Research And Insight

Sensible heat ratio

Sensible heat ratio (SHR) is the term used to describe the ratio of sensible heat load to total heat load.

This can be formulated as:
     SHR = qs  /  qt
     qs  = sensible heat (kW)
     qt  = total heat (kW)

For example, an SHR value of 100 % would mean that an evaporator would only cool the air, i.e., a purely sensible load. On the other hand, an SHR value of 80 % would mean that 80 % of an evaporator load is used for cooling air (sensible load), while the remaining 20 % would provide dehumidification (latent load).