×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Crude Oil Heat Properties

Crude Oil Heat Properties

Crude Oil Heat Properties

(OP)
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

RE: Crude Oil Heat Properties

zcma907

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

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

Can't help with film coefficient.

D23

RE: Crude Oil Heat Properties

(OP)
D23,

Thanks for the information.

ZCMA907

RE: Crude Oil Heat Properties

(OP)
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

RE: Crude Oil Heat Properties

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

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources