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Energy-Efficiency Indices: A Descriptive Overview

Inside this lesson
  • Define carbon intensity as CO2 emitted per unit of transport work (cargo mass x distance)
  • Distinguish design-stage and operational efficiency indices
  • Compute carbon intensity in g CO2/(t-nm) from emissions, cargo, and distance
  • Name the three engineering levers (propulsion efficiency, cargo loading, speed) that drive intensity down

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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.