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Countercurrent and concurrent exchanger?

scilearner
in Physics

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Hello everyone,

 

I searched the net but I don't understand the difference.

 

BLO0D FLOW ---------------------------------->

0% ........................................… saturation

0% ........................................… saturation

WATER FLOW <-------------------------------

 

Countercurrent

 

BLO0D FLOW ---------------------------------->

0% ........................................… saturation

100%..................................… saturation

WATER FLOW --------------------------------->

 

Concurrent

 

I understand how equilibrium would be reached in concurrent but I don't understand how counter current maintains a concentration gradient. Please explain in simple language. Also if you can explain the above diagrams, I got it from net I don't understand them much. Thanks :)

Edited by scilearner

  • Author

Hello guys I just want to know why is that when 2 flows are parallel and opposite to each other, a concentration gradient is maintained always.

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