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  2. Cascade filling system - Wikipedia

    en.wikipedia.org/wiki/Cascade_filling_system

    P 2 and V 2 the initial pressure and volume of the other cylinder and P 3 is the equilibrium pressure. An example could be a 100-litre (internal volume) cylinder (V 1) pressurised to 200 bar (P 1) filling a 10-litre (internal volume) cylinder (V 2) which was unpressurised (P 2 = 1 bar) (resulting in both cylinder equalising to approximately 180 ...

  3. Gas blending - Wikipedia

    en.wikipedia.org/wiki/Gas_blending

    Partial pressure gas blending equipment for scuba diving A breathing gas is a mixture of gaseous chemical elements and compounds used for respiration . The essential component for any breathing gas is a partial pressure of oxygen of between roughly 0.16 and 1.60 bar at the ambient pressure .

  4. Kitchen ventilation - Wikipedia

    en.wikipedia.org/wiki/Kitchen_ventilation

    The design of an effective kitchen ventilation system is determined by: The kitchen's workload; The amount, type and power of cooking equipment; The kitchen's layout and shape; The number of kitchen staff; The need for easy cleaning and maintenance; Energy efficiency; Hot air from cooking is usually vented externally through a chimney system.

  5. ASHRAE Handbook - Wikipedia

    en.wikipedia.org/wiki/ASHRAE_Handbook

    The ASHRAE Handbook is the four-volume flagship publication of the nonprofit technical organization ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers [a]). This Handbook is considered the most comprehensive and authoritative repository of practical knowledge on the various topics that form the field of heating ...

  6. Compressed air dryer - Wikipedia

    en.wikipedia.org/wiki/Compressed_air_dryer

    Compressed Air Handbook-Sixth Edition, Compressed Air and Gas Institute, 2003 ISBN 0974040002; Improving Compressed System Performance-Third Edition, U.S. Department of Energy, 2017; Best Practices for Compressed Air Systems Manual-Second Edition, Compressed Air Challenge, 2007 ISBN 978-0615386829

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  8. Gas blending for scuba diving - Wikipedia

    en.wikipedia.org/wiki/Gas_blending_for_scuba_diving

    Mixing by continuous blending: regulateed flow of oxygen is fed into a static mixer with air, analysed, and fed to the compressor inlet. The compressor and particularly the compressor oil, must be suitable for this service. If the oxygen fraction is less than 40%, some countries do not require the cylinder and valve to be cleaned for oxygen ...

  9. Variable air volume - Wikipedia

    en.wikipedia.org/wiki/Variable_air_volume

    The fan maintains a constant static pressure in the discharge duct regardless of the position of the VAV box. Therefore, as the box closes, the fan slows down or restricts the amount of air going into the supply duct. As the box opens, the fan speeds up and allows more air flow into the duct, maintaining a constant static pressure. [11]