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"NFC - not from concentrate"
Monitoring the world´s first fresh juice tanker
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Two things are very important for transporting or storing fresh orange juice
in high grade steel tanks. For one thing, the juice must be kept at an exactly defined low
temperature.
For another, the tank must be absolutely germ-free and may therefore have no contact at all with
air or oxygen. This is guaranteed by blowing in nitrogen (N2). Both the
temperature and the N2 pressure must be measured continuously (every
second) and regulated.
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Cooling, pressure and temperature regulation and
filling level measurement all take place fully automatically on board the
"Orange sky", monitored by two WinCC- servers in a redundancy
architecture.
The former grain freighter "May Oldendorff" was converted into a
juice tanker at Lloyd´s shipyard in Bremerhaven and is now
carrying the valuable juice from Santos in Brazil to US harbors at the
East-coast. The juice comes from the world´s biggest producer of citrus
fruits Cutrale, Brazil.
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