# Sensible Heat

Written by Jerry Ratzlaff on . Posted in Thermodynamics

Sensible heat, abbreviated as Q, is the heat added to a substance which increases its temperature but not the phase is called sensible heat.  The sensible heat added to a substance can be readily calculated.  The quantity of heat in a body or the amount of heat energy which a body gains or loses in passing through a temperature range is measured in thermal units.

## Sensible Heat Formulas

 $$\large{ Q = m\;c \; \Delta T }$$ $$\large{ Q = 1.1 \; cfm \; \Delta T }$$ (HVAC) btu/hr

### Where:

$$\large{ Q }$$ = sensible heat

$$\large{ cfm }$$  = cubic feet per minute

$$\large{ m }$$ = mass

$$\large{ \Delta T }$$ = temperature differential

$$\large{ c }$$ = specific heat