Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

This is an AMP page - Open full page! for all features.

Pipes Submerged in Oil or Fat - Heat Emission

Heat emission from steam or water heating pipes submerged in oil or fat - forced and natural circulation.

Sponsored Links

The viscosity of a fluid has considerable influence on the heat transfered from a submerged heating pipe. Be aware that the viscosity of a fluid is highly dependent on the temperature.

Heat emission from steam pipes submerged in oil baths are indicated below:

ApplicationFluidHeat Emission from coil surface
 (Btu/ft2 hr oF)(W/m2 oC)
Steam coil with medium steam pressure and natural convection of oil Light Oils 30 170
Heavy Oils 15 - 20 85 - 115
Fats 5 - 10 30 - 60
Steam coil with medium pressure and forced convection of oil Light Oils 100 570
Heavy Oils 60 340
Fats 30 170
  • Light oils - 220 SSU at 100 oF
  • Heavy oils - 1100 SSU at 100 oF
  • Fats - 3833 SSU at 100 oF

Example - Heat Emission from a 2" Coil in a Fat Tank

A 10 m long 2" inch stainless steel steam coil heats a tank with fat. The steam pressure is 1 bar and the temperature in the coil is 120 oC. The temperature in the tank is 40 oC. The convection is natural with heat emission 50 W/m2oC.

The outside diameter of the pipe is 60.3 mm and the external surface of the pipe pr. m length of pipe can be calculated as

As = 2 π ((0.063 m) / 2) (1 m)

    = 0.2 m2/m pipe

The heat emission from the coil as whole can be calculated as

Q = (10 m) (0.2 m2/m pipe) (50 W/m2oC) ((120 oC) - (40 oC))

   = 8000 W

   = 8 kW

Sponsored Links

Related Topics

Related Documents

Sponsored Links

Share

Search Engineering ToolBox

  • the most efficient way to navigate the Engineering ToolBox!

SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.

Topics

Unit Converters

Temperature

oC
oF


Load Calculator!

Length

m
km
in
ft
yards
miles
naut miles


Load Calculator!

Area

m2
km2
in2
ft2
miles2
acres


Load Calculator!

Volume

m3
liters
in3
ft3
us gal


Load Calculator!

Weight

kgf
N
lbf


Load Calculator!

Velocity

m/s
km/h
ft/min
ft/s
mph
knots


Load Calculator!

Pressure

Pa (N/m2)
bar
mm H2O
kg/cm2
psi
inches H2O


Load Calculator!

Flow

m3/s
m3/h
US gpm
cfm


Load Calculator!

3 10

This website use cookies. By continuing to browse you are agreeing to our use of cookies! Learn more