Effectiveness–NTU ·
Rating a Heat Exchanger
un
seel
.com · ε = q / q_max · NTU = UA / C_min
NTU
0.00
ε
0.00
State
—
Hot oil (90 °C in)
Cold water (20 °C in)
Effectiveness ε
ε–NTU curve
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Un
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.com · Effectiveness–NTU Method