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Cold and heat storage in downtown Berlin; Kaelte und Waermespeicherung im Zentrum Berlins

Abstract

The concept of energy supply for the seat of the German Parliament is based on self-sufficiency by using motor-driven district heating power stations. Esterified vegetable oil (bio-diesel) serves as fuel. These motor-driven power stations are operated depending on the amount of power required actually. The heat energy which is released when generating power at the temperature level >100 C - which is favourable for heating purposes - serves directly for heat supply or the driving a refrigerating machine/heat pump for the supply of cooling energy in summer and low-temperature heat in winter. As the demand on heat and power supply often will not be parallel, there will be a temporary surplus of heat offered by the motor-driven power station, and at other times it will be deficient. That is why surplus heat from the motor-driven power station is stored in a deep aquifer heat reservoir for recovery and utilisation for heating in winter. By using a geothermal saline water reservoir, the waste heat from the motor-driven power station can be fed into it at a temperature level ranging from 60.. 80 C and recovered and utilised at a temperature level ranging from 60.. 20 C. A shallow groundwater aquifer cold  More>>
Authors:
Seibt, P; Brandt, W; Kabus, F; Moellmann, G; Poppei, J [1] 
  1. Geothermie Neubrandenburg GmbH (Germany)
Publication Date:
Dec 01, 1997
Product Type:
Conference
Report Number:
ETDE-DE-597; CONF-9609413-
Reference Number:
SCA: 150904; 320106; PA: DE-97:0GH977; EDB-98:028014; SN: 97001883258
Resource Relation:
Conference: 4. meeting on geothermics - 7. experts meeting of Schweizerische Vereinigung fuer Geothermie (SVG): Geothermics - energy for the future, 4. Geothermische Fachtagung - 7. Fachtagung der Schweizerischen Vereinigung fuer Geothermie (SVG): Geothermie - Energie der Zukunft, Konstanz (Germany), 18-20 Sep 1996; Other Information: PBD: 1997; Related Information: Is Part Of Geothermics - energy for the future. Proceedings; PB: 499 p.; Geothermie - Energie der Zukunft. Tagungsband
Subject:
15 GEOTHERMAL ENERGY; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; HEAT PUMPS; SPACE HEATING; AIR CONDITIONING; GOVERNMENT BUILDINGS; FEDERAL REPUBLIC OF GERMANY; WASTE HEAT; UNDERGROUND STORAGE; AQUIFERS; DIESEL ENGINES; THERMAL POWER PLANTS; GEOTHERMAL GRADIENTS; CROSS SECTIONS; DATA; GEOTHERMAL HEATING SYSTEMS
OSTI ID:
573603
Country of Origin:
Germany
Language:
German
Other Identifying Numbers:
Other: ON: DE98714933; ISBN 3-932570-09-X; TRN: DE97GH977
Availability:
OSTI as DE98714933
Submitting Site:
DE
Size:
pp. 306-316
Announcement Date:

Citation Formats

Seibt, P, Brandt, W, Kabus, F, Moellmann, G, and Poppei, J. Cold and heat storage in downtown Berlin; Kaelte und Waermespeicherung im Zentrum Berlins. Germany: N. p., 1997. Web.
Seibt, P, Brandt, W, Kabus, F, Moellmann, G, & Poppei, J. Cold and heat storage in downtown Berlin; Kaelte und Waermespeicherung im Zentrum Berlins. Germany.
Seibt, P, Brandt, W, Kabus, F, Moellmann, G, and Poppei, J. 1997. "Cold and heat storage in downtown Berlin; Kaelte und Waermespeicherung im Zentrum Berlins." Germany.
@misc{etde_573603,
title = {Cold and heat storage in downtown Berlin; Kaelte und Waermespeicherung im Zentrum Berlins}
author = {Seibt, P, Brandt, W, Kabus, F, Moellmann, G, and Poppei, J}
abstractNote = {The concept of energy supply for the seat of the German Parliament is based on self-sufficiency by using motor-driven district heating power stations. Esterified vegetable oil (bio-diesel) serves as fuel. These motor-driven power stations are operated depending on the amount of power required actually. The heat energy which is released when generating power at the temperature level >100 C - which is favourable for heating purposes - serves directly for heat supply or the driving a refrigerating machine/heat pump for the supply of cooling energy in summer and low-temperature heat in winter. As the demand on heat and power supply often will not be parallel, there will be a temporary surplus of heat offered by the motor-driven power station, and at other times it will be deficient. That is why surplus heat from the motor-driven power station is stored in a deep aquifer heat reservoir for recovery and utilisation for heating in winter. By using a geothermal saline water reservoir, the waste heat from the motor-driven power station can be fed into it at a temperature level ranging from 60.. 80 C and recovered and utilised at a temperature level ranging from 60.. 20 C. A shallow groundwater aquifer cold storing reservoir serves for cooling: the cold stored in winter is supplied in summer to the cooling equipment of the building by direct cooling with the cold water form the aquifer (heat exchange) at a temperature level of 14/15 C. The cooling demand in case of air dehumidification at a temperature level of 6/12 C is covered by a cooling machine which is also cooled with the cold water from the aquifer. As cooling machine/heat pump an environment-friendly, CFC-free absorption machine is used working on a combination of water and lithium bromide. The machine is driven by the waste heat from the motor-driven power plant. (orig.) [Deutsch] Im Zentrum des Systems der Energieversorgung der Parlamentsbauten steht die autarke Energiebereitstellung durch den Einsatz von Motorheizkraftwerken (MHKW). Als Treibstoff dient verestertes Pflanzenoel (Bio-Diesel). Die MHKW werden entsprechend dem jeweils abgeforderten Strombedarf gefahren. Die bei der Stromerzeugung anfallende Waermeenergie auf dem fuer Heizzwecke guenstigen Temperaturniveau >100 C dient direkt der Waermeversorgung bzw. dem Antrieb einer Kaeltemaschine/Waermepumpe zur Bereitstellung von Niedertemperatur-Kuehlenergie im Sommer und Niedertemperatur-Waerme im Winter. Da der jeweilige Bedarf an Waerme und Strom oftmals nicht gleichlaufend ist, kommt es zeitweise zu einem Ueberschuss des Waermeangebots auf den MHKW und zu anderen Zeiten wiederum zu einer Deckungsluecke. Ueberschuessige MHKW-Abwaerme wird darum in einem Waermespeicher zur Rueckgewinnung und Nutzung bei Heizbedarf im Winter gespeichert. Dazu wird erstmalig ein etwa 300 m tiefer salzfuehrender Aquifer genutzt. Die MHKW-Abwaerme wird auf einem Temperaturniveau von 60... 70 C in diesen Waermespeicher eingeleitet und auf einem Temperaturniveau von 60... 20 C zurueckgewonnen und genutzt. Ein flacher Aquifer-Kaeltespeicher in einer Tiefe von ca. 60 m dient der Gebaeudekuehlung. Die im Winter gespeicherte Umgebungskaelte versorgt im Sommer auf direktem Wege Kaelteabnehmer des Gebaeudes. Beide Speicher sind durch eine ueber 100 m maechtige Tonschicht voneinander getrennt. Der Kuehlungsbedarf bei Luftentfeuchtung auf einem Temperaturniveau von 6/12 C wird ueber eine Kaeltemaschine realisiert, die ebenfalls mit dem Aquifer-Kaltwasser gekuehlt wird. (orig.)}
place = {Germany}
year = {1997}
month = {Dec}
}