VGB POWERTECH 7 (2021) - International Journal for Generation and Storage of Electricity and Heat
VGB PowerTech - International Journal for Generation and Storage of Electricity and Heat. Issue 7 (2021). Technical Journal of the VGB PowerTech Association. Energy is us! Optimisation of power plants. Thermal waste utilisation.
VGB PowerTech - International Journal for Generation and Storage of Electricity and Heat. Issue 7 (2021).
Technical Journal of the VGB PowerTech Association. Energy is us!
Optimisation of power plants. Thermal waste utilisation.
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<strong>VGB</strong> PowerTech 7 l <strong>2021</strong><br />
Members´News<br />
EVN: Moderne Krananlagen in der Abfallverwertungsanlage Dürnrohr schnappen wieder kräftig<br />
zu. Fotocredit: © EVN Wurnig<br />
Arbeiten werden von der Krankabine über<br />
Kameras gesteuert und überwacht. Um einen<br />
reibungslosen Ablauf weiter zu garantieren,<br />
wurde hier bei der Programmierung<br />
in ein neues Kran-Management System investiert.<br />
Jährlich 500.000 Tonnen Müll l<strong>and</strong>en im<br />
Müllbunker der Abfallverwertungsanlage,<br />
wo wieder eine Krananlage mit drei Müllkränen<br />
darauf wartet die Abkippstellen frei<br />
zu halten, den Müll zu stapeln und zu mischen<br />
und schließlich auch in den Aufgabetrichter<br />
der Feuerung zu befördern. Ein<br />
Müllkran mit der Traglast von 17 Tonnen<br />
erhielt bei der aktuellen Revision wieder<br />
neue Schleppkabel und Klemmkästen um<br />
wieder kräftig zugreifen zu können, während<br />
seine beiden Kollegen Müllkran 1 und<br />
2 weiterhin einsatzfähig blieben.<br />
Nach dem Verbrennungsvorgang des<br />
Mülls bleibt die sogenannte Schlacke übrig,<br />
die nun aus der Abfallverwertungsanlage<br />
raus befördert werden möchte. Hier<br />
greift der Schlackekran mit einer Traglast<br />
von 12 Tonnen noch einmal ordentlich zu.<br />
Er wurde mit einem neuen Rahmen,<br />
Seiltrommel und Lager sowie Hub-Getriebe<br />
bestückt.<br />
„Bei jährlich 130.000 Tonnen beförderter<br />
Schlacke vom Schlackebunker auf Bahnwaggons<br />
war diese Erneuerung sicher eine<br />
Art Kur für den seit 2003 arbeitenden<br />
Schlackekran“, freut sich EVN Sprecher<br />
Stefan Zach über die rasch umgesetzten<br />
Modernisierungsarbeiten aller Krananlagen<br />
in weniger als 10 Tagen.<br />
EVN Abfallverwertung NÖ:<br />
Aus Müll wird Energie<br />
Die Thermische Abfallverwertungsanlage<br />
ist ein wichtiger Eckpfeiler des Energieknotens<br />
Dürnrohr. Das Energiepotenzial der<br />
Anlage beträgt 210 MW. Aus dem angelieferten<br />
Abfall entsteht Dampf, welcher zur<br />
Erzeugung von Strom sowie Fernwärme für<br />
die Gemeinde Zwentendorf und zwei Drittel<br />
der L<strong>and</strong>eshauptstadt St. Pölten verwendet<br />
wird. Zusätzlich wird die AGRANA Stärke<br />
GmbH mit Prozessdampf beliefert. Durch<br />
Energie aus Abfall werden dadurch fossile<br />
Energieträger eingespart. Ressourcenschonung,<br />
Verminderung von Emissionen und<br />
des Treibhauseffekts, eine erhöhte Luftqualität<br />
in der Region und eine Verbesserung<br />
der CO 2 -Bilanz sind das Ergebnis.<br />
LL<br />
www.evn.at (212251523)<br />
Helsinki to close the Hanasaari<br />
power plant almost two years<br />
ahead <strong>of</strong> schedule<br />
(helen) The Hanasaari coal-fired power<br />
plant will cease operations by 1 April 2023.<br />
The decision has a significant impact on the<br />
carbon footprint <strong>of</strong> Helsinki <strong>and</strong> the entire<br />
country.<br />
“Coal burning in Hanasaari in Helsinki<br />
will come to an end almost two years ahead<br />
<strong>of</strong> the original plan, which will have significant<br />
positive climate impacts. The Hanasaari<br />
power plant is the third-largest source<br />
<strong>of</strong> industrial emissions in Finl<strong>and</strong>, accounting<br />
<strong>for</strong> two per cent <strong>of</strong> total emissions <strong>of</strong><br />
our country. The total emissions <strong>of</strong> Helsinki<br />
will fall by about 20 per cent as a result<br />
<strong>of</strong> the decision,” says Mayor <strong>of</strong> Helsinki Jan<br />
Vapaavuori.<br />
The decision to bring <strong>for</strong>ward the closing<br />
<strong>of</strong> Hanasaari is economically viable <strong>for</strong> Helen,<br />
<strong>for</strong> example, due to the increased price<br />
<strong>of</strong> emission allowances. According to the<br />
