Preface

This book integrates the technical knowledge obtained from educational and research activities to increase understanding of ship design, operation, and engineering. Modern ships are complex systems that involve structural optimization, energy generation and distribution, propulsion system design, ballast and wastewater management, and human resource administration.

The first section focuses on the design and operation of modern ships. It presents new approaches to ship propulsion systems based on high-performance sails whose aerodynamic characteristics approach those of rigid wings yet permit a reduction in the sail area in high wind and sea conditions. The design process of these sails is presented using computational analysis showing aerodynamic characteristics and optimum sail trim configurations. This section also discusses ballast wastewater, with a focus on ballast water treatment systems (BWTS) and ballast-free ships. New methods and standards in ship design are being developed to bring ecological balance and sustenance to marine ecosystems.

The second section discusses the logistics and management of modern