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Climate control in data centers

It depends on how the system is designed. Depending on the climate, they might be blowing a constant stream of outside air through the data center or they might be using an air handling unit (in which ...
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Do curves and bends in an airduct (or airpipe) influence the energy that can be captured from that airflow?

The rule of thumb is that a 90 degree bend in an air duct will cause a pressure drop equivalent to that of a straight pipe whose length is about 10 to 15 times the duct diameter at the bend. So you do ...
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Do curves and bends in an airduct (or airpipe) influence the energy that can be captured from that airflow?

Bends and other changes of direction in airways cause shock losses. The more numerous the number of bends and the tighter the change of direction, the greater the shock loss, with each change. When ...
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Removing air from voids plastic powder

There are so many causes of bubbles, it is necessary to identify the cause before any solution. The characteristics to be determined include: locations of bubbles ? recurring locations ? void or gas ?...
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Removing air from voids plastic powder

To answer your question as stated: Not so much heating slowly as holding it above the plastic's melting point for a while. But this depends heavily on the surface properties of the metal and the ...
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Vacuum cleaner hose length & diameter vs air resistance

You need a certain air speed in the hose to transport the material without it separating. The easiest way is straight up - there is no tendency to dump the solids. The hardest way is at a modest slant....
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Vacuum cleaner hose length & diameter vs air resistance

Suppose air flow constant. The bigger pipe diameter, the less will be linear air speed. There is friction between air and walls and between air layers too. The closer a point to pipe wall, the lower ...
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