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  2. Pressure tank - Wikipedia

    en.wikipedia.org/wiki/Pressure_tank

    Case 1 is an empty tank at the charging pressure P c (gauge). 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 ...

  3. Blowout (well drilling) - Wikipedia

    en.wikipedia.org/wiki/Blowout_(well_drilling)

    Should the balance of the drilling mud pressure be incorrect (i.e., the mud pressure gradient is less than the formation pore pressure gradient), then formation fluids (oil, natural gas, and/or water) can begin to flow into the wellbore and up the annulus (the space between the outside of the drill string and the wall of the open hole or the ...

  4. Hydraulic accumulator - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_accumulator

    Water was pumped to a tank at the top of these towers by steam pumps. When dock machinery required hydraulic power, the hydrostatic head of the water's height above ground provided the necessary pressure. These simple accumulators were extremely tall. For instance, Grimsby Dock Tower, built in 1852, is 309 feet (94 m) tall. Because of their ...

  5. DOT-111 tank car - Wikipedia

    en.wikipedia.org/wiki/DOT-111_tank_car

    Two different 111A100W1 specification tank cars, both with 263,000-pound (119,000 kg) gross rail load. On the left is a 27,399-US-gallon (103,716 L; 22,814.4 imp gal) capacity tank car with a load limit of 196,500 pounds (89,100 kg), making it suitable for low specific gravity liquids. On the right, a lighter, smaller 16,640-US-gallon (62,989 L ...

  6. Pressure vessel - Wikipedia

    en.wikipedia.org/wiki/Pressure_vessel

    The ASME definition of a pressure vessel is a container designed to hold gases or liquids at a pressure substantially different from the ambient pressure. [2]The Australian and New Zealand standard "AS/NZS 1200:2000 Pressure equipment" defines a pressure vessel as a vessel subject to internal or external pressure, including connected components and accessories up to the connection to external ...

  7. Pressure-fed engine - Wikipedia

    en.wikipedia.org/wiki/Pressure-fed_engine

    Pressure-fed rocket cycle. Propellant tanks are pressurized to directly supply fuel and oxidizer to the engine, eliminating the need for turbopumps. The pressure-fed engine is a class of rocket engine designs. A separate gas supply, usually helium, pressurizes the propellant tanks to force fuel and oxidizer to the combustion chamber. To ...

  8. Wellhead - Wikipedia

    en.wikipedia.org/wiki/Wellhead

    The primary purpose of a wellhead is to provide the suspension point and pressure seals for the casing strings that run from the bottom of the hole sections to the surface pressure control equipment. [1] While drilling the oil well, surface pressure control is provided by a blowout preventer (BOP).

  9. Hydraulic ram - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_ram

    It takes in water at one "hydraulic head" (pressure) and flow rate, and outputs water at a higher hydraulic head and lower flow rate. The device uses the water hammer effect to develop pressure that allows a portion of the input water that powers the pump to be lifted to a point higher than where the water originally started.

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