THERMAL / 022
Heat Exchanger ε-NTU, LMTD & Outlet Temperature Calculator
Connect UA, capacity rates and inlet temperatures to effectiveness, NTU, heat duty, outlet temperatures and LMTD in one thermal consistency check.
Use the calculation to challenge the CFD setup.
Heat-exchanger CFD should conserve the same energy that a compact model predicts. This calculator provides an independent system-level check before investigating detailed local flow structures.
Define the reference scale. Use values that represent the actual engineering problem.
Calculate transparently. The tool exposes the governing relation and intermediate outputs.
Compare with the solver. Look for inconsistent definitions, units or modelling assumptions.
Test sensitivity. Important CFD conclusions should not depend on one arbitrary input or discretization choice.
Move from calculation to diagnosis.
Use the result as a benchmark, then follow the relevant Technical Case or consulting capability when the actual CFD model needs deeper judgement.