Great Sensible Heat Factor - GSHF
Calculator for Great Sensible Heat Factor (GSHF), which determines the capacity of a cooling coil to handle sensible heat load and cool fresh make-up air. GSHF is independent of total air flow and is calculated from sensible/total heat generation, fresh air mass flow, specific heat, temperatures, and specific enthalpies.
Great Sensible Heat Factor - GSHF
The Great Sensible Heat Factor represents the ratio of sensible cooling capacity to total cooling capacity and is calculated using:
GSHF = (Qs + mf × cp × (tf - tr)) / (Qt + mf × (hf - hr))
Where:
- Qs = Sensible heat generated in the room (kW)
- Qt = Total heat generated in the room (kW)
- mf = Fresh air mass flow - make up air (kg/s)
- cp = Specific heat of air (kJ/kg°C)
- tf = Temperature in fresh air (°C)
- tr = Temperature in room air (°C)
- hf = Specific enthalpy of fresh air (kJ/kg)
- hr = Specific enthalpy of air in the room (kJ/kg)