Issues with heat input and heat output in plate heat exchangers
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For plate heat exchangers, heat is introduced and removed from the same side, as is cold. Under normal circumstances, connections should be made according to these guidelines. What effects would occur if heat were introduced and removed from opposite sides? What are the disadvantages?
In a single-flow system, if both the hot side and the cold side are replaced entirely, replacing only one side will prevent cross-heat exchange, thereby affecting the heat transfer efficiency
The heat exchange efficiency seems to not differ much, right? As long as the filter isn’t installed backwards, that’s fine
In the water-to-water heat exchange mode, if the hot inlet and hot outlet are swapped, the cold inlet and cold outlet must also be swapped; counterflow is necessary to ensure that the heat exchange efficiency is not affected. In fact, it is even possible to swap the hot inlet with the cold inlet, as long as the fluids on the same side remain within the same flow channel and the two fluids flow in counterflow. The same applies to the steam-water heat exchange scenario: make sure that the steam enters from a higher position and the condensate exits from a lower position