Examples
Examples
Try the starting example
- Outside-air inlet temperature (°C)
- 0
- Exhaust-air inlet temperature (°C)
- 22
- Supply-air outlet temperature (°C)
- 16
- Temperature effectiveness (%)
- 72.727273
Try another scenario
- Outside-air inlet temperature (°C)
- 1
- Exhaust-air inlet temperature (°C)
- 22
- Supply-air outlet temperature (°C)
- 16
- Temperature effectiveness (%)
- 71.428571
Calculation method
Calculation method
Temperature effectiveness (%)
Supply temperature rise divided by maximum inlet temperature difference; equal heat-capacity rates assumed.
Symbols and units
- a
- Outside-air inlet temperature (°C)
- b
- Exhaust-air inlet temperature (°C)
- c
- Supply-air outlet temperature (°C)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- User-supplied measurements and assumptions; Supply temperature rise divided by maximum inlet temperature difference; equal heat-capacity rates assumed. Supported limits: Finite numeric values bounded to 1e9 magnitude; lists and tables contain 1–100 records unless a stricter bound is stated. Inputs use the units shown. Lists explicitly paired by a method must have matching lengths; independent polynomial coefficient vectors may differ. Respect stated physical, interpolation, policy and computational domain limits.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.