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Mist is a phenomenon caused by small droplets of water suspended in the cold air, usually by condensation. Physically, it is an example of a dispersion. It is most commonly seen where water vapor in warm, moist air meets sudden cooling, such as in exhaled air in the winter, or when throwing water onto the hot stove of a sauna.
The "cleaned" gases are normally passed through a mist eliminator (demister pads) to remove water droplets from the gas stream. The dirty water from the scrubber system is either cleaned and discharged or recycled to the scrubber. Dust is removed from the scrubber in a clarification unit or a drag chain tank.
Mist spraying system with water pump beneath. Misting systems work by forcing water via a high pressure pump and tubing through a brass and stainless steel mist nozzle that has an orifice of about 5 micrometres, thereby producing a micro-fine mist. The water droplets that create the mist are so small that they instantly flash-evaporate.
An external water spray system (EWSS) is a domestic external fire sprinkler system designed to protect homes from bushfires and wildfires.While external spray systems have long been used in fire protection for buildings and facilities [citation needed], EWSS refers to domestic bushfire/wildfire systems.
Water mist systems are used for special hazards applications. This type of system is typically used where water damage may be a concern, or where water supplies are limited. NFPA 750 [19] defines water mist as a water spray with a droplet size of "less than 1000 microns at the minimum operation pressure of the discharge nozzle". The droplet ...
High pressure water misting systems for expensive and delicate equipment, for example, marine engine rooms. Deluge systems for protecting assets or keeping potentially explosive materials cool in the event of fire (e.g. gas canisters) Water tunnel systems designed to ensure a safe "cool" corridor to allow people to escape in the event of fire.