Exam Question
(a) Describe with the aid of a sketch, a charge air cooler (10)
(b) State why it is necessary to maintain correct charge air temperature (6)
Class 4 (4th Engineer)
MEKM
📅 Apr 2024
Reference Answer
### (a) Description of a Charge Air Cooler
**1. Principle and Purpose**
The charge air cooler, or intercooler, is a heat exchanger located between the turbocharger compressor outlet and the engine's scavenge air manifold. Its primary purpose is to cool the air after it has been compressed by the turbocharger.
- **Compression and Heat**: According to the ideal gas law, compressing air increases its temperature and pressure.
**1. Principle and Purpose**
The charge air cooler, or intercooler, is a heat exchanger located between the turbocharger compressor outlet and the engine's scavenge air manifold. Its primary purpose is to cool the air after it has been compressed by the turbocharger.
- **Compression and Heat**: According to the ideal gas law, compressing air increases its temperature and pressure.
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