For each pound of water evaporated, how many BTUs does an evaporative condenser reject?

The correct response is based on the amount of heat energy that is absorbed and subsequently rejected during the evaporation of water in an evaporative condenser. When water evaporates, it requires energy in the form of heat, which is known as the latent heat of vaporization.

The latent heat of vaporization for water is approximately 970 BTUs per pound at standard conditions. However, depending on various factors, such as temperature and pressure, the actual range of heat rejection can be slightly higher. Therefore, the range that encompasses this value, from 970 up to around 1057 BTUs per pound, accurately reflects the energy dynamics involved in the evaporation process.

This understanding of the energy transfer during evaporation is crucial for effectively operating cooling systems and ensures that operators can make informed decisions about cooling loads and system efficiency.