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Lubricant Latent Heat

thread1203-473324

Lubricant Latent Heat

Lubricant Latent Heat

(OP)
Hi,

my client is replacing a compressors oil cooler, for a bigger one.
During HAZOP analisys was defined to design a fire case PSV for oil side...

In my point of view, i should consider the heat imput as a fire case, but calculate capacity as a thermal relief, but, actually, its not the client's ideia!

Does any one has any data on Lubricants? Mainly latent heat?
The oil is a normal ISO VG 46. Its being very difficult to find information, even contacting suppliers...

Thanks

RE: Lubricant Latent Heat

(OP)
Thanks Obturator.
I took a look in cheresources, but the thread is not finished... But... i'm trying to find an S.G. vs Latent heat in some bibliography. I guess i need som old books...

RE: Lubricant Latent Heat

I was hoping that the suggestion on the chersources would help. Maybe your answer is in this old publication file:///C:/Users/mazbo/Desktop/GOVPUB-C13-da7a968e895631e1fad8cf9c2aef73e1.pdf

Per ISO-4126, only the term Safety Valve is used regardless of application or design.

RE: Lubricant Latent Heat

Vaguely recall the API 520 recommendation to use 40Btu/lb as latent heat of vaporisation when it is not known.

RE: Lubricant Latent Heat

(OP)
great!
50, actually! Thanks for the tip!

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