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.

Heat Loss from Oil Filled Tanks and Pipe Lines

Sponsored Links

Heat loss from the oil in a storage tank or pipe line can be roughly estimated from the values below.

Heat Loss from Oil Filled Tanks and Pipe Lines
ApplicationTemperature difference between Oil and ambient Air
(oF)

Heat Transfer Rate - α - (Btu/(hr ft2 oF))
Without InsulationInsulated
Sheltered tanks   - 50 1.2 0.3
50 - 80 1.3 0.33
80 - 100 1.4 0.35
Exposed tanks   - 50 1.4 0.35
50 - 80 1.5 0.38
80 - 100 1.6 0.4
Tank in Pit All Temperatures 1.2 -
Sheltered Pipe Line   - 80 1.5 0.4
80 - 260 2.3 0.58
Exposed Pipe Line   - 80 1.8 0.45
80 - 260 2.75 0.7
  • 1 Btu/(hr ft2 oF) = 5.678 W/(m2 oC) = 4.882 kcal/(h m2 oC)
  • T(oC) = 5/9[T(oF) - 32]

The total heat loss from an application can be calculated as:

Q = α A dt                                             (1)

where

Q = heat loss (W, Btu/hr)

α = heat transfer rate (W/(m2 oC), Btu/hr ft2 oF)

A = area (m2, ft2)

dt = temperature difference (oC, oF)

Example - Heat loss from an insulated exposed tank

An insulated exposed tank with outside area of 1000 ft2 contains oil at temperature 90oF. The surrounding temperature is 32oF. With temperature difference 68oF (90oF - 32oF) - the Heat Transfer Rate (α) from the table above is aprox. 0.4 Btu/hr ft2 oF.

The heat loss from the oil tank can be estimated to:

Q = (0.4 Btu/hr ft2 oF) (1000 ft2) ((90 oF) - (32 oF))

    = 23200 Btu/hr

Sponsored Links

Related Topics

Heating Systems

Design of heating systems - capacities and design of boilers, pipelines, heat exchangers, expansion systems and more.

Related Documents

Content in Horizontal - or Sloped - Cylindrical Tanks or Pipes

Volume of partly filled horizontal or sloped cylindrical tanks or pipes - online calculator.

Heat Loss from Open Water Tanks

Due to evaporation the heat loss from an open water tank like a swimming pool may be considerable.

Oil Filled Tanks - Heat Loss

Heat loss from insulated and uninsulated, sheltered and exposed heated oil tanks.

Oil Pipes - Head Loss

Head or pressure loss due to friction in oil pipes - various viscosity and laminar flow.

Oil Pipes - Heat Loss

Heat loss in W/mK and Btu/hr ft degF from oil tubes ranging temperatures 10 - 38 degC (50 - 100 degF).

Oil Pipes - Recommended Flow Velocities

Oil pipes flow velocities should be kept within certain limits.

Pipes - Insulated Heat Loss Diagrams

Heat loss (W/m) from 1/2 to 6 inches insulated pipesĀ - ranging insulation thickness 10 to 80 mm and temperature differences 20 to 180 degC.

Pipes - Insulated Heat Loss Diagrams

Heat loss (W/ft) diagrams for 1/2 to 6 inches insulated pipesĀ - ranging insulation thickness 0.5 to 4 inches and temperature differences 50 to 350 degF.

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.

Pipes Submerged in Water - Heat Emission

Heat emision from steam or water heating pipes submerged in water - assisted (forced) or natural circulation.

Steam Tracing Pipe Lines

Steam tracing of pipe lines can be done to maintain appropriate product temperatures.

Sponsored Links

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.