Which effect occurs within a refrigeration system when moisture causes ice formation at the expansion valve?

💡 Explanation

Reduced cooling happens because **ice blockage** at the valve restricts refrigerant flow, hindering evaporation and the **Joule-Thomson effect**. Therefore, the cooling capacity decreases, rather than increasing efficiency, because less heat is absorbed by the refrigerant's phase change.

• Which effect will appear when applying enough voltage difference for impact ionization to occur in a semiconductor diode?
• Which outcome occurs when a heavily doped silicon nanowire's depletion regions fully merge?
• Which mechanism causes arcing within a power capacitor?
• Which consequence results when electron wave functions overlap during crystal growth?
• Which outcome occurs when raising the reaction temperature?
• Which outcome occurs when thermal runaway degrades NTC thermistor resistance?