original plan, the closing <strong>of</strong> the Hanasaari<br />
power plant would have taken place at the<br />
end <strong>of</strong> 2024. In accordance with the new<br />
schedule, the Hanasaari power plant will<br />
be transferred <strong>for</strong> reserve use in the heating<br />
season <strong>of</strong> 2022–2023 when the bioenergy<br />
heating plant to be constructed in Vuosaari<br />
starts production. After that, the<br />
Hanasaari power plant will be closed down<br />
permanently.<br />
In this first phase, the production <strong>of</strong> Hanasaari<br />
will be replaced with heat pumps, heat<br />
storage, biomass, <strong>and</strong> heat trade.<br />
“It is possible to close the power plant earlier<br />
than planned because over the past few<br />
years we have done a lot <strong>of</strong> work <strong>and</strong> made<br />
significant investments in the production <strong>of</strong><br />
renewable <strong>and</strong> emission-free heat <strong>and</strong> power<br />
production. Helen has been a <strong>for</strong>erunner<br />
<strong>of</strong> new energy solutions throughout its history,<br />
<strong>and</strong> this decision is also a strong indicator<br />
<strong>of</strong> it. Helen has the expertise <strong>and</strong> the will<br />
to have an impact on the energy transition<br />
<strong>and</strong> to find solutions <strong>for</strong> the mitigation <strong>of</strong><br />
climate change. We have reserved a total <strong>of</strong><br />
one billion euros <strong>for</strong> carbon-neutral investments,<br />
<strong>and</strong> one-third <strong>of</strong> the investment decisions<br />
have already been made,” says Helen’s<br />
CEO Juha-Pekka Weckström.<br />
As a result <strong>of</strong> the decision to bring <strong>for</strong>ward<br />
the closing <strong>of</strong> the plant, the Hanasaari<br />
coal store will disappear from the<br />
streetscape <strong>and</strong> the area will be released in<br />
stages <strong>for</strong> the use <strong>of</strong> Helsinki residents.<br />
“In future, the released areas will <strong>for</strong>m a<br />
new focal point <strong>for</strong> the eastern part <strong>of</strong> the<br />
city centre. As a result <strong>of</strong> the removal <strong>of</strong><br />
power plant operations <strong>and</strong> the coal heap,<br />
unique urban space <strong>and</strong> shore areas will be<br />
freed <strong>for</strong> services, operations <strong>and</strong> leisure-time<br />
facilities <strong>for</strong> a vibrant everyday<br />
urban life <strong>for</strong> Helsinki residents. The Hanasaari<br />
area also has a great connection with<br />
the Suvilahti <strong>and</strong> Teurastamo areas <strong>and</strong>,<br />
together, they will have a huge potential to<br />
develop into a new urban cultural district,”<br />
the Mayor, Mr Vapaavuori envisages.<br />
Carbon-neutral Helsinki 2035<br />
The City <strong>of</strong> Helsinki <strong>and</strong> Helen have committed<br />
to carbon neutrality by year 2035.<br />
This target will be achieved in stages.<br />
The City Council decided on closing the<br />
Hanasaari power plant already in December<br />
2015, at which time the preparations<br />
were launched. Since then, Helen’s employees<br />
<strong>and</strong> organisation have been adapting<br />
to the changes in energy production,<br />
<strong>and</strong> these measures still continue. After the<br />
Hanasaari power plant has been closed<br />
down <strong>and</strong> its production has ceased, Helen<br />
will phase out the use <strong>of</strong> coal in full by<br />
2029 at the latest, by which time coal burning<br />
will also come to an end in the Salmisaari<br />
power plant.<br />
Alternative energy solutions <strong>of</strong> the future<br />
have also been sought with new <strong>and</strong> innovative<br />
methods. The City <strong>of</strong> Helsinki requested<br />
sustainable solutions <strong>for</strong> the heating<br />
<strong>of</strong> Helsinki from energy experts from<br />
throughout the world in the Helsinki Energy<br />
Challenge competition. The objective <strong>of</strong><br />
solutions sought with the challenge competition<br />
is to completely phase out combustion-based<br />
energy production in the next<br />
few years, <strong>for</strong> example, with alternative<br />
solutions in Salmisaari.<br />
LL<br />
www.helen.fi (212251531)<br />
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