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Water and Plumbing

Tank Volume Calculation (Cylinder and Rectangle)

Cylindrical and rectangular tank volume; amount of liquid and fill ratio according to level.

With this tool, you can calculate the volume of the fuel tank, feed water tank, condensate tank or water tank and the amount of liquid at a certain level. Especially in horizontal cylindrical tanks, the volume of liquid does not change linearly with the level; the tool calculates this exactly with the circular segment formula.

Formulas

Vertical cylinder: V = π · D² / 4 · h
Horizontal cylinder: V = L · [R² · acos((R − h) / R) − (R − h) · √(2Rh − h²)]

Example

A horizontal tank with an inner diameter of 2 m and a length of 5 m has a total volume of 15.71 m³. There are 9.84 m³ of liquid in it, while the liquid level is 1.2 m; the fill ratio is 62.6% (although the level is 60%). An upright tank with a diameter of 1.5 m and a height of 3 m holds 5.30 m³.

The volume of dished (torispherical) heads is not included; the actual volume is slightly larger in tanks with dished heads. You can consult Çiftel Kazan engineers for your boiler room and installation project.

FAQ

Frequently Asked Questions

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