What additional heat must the cooling tower reject from the water in the chiller?

The correct answer relates to the comprehensive understanding of how a chiller operates within a cooling system. The cooling tower plays a critical role by rejecting heat that is not only generated by the process of cooling the conditioned space but also includes additional heat from the cooling cycle itself.

In a chiller system, the cooling load refers to the amount of heat energy that needs to be removed from the conditioned area to maintain the desired indoor climate. However, during this cooling process, the chiller also generates heat from the compression of refrigerant. This is known as the heat of compression, which occurs as the refrigerant is compressed and circulated through the system.

Thus, the cooling tower must reject both the cooling load (the heat from the conditioned area) and the heat of compression produced during the refrigeration cycle. This total amount of heat is what needs to be expelled by the cooling tower to maintain an efficient and effective cooling process.

The other choices focus on specific aspects of heat transfer. Condensation heat and latent heat pertain to phase changes in the refrigerant and other materials but do not represent the full scope of heat needing rejection by the cooling tower in conjunction with the cooling load. Heat of evaporation, while related to processes within the cooling system, is not as