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  2. York gas field - Wikipedia

    en.wikipedia.org/wiki/York_gas_field

    The York field extends over UK Blocks 47/2a, 47/3a, 47/3d and 47/3e. The field was discovered in 1993 by well 47/02-1 drilled by the Noble Julie Robinson. The reservoir has reserves of 106 billion cubic feet [1] or 3 billion cubic metres. [2] Centrica owned and developed the York gas field, now owned and operated by Spirit Energy. [3]

  3. Variable air volume - Wikipedia

    en.wikipedia.org/wiki/Variable_air_volume

    Air volume regulator. Variable air volume (VAV) is a type of heating, ventilating, and/or air-conditioning system.Unlike constant air volume (CAV) systems, which supply a constant airflow at a variable temperature, VAV systems vary the airflow at a constant or varying temperature.

  4. Thermal equilibrium - Wikipedia

    en.wikipedia.org/wiki/Thermal_equilibrium

    A system prepared as a mixture of petrol vapour and air can be ignited by a spark and produce carbon dioxide and water; if this happens in an isolated system, it will increase the temperature of the system, and during the increase, the system is not in thermal equilibrium; but eventually, the system will settle to a uniform temperature.

  5. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    PTAC systems may be adapted to provide heating in cold weather, either directly by using an electric strip, gas, or other heaters, or by reversing the refrigerant flow to heat the interior and draw heat from the exterior air, converting the air conditioner into a heat pump. They may be installed in a wall opening with the help of a special ...

  6. Dissolved gas analysis - Wikipedia

    en.wikipedia.org/wiki/Dissolved_gas_analysis

    Dissolved gas analysis (DGA) is an examination of electrical transformer oil contaminants. [1] Insulating materials within electrical equipment liberate gases as they slowly break down over time. The composition and distribution of these dissolved gases are indicators of the effects of deterioration, such as pyrolysis or partial discharge , and ...

  7. Isochoric process - Wikipedia

    en.wikipedia.org/wiki/Isochoric_process

    An isochoric process is exemplified by the heating or the cooling of the contents of a sealed, inelastic container: The thermodynamic process is the addition or removal of heat; the isolation of the contents of the container establishes the closed system; and the inability of the container to deform imposes the constant-volume condition.

  8. Air cycle machine - Wikipedia

    en.wikipedia.org/wiki/Air_cycle_machine

    An air cycle machine (ACM) is the refrigeration unit of the environmental control system (ECS) used in pressurized gas turbine-powered aircraft. Normally an aircraft has two or three of these ACM. Each ACM and its components are often referred as an air conditioning pack.

  9. Gas-pak - Wikipedia

    en.wikipedia.org/wiki/Gas-pak

    Gas-pak is a method used in the production of an anaerobic environment. It is used to culture bacteria which die or fail to grow in the presence of oxygen ( anaerobes ). These are commercially available, disposable sachets containing a dry powder or pellets, which, when mixed with water and kept in an appropriately sized airtight jar, produce ...

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