results, Marstal
0°C
5°C
10°C
15°C
20°C
25°C
30°C
35°C
40°C
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33
Tem
pe
ratu
re
Sensor No.
2013-02-08
2013-03-12
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Key Figures and conclusions Borehole Storage, Braedstrup Pit Heat Storage, Marstal
Size: 19 000 m3 soil
/ 5 000 – 10 000 m3 water eq.
75 000 m3 water
Prize: 240 000 €
(13 €/m3 soil) (24 - 48 €/m3 weq)
2.4 M€ (32 €/m3)
Heat supplied to the storage during first part season:
445 MWh 2 640 MWh
Heat recovered from storage during first part season:
195 MWh (44%) 472 MWh (18%)
Biggest implementation challenges experienced:
Precise soil conditions unpredictable
Very weather dependent
Sponsors: Energinet.dk and EUDP EC 7th framework
Thank you for your attention
www.braedstrup-fjernvarme.dk www.solarmarstal.dk [email protected] cell +45 20626064 www.planenergi.dk +45 9682 0400
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