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  2. Displacement ventilation - Wikipedia

    en.wikipedia.org/wiki/Displacement_ventilation

    Diffusers can be located against a wall ("wall-mounted"), at the corner of a room ("corner-mounted"), or above the floor but not against a wall ("free-standing"). [2] The cool air accelerates because of the buoyancy force, spreads in a thin layer over the floor, reaching a relatively high velocity before rising due to heat exchange with heat ...

  3. Diffuser - Wikipedia

    en.wikipedia.org/wiki/Diffuser

    Diffuser (sewage), an aerating device for sewage and industrial waste water treatments; Diffuser (thermodynamics), a device that controls the characteristics of a fluid at the entrance to a thermodynamic open system; Aroma lamp (sometimes called an aromatherapy diffuser or reed diffuser), used to disperse essential oils into the surroundings

  4. Diffuser (thermodynamics) - Wikipedia

    en.wikipedia.org/wiki/Diffuser_(thermodynamics)

    Diffusers can be as a shape of round, rectangular, or can be as linear slot diffusers (LSDs). E.g., linear slot diffusers take the form of one or several long, narrow slots, mostly semi-concealed in a fixed or suspended ceiling with airfoils behind the slots directing the airflow in the desired direction.

  5. Reed (plant) - Wikipedia

    en.wikipedia.org/wiki/Reed_(plant)

    Bamboo and, even more commonly, rattan stems are used as "reed sticks" to wick and disperse the scent of essential oils in aroma diffusers. (See Rattan § Food source .) Certain reed species were used in the manufacture of the writing implement, Reed pens , by scribes of antiquity .

  6. Diffuser (sewage) - Wikipedia

    en.wikipedia.org/wiki/Diffuser_(sewage)

    An air diffuser or membrane diffuser is an aeration device typically in the shape of a disc, tube or plate, which is used to transfer air and with that oxygen into the sewage or industrial wastewater. Oxygen is required by microorganisms/bacteria residents in the water to break down the pollutants.

  7. Coarse bubble diffusers - Wikipedia

    en.wikipedia.org/wiki/Coarse_bubble_diffusers

    Coarse bubble diffusers produce 1/4 to 1/2 inch (6.4 to 13 mm) bubbles which rise rapidly from the floor of a wastewater treatment plant or sewage treatment plant tank. They are typically used in grit chambers, equalization basins, chlorine contact tanks, and aerobic digesters , and sometimes also in aeration tanks.