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

Heat Loss from Oil Filled Tanks and Pipe Lines

Heat loss from insulated and non insulated sheltered and exposed oil tanks and pipes.

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

Related Topics

  • Heating Systems

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

Related Documents

Search

Search is the most efficient way to navigate the Engineering ToolBox.

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

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 older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

Citation

This page can be cited as

  • The Engineering ToolBox (2003). Heat Loss from Oil Filled Tanks and Pipe Lines. [online] Available at: https://www.engineeringtoolbox.com/heat-loss-oil-tanks-d_285.html [Accessed Day Month Year].

Modify the access date according your visit.

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter

















































6.3.17

.