Which limitation is amplified by improper superheat control within a refrigeration system evaporator?

💡 Explanation

When superheat control is improper, the evaporator coil becomes partially filled with vapor, because of premature boiling, reducing the effective surface area available for heat transfer thus limiting full cooling. Therefore decreased coil surface area results rather than efficiency decline, subcooling increase, or greater pressure drop, all of which involve other process characteristics.

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