Heating elements 300°C in lubricating oil.

thomasvanderschuerenLevel 2 - 51 to 100 posts

Hi,

I have a 6.000l oil reservoir with 18 x 1000W electrical heating elements in the reservoir. The temperature of the elements is 300°C. I think this temperature is much to high and we will change the way of heating the oil (Shell Omala 220 SP2).

Oil analysis: PQ index = 2 (low) and spectrometical analysis (ICP): 1 ppm Fe. Viscosity = 86 cSt!! due to thermical cracking 300°C I think.
Analysis of the hard material around the heating elements (photo): 15.000ppm Fe, PQ index = 1170.

Is there a reason why the ferro magnetic elements like iron agglomerate around these elements?

Kind regards,

Gilles

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4/24/136:10 AM

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