A similar example is the "'cocurrent concentration exchange " '.
2.
Countercurrent dryers have several advantages over cocurrent systems.
3.
With cocurrent or parallel exchange the heated and cooled fluids can only approach one another.
4.
In cocurrent exchange the initial gradient is higher but falls off quickly, leading to wasted potential.
5.
In cocurrent systems, the purge gas is 50 �F to 100 �F hotter than the soil discharge temperature.
6.
Higher temperatures and longer residence time mean that cocurrent systems can be used to treat soils contaminated with heavier petroleum products.
7.
As the Cocurrent and countercurrent exchange mechanisms diagram showed, a cocurrent exchange system has a variable gradient over the length of the exchanger.
8.
As the Cocurrent and countercurrent exchange mechanisms diagram showed, a cocurrent exchange system has a variable gradient over the length of the exchanger.
9.
Besides the direction of purge gas flow relative to soil feed direction, there is one major difference in configuration between countercurrent and cocurrent rotary dryers.
10.
Cocurrent systems are effective for light and heavy petroleum products including No . 6 fuel oil, crude oil, motor oil, and lubricating oil.
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