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Refrigeration & HVAC

Inside this lesson
  • Outline the four stages of the vapour-compression cycle (evaporator, compressor, condenser, expansion valve)
  • Define the coefficient of performance COP = Q_evap/W_comp for a refrigerator
  • Compute COP from evaporator heat removal and compressor power
  • Explain why a COP greater than 1 does not violate conservation of energy

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⚖️
Educational content covering topics typical of a first- and second-year marine engineering / naval architecture curriculum. Not a substitute for accredited coursework, and not suitable for real vessel design, operation, or safety decisions without review by a licensed professional engineer. References to classification societies, SOLAS, or MARPOL are descriptive context only, not compliance guidance.