Crude Oil Heat Properties Properties, Heat, Oil, Crude

gulfdril

Hi,

I'm trying to heat the crude oil up from 60 deg. F to 100 deg. F in a riser through a hot water shell exchanger. Can someone help me to find the heat properties of a typical crude oil such as specific heat and film coefficient?

Thanks,
Charles

why3daac

zcma907

c = (.0388+.00045t) / (sqrt Specific Gravity)

where:
c = specific heat
t = Temp in degree F

Can't help with film coefficient.

D23

yecmbnem

zcma907

You may check this site to see if it takes care of the file coefficient.


http://www.bre.com/technicalpapers/technicalpaper.asp?articlenumber=63


D23

tazgulf9

D23,

Thanks for the information.

ZCMA907

nhwmnzf

Dear D23,

I'm trying to use your formula to calculate the specific heat of the API 24 crude at 80 deg. F as:

S.G. = .91
T = 80 deg. F

C = (.0388 + .00045 * 80)/(.91)^.5
??= .07488/(.91)^.5
??= .0785

It seems that this number little off from what I expected.

Also, can you let me know where this formula come from so I can put the reference on my claculation.

Thanks,
zcma907

mksaferg

zcma907

I owe you an apology, the formula should be

(0.388+.00045*t) / (Sqrt spgr)

I had a decimal point off.

Your c should be 0.444480624 for the oil

I actually don’t remember where I found the formula originally.??The only source I have for it is an old delta heat file I wrote for pumps.

D23