How to Use Mixed Air Temperature Calculator
- Pick temperature unit — K, °C, or °F.
- Enter mass (or flow) and temperature for each stream.
- Add or remove streams as needed.
- Read T_mix — the mass-weighted average temperature.
Formula & Theory - Mixed Air Temperature Calculator
T_mix = ( Σ mᵢ · Tᵢ ) / ( Σ mᵢ )Derived from an energy balance on streams with equal specific heat cp:
Σ mᵢ · cp · Tᵢ = (Σ mᵢ) · cp · T_mix| Symbol | Meaning |
|---|---|
| mᵢ | Mass flow (or mass) of stream i |
| Tᵢ | Temperature of stream i |
Assumptions and Limits
- Equal specific heat for all streams (use Mixed Air Calculator if humidity matters).
- No phase change or heat loss during mixing.
Use Cases for Mixed Air Temperature Calculator
- HVAC — Quick estimate of OA + RA blend temperature.
- Process plants — Combine warm and cool streams.
- Chemistry labs — Mix two reagent flows.
The Mixed Air Temperature Calculator is the simplest possible mass-weighted temperature blend.