How the world's most advanced flood barrier will save Venice
Climate change is making the threat to Venice from rising seawater ever more urgent. Alfa Laval heat exchangers play an important role in the €5.5bn flood barrier being built to protect this iconic city.DATA 2018-11-15
It was in 1966 that the sea level around Venice rose two metres, causing millions of dollars in damage and destroying priceless artwork. Over the next 40 years climate change, rising sea levels, and a sinking city have increased the frequency of acqua alta (high water) and brought urgency to the need for a solution.
That solution is Mose, an innovative flood barrier project featuring a system of 78 mobile gates being constructed at the three openings of the barrier island separating the Venice lagoon from the Adriatic. Under normal circumstances they will lie flat under the water, but when needed, they will be raised by pumping them full of compressed cooled air from Alfa Laval heat exchangers, to prevent rising sea levels from entering the lagoon.
FACTS - Mose: how it works
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Mose is the most innovative system of its kind. It is very flexible at all tide levels. Its operation is quiet. It is respectful of marine life and the environment.”
MONICA AMBROSINI, spokesperson for CONSORZIO VENEZIA NUOVA
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È vero. In realtà facciamo la differenza. Le nostre innovazioni contribuiscono per ridurre le emissioni di CO2 in Russia per assicurarsi che i pomodori possano crescere nel deserto dell'Australia, aumentando l'uso di energia solare e pompando in sicurezza petrolio da navi affondate.
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PRODUCT - Alfa Laval Alfa-V VDD
- Reliable performance, Eurovent certified
- Excellent sound characteristics
- Favourable capacity/footprint ratio
- Available with easily cleanable industrial fins
- Energy efficient - low total cost of ownership
FACTS - The Mose project in figures
1 lock for big ships (at Malamocco)
2 refuge harbours (at Lido and Chioggia)
3 metre-high tide can be withstood
4 mobile barriers
15 minutes average time to close the barriers
30 minutes to open (raise) the barriers
78 mobile barriers in total
1,000 workers involved
2018 estimated year of completion
€5.5bn estimated total cost (as of March 2016)
We worked together from the start to adapt our standard models to their specific requirements, suggesting improvements in terms of materials and new technologies.”
PAOLO ZAPPAROLI, PRODUCT MANAGER AT ALFA LAVAL, ITALY