When will the BTUs absorbed by the condensing water be the greatest?

The greatest absorption of BTUs by the condensing water occurs when there is a high condenser temperature combined with a low condenser water temperature. This scenario allows for a larger temperature difference between the condensing refrigerant and the water, enhancing the heat transfer process.

When the condenser temperature is high, it indicates that the refrigerant is operating efficiently and collecting more heat from the vapor phase as it condenses. Meanwhile, having a low condenser water temperature means that the water can absorb more heat from the refrigerant before it reaches equilibrium, facilitating a more effective heat exchange. This combination maximizes the heat transfer capability of the water, resulting in a greater absorption of BTUs.

Consequently, this scenario is optimal for systems aiming for maximum thermal efficiency, as it allows the refrigeration cycle to effectively remove heat from the refrigerant, ensuring smooth operational conditions.