Heat Recovery Calculator

The Formula

The formula for calculating heat recovery efficiency is:

\[Efficiency (\%) = \frac{T_{inlet} - T_{outlet}}{T_{inlet} - T_{ambient}} \times 100\]

Where:

• T_inlet: Inlet temperature (°C)
• T_outlet: Outlet temperature (°C)
• T_ambient: Ambient temperature (°C)

Calculation Steps

1. Subtract the outlet temperature from the inlet temperature
2. Subtract the ambient temperature from the inlet temperature
3. Divide the result from step 1 by the result from step 2
4. Multiply by 100 to get the percentage efficiency

Example Calculation

Let's calculate the heat recovery efficiency for a system with:

• Inlet temperature: 150°C
• Outlet temperature: 50°C
• Ambient temperature: 20°C

1. 150°C - 50°C = 100°C
2. 150°C - 20°C = 130°C
3. 100°C ÷ 130°C = 0.7692
4. 0.7692 × 100 = 76.92%

Therefore, the heat recovery efficiency is 76.92%.

Visual Representation

This visual shows the heat recovery process based on our example calculation.