Calculate volume of a horizontal cylindrical tank

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Calculating the volume of a partially filled horizontal cylindrical tank based on a liquid level is not that straight forward as when having a vertical cylindrical tank. The YDOC data loggers are provided with up to 8 calculation channels, which can a/o be used to calculate the volume of a horizontal cylindrical tank based on a measured liquid level.

A complete equation for measuring the volume of a horizontal cylindrical tank

The equation to calculate the volume in m³ is:

:TL*(PI*pow(:TR;2)-pow(:TR;2)*acos((:TR-(2*:TR-:LEV))/:TR)+(:TR-(2*:TR-:LEV))*sqrt(2*:TR*:LEV-pow(:LEV;2)))

Where:

• :TR is the tank radius in m (You should substitute :TR with the radius of your tank or alternatively use another calculation channel returning the radius).
• :TL is the tank length in m (You should substitute :TL with the length of your tank).
• :LEV is the measured liquid height in m (e.g. measured with a liquid pressure probe).

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