Calculate heat exchanger effectiveness (ε) using the NTU method. Input Number of Transfer Units (NTU) and Capacity Ratio (Cr) to determine performance for parallel-flow heat exchangers. Ideal for engineers and students needing quick, accurate thermal design insights. Optimize heat transfer efficiency.
Formula:
For a parallel-flow heat exchanger, the Effectiveness (ε) is calculated using the following formula:
ε = [1 - exp(-NTU * (1 + Cr))] / (1 + Cr)
Where:
- ε: Heat Exchanger Effectiveness (dimensionless, between 0 and 1)
- NTU: Number of Transfer Units (dimensionless, a measure of heat exchanger size)
- Cr: Capacity Ratio (Cmin / Cmax) (dimensionless, between 0 and 1)