Specification

For VT10 plate fluid A passes from the port on the left of the heat exchanger through every other channel created by the plates to the opposite end port
on the left of the heat exchanger (looking at it the long way). Fluid B passes from the port on the right through the other channels created by the plates
and comes out the other port on the right side. The fluids are essentially touching each other through the plates and heat is transferred from the hot fluid to
the cold fluid. (but the fluids do not mix)