Charge Air Cooler Effectiveness
ε = (T1 − T2) / (T1 − T_cw) - CAC effectiveness. Modern marine CAC typically 0.70–0.85.
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Formula, assumptions, and limits
| Symbol | Meaning | Unit |
|---|---|---|
| Air after compressor | °C | |
| Air after CAC | °C | |
| CW inlet to CAC | °C |
Source: ASHRAE Handbook - Heat Exchangers
In short
\u03b5 = (T1 \u2212 T2) / (T1 \u2212 T_cw) - CAC effectiveness.