What is the formula for sensible heat ratio?

The formula for the sensible heat ratio is derived from the relationship between sensible and total heat in a thermal system. The correct formula expresses the ratio of sensible heat removed to the total heat removed from the system.

Sensible heat refers to the heat exchanged by a thermodynamic system that results in a temperature change but does not involve a phase change. Total heat consists of both sensible heat and latent heat (which is the heat associated with phase changes, such as evaporation or condensation).

The sensible heat ratio helps in understanding the efficiency of cooling processes in HVAC systems. It indicates how effectively a system removes sensible heat compared to total heat. A higher sensible heat ratio implies that the system is more focused on temperature control rather than moisture removal.

In the context of the other options, while they may relate to heat transfer concepts, they do not correctly represent the widely used definition of the sensible heat ratio. By focusing on the correct ratio of sensible heat to total heat, one can analyze and optimize HVAC system performance effectively.