UEL - the concentration of hydrocarbon gas in air above which combustion cannot take place.
Related Terms |
AIR COOLER
A factory-encased assembly of elements whereby the temperature of air passing through the device is reduced.
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BUBBLE POINT
The differential gas pressure at which the first steady stream of gas bubbles is emitted from a wetted filter element under specified test conditions.
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AIR INFILTRATION
The leakage of air into a room through cracks in doors, windows, and other openings.
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ARC
A flash, caused by an electric current ionizing a gas or vapor.
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CLEAN ROOM
A facility or enclosure in which air content and other conditions (such as temperature, humidity, and pressure) are controlled and maintained at a specific level by special facilities and operating processes and by trained personnel.
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CROWN
The top of the piston in an internal combustion engine above the fire ring, exposed to direct flame impingement.
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CAM
Eccentric shaft used in most internal combustion engines to open and close valves.
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OUTDOOR AIR
Air taken from outdoors and, therefore, not previously circulated through the system.
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SPREAD
The divergence of the air stream in a horizontal or vertical plane after it leaves the outlet.
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AIR
A substance containing by volume approximately 78 - 79% nitrogen; 20.95% oxygen, 0.94% argon, traces of carbon dioxide, helium, etc.
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