How does the strength of the strong liquor in an absorption system change with evaporator load?

In an absorption system, the strength of the strong liquor, which is typically a concentrated solution, is influenced by the evaporator load. When the evaporator load decreases, the amount of water being removed from the weak solution also decreases. This leads to a reduction in the concentration of the strong liquor because less solvent is being evaporated away to create vapor, resulting in a dilution effect.

As the evaporator operates with a lower load, it can no longer effectively concentrate the solution as it would under higher loads. This process reduces the overall strength of the strong liquor since the remaining liquid in the system has not had sufficient time to reach higher concentrations. Thus, as the evaporator load decreases, the strength of the strong liquor correspondingly drops, making the relationship a direct one where the liquor becomes weaker due to insufficient separation of the solvent from the solute.

Understanding this dynamic is vital for managing and optimizing absorption systems effectively, ensuring that the desired concentration levels are maintained based on operational conditions.