The second most abundant gas in air, (21%). Colourless and odourless.
Related Terms |
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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ARC
A flash, caused by an electric current ionizing a gas or vapor.
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ANAEROBIC
A condition in which 'free' or dissolved oxygen is not present in the water.
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AEROBIC
A condition in which 'free' or dissolved oxygen is present in water.
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False brinelling
False brinelling of needle roller bearings is actually a fretting corrosion of the surface since the rollers are the I.D. of the bearing. Although its appearance is similar to that of brinelling, false brinelling is characterized by attrition of the steel, and the load on the bearing is less than that required to produce the resulting impression. It is the result of a combination of mechanical and chemical action that is not completely understood, and occurs when a small relative motion or vibration is accompanied by some loading, in the presence of oxygen.
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ADIABATIC COMPRESSION
Compressing a gas without removing or adding heat.
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FABRICATION INTEGRITY POINT
The differential gas pressure at which the first stream of gas bubbles are emitted from a wetted filter element under standard test conditions.
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FLUID
A substance readily assuming the shape of the container in which it is placed; e.g. oil, gas, water or mixtures of these. A general classification including liquids and gases.
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BACK WORK RATIO
Is the fraction of the gas turbine work used to drive the compressor.
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PNEUMATICS
Engineering science pertaining to gaseous pressure and flow.
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