Sensible Heat Ratio Calculator:
Enter the values of sensible heat, qs(kW) and total heat, qt(kW) to determine the value of Sensible Heat Ratio, SHR.
Resistor Heat Formula:
The Sensible Heat Ratio (SHR) is a dimensionless number that represents the proportion of sensible heat to the total heat (sensible + latent) in a system. It is a critical parameter in HVAC (Heating, Ventilation, and Air Conditioning) systems, as it indicates the system’s ability to handle temperature changes relative to humidity control.
Sensible heat refers to the heat that causes a change in temperature without altering the moisture content, while latent heat is associated with changes in moisture content without affecting temperature. The SHR is vital in designing and optimizing air conditioning systems, as it helps ensure the system maintains desired thermal comfort conditions efficiently.
In practical terms, a higher SHR indicates a focus on temperature control (sensible heat), while a lower SHR implies a greater emphasis on humidity control (latent heat).
SHR is especially significant in spaces like data centres, offices, or residential areas where maintaining a specific temperature is a priority.
The ratio is calculated as the sensible heat divided by the total heat in the system. The values of SHR range between 0 and 1, with 1 meaning all the heat is sensible and 0 implying all the heat is latent. This ratio assists in selecting appropriate HVAC equipment by matching the system’s capabilities to the cooling or heating load’s requirements.
Sensible Heat Ratio, SHR equals the sensible heat, qs(kW) in kiloWatt divided by the total heat, qt(kW) in kiloWatt, which is the sum of sensible and latent heat.
Sensible Heat Ratio, SHR = qs(kW) / qt(kW)
SHR = sensible heat ratio.
qs(kW) = sensible heat in kiloWatts, kW.
qt(kW) = total heat in kiloWatts, kW.
Sensible Heat Ratio Calculation:
1.An HVAC system delivers 12 kW of sensible heat and 20 kW of total heat. Calculate the Sensible Heat Ratio (SHR).
Given:qs(kW) = 12kW, qt(kW) = 20kW.
Sensible Heat Ratio, SHR = qs(kW) / qt(kW)
SHR = 12 / 20
SHR = 0.6.
2.An air conditioning unit has a sensible heat of 9kW and a Sensible Heat Ratio of 0.75. Calculate the total heat.
Given:qs(kW) = 9kW, SHR = 0.75.
Sensible Heat Ratio, SHR = qs(kW) / qt(kW)
qt(kW) = qs(kW) / SHR
qt(kW) = 9 / 0.75
qt(kW) = 12kW.