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  2. Pressure tank - Wikipedia

    en.wikipedia.org/wiki/Pressure_tank

    The total volume of the tank is V t. Case 2 is a tank in use, with the air pressure at pressure P (gauge) and a water volume of V. Referring to the diagram on the right, a pressure tank is generally pressurized when empty with a "charging pressure" P c, which is usually about 2 psi below the turn-on pressure P lo (Case 1). The total volume of ...

  3. Diving cylinder - Wikipedia

    en.wikipedia.org/wiki/Diving_cylinder

    Volume of gas at atmospheric pressure = (cylinder volume) x (cylinder pressure) / (atmospheric pressure) In those parts of the world using the metric system the calculation is relatively simple as atmospheric pressure may be approximated as 1 bar, So a 12-litre cylinder at 232 bar would hold almost 12 × 232 / 1 = 2,784 litres (98.3 cu ft) of ...

  4. Pressure–volume diagram - Wikipedia

    en.wikipedia.org/wiki/Pressurevolume_diagram

    To exactly calculate the work done by the system it is necessary to calculate the integral of the pressure with respect to volume. One can often quickly calculate this using the PV diagram as it is simply the area enclosed by the cycle. [citation needed] Note that in some cases specific volume will be plotted on the x-axis instead of volume, in ...

  5. Flow coefficient - Wikipedia

    en.wikipedia.org/wiki/Flow_coefficient

    SG is the specific gravity of the fluid (for water = 1), ΔP is the pressure drop across the valve (expressed in psi). In more practical terms, the flow coefficient C v is the volume (in US gallons) of water at 60 °F (16 °C) that will flow per minute through a valve with a pressure drop of 1 psi (6.9 kPa) across the valve.

  6. Gas cylinder - Wikipedia

    en.wikipedia.org/wiki/Gas_cylinder

    In South Africa, a gas storage cylinder implies a refillable transportable container with a water capacity volume of up to 150 litres. Refillable transportable cylindrical containers from 150 to 3,000 litres water capacity are referred to as tubes. [1] In the United States, "bottled gas" typically refers to liquefied petroleum gas.

  7. Volumetric flow rate - Wikipedia

    en.wikipedia.org/wiki/Volumetric_flow_rate

    The area required to calculate the volumetric flow rate is real or imaginary, flat or curved, either as a cross-sectional area or a surface. The vector area is a combination of the magnitude of the area through which the volume passes through, A , and a unit vector normal to the area, n ^ {\displaystyle {\hat {\mathbf {n} }}} .

  8. Variable-buoyancy pressure vessel - Wikipedia

    en.wikipedia.org/wiki/Variable-buoyancy_pressure...

    A variable-buoyancy pressure vessel system is a type of rigid buoyancy control device for diving systems that retains a constant volume and varies its density by changing the weight (mass) of the contents, either by moving the ambient fluid into and out of a rigid pressure vessel, or by moving a stored liquid between internal and external variable-volume containers.

  9. Diesel fuel tanks in trucks - Wikipedia

    en.wikipedia.org/wiki/Diesel_fuel_tanks_in_trucks

    When calculating volume requirements, one would begin by assessing the available space. Once length, width and height restrictions have been ascertained, the easiest method of determining volume is with the use of a truck tank volume calculator. Although basic mathematics can be applied to calculate the volume of a cylinder, calculating that of ...