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Air draft is the measurement from the water surface to the highest point of a a ship, boat or other vessel on the water.æ It is used to help the captains calculate a safe passage under bridges and the like.
the function of air vessel is to accumulate excess quantitiy of water flowing in the suction pipe or delivering pipe compressing the air inside the vessel
An air vessel is a device used in hydraulic systems to absorb excess pressure fluctuations in the system. It helps to maintain a more consistent pressure by storing and releasing air as needed, thus preventing damage to the system components.
One way to form a Nitrogen blanket below air is to fill an empty vessel with it. As the vessel fills with nitrogen, the atmosphere or air is purged from the vessel.
Rising and sinking air is called up draft and down draft, respectively.
air in the booth enters from the ceiling and exits thru the floor ( the draft is moving down in a side draft booth air would exit thru the walls
the vessel is made up of copper
A current of cool air is called a draft.
the warm is the fire
Draft
Heat
Air movement caused by heat.