Green ship technologies

Abstract

This chapter provides information on green ship technology measures. Included are background information, descriptions of the technologies, explanation of key issues, general pros and cons of each measure, and limits of applicability or effectiveness, as well as practical issues related to implementation. The technical measures described here include the design of energy-efficient ships using hull form optimization, efficient propellers, energy-saving devices, and other novel technologies; attention is paid also to air lubrication, wind-assisted propulsion, and solar power. A subsequent section on machinery systems covers key areas for machinery technology efficiency improvements including the main and auxiliary engines, waste heat recovery systems, auxiliary machinery, and hybrid power storage/production equipment. The last section on ballast water management addresses regulations and provides an overview of ballast water treatment systems and related issues.