Exact(3)
During circulation process, the pebbles are lifted pneumatically via a stainless steel lifting pipe and reinserted into the reactor.
The research shows that by controlling the time interval between transporting the two pebbles into the lifting pipe, the collisions between the pebbles can be avoided.
In pebble-bed HTR, graphite dust is generally produced by mechanical abrasion, in particular, by the abrasion of graphite pebbles in the lifting pipe of the fuel handling system.
Similar(56)
Mechanical factors mostly depend on inappropriate mud weight (too light or too heavy) and improper drilling methods (drilling extent, pipes' moment and vibration, and lifting pipes up and down), whereas chemical factors are dramatically influenced by drilling mud, that is to say, improper mud and insufficient inhibitors.
Sand particle attrition must also be considered because of the high velocities of almost 20 m/s in the lift pipe.
Airlift pumps (such as those used in home aquarium subsand filters) move large volumes of water when the lift pipes are of sufficient diameter.
The influence of the pipe diameter on the air-lift efficiency was studied for air-lift pipes of different lengths and found to be significant.
There's Pancho, a young friend of Sharon's, who was electrocuted when he lifted a pipe and it touched an overhanging wire.
When I want to find an example of a naturally noble creature, I must think of the Italian peasants, the artisans, the very simple people, while the higher you go in Italian society... ..... and as he lifted his pipe a little, it became a contemptible specimen of a class of Italians he does not admire.
When I want to find an example of a naturally noble creature, I must think of the Italian peasants, the artisans, the very simple people, while the higher you go in Italian society...". and as he lifted his pipe a little, it became a contemptible specimen of a class of Italians he does not admire.
Try to lift slosh pipe.
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