Sensible Heat Flow Calculator

Calculate sensible heat flow in both SI (metric) and English (imperial) units for HVAC applications

Calculator

Unit System

Specific Heat (cp) (kJ/kg·K (SI) or Btu/lb·°F (Imperial))

Air Density (ρ) (kg/m³ (SI) or lb/ft³ (Imperial))

Air Flow (q) (m³/hr (SI) or ft³/min (Imperial))

Temperature Difference (Δt) (°C (SI) or °F (Imperial))

Sensible Heat Flow (SI)-- kW

Sensible Heat Flow (Imperial)-- Btu/hr

Parameter	SI Units Value	Imperial Units Value	Description
Specific Heat (cp)	1.005 kJ/kg·K	0.2388 Btu/lb·°F	Standard air properties
Air Density (ρ)	1.202 kg/m³	0.075 lb/ft³	Air density at standard conditions
Air Flow (q)	m³/hr	ft³/min	Volumetric air flow rate
Temperature Difference (Δt)	°C	°F	Temperature difference across system
Sensible Heat Flow Formula (SI)	Qs = cp·ρ·q·Δt / 3600	-	Results in kW
Sensible Heat Flow Formula (Imperial)	-	Qs = 1.075·q·Δt	Results in Btu/hr