Answer
To reduce emissions during port cargo operations, a Chief Engineer should implement:
Boiler Management: Minimize auxiliary boiler usage by using waste heat recovery systems as long as possible or turning down boiler firing settings when cargo heating is not strictly required.
Shore Power (Cold Ironing): Connect the ship to high-voltage shore power systems if available at the berth, allowing the vessel to completely shut down its auxiliary diesel generators.
Generator Optimization: Match generator running configurations with actual deck crane/pump load profiles. Avoid running two heavily underloaded generators in parallel when one generator operating at 70-80% load is more fuel-efficient and produces less carbon per kilowatt-hour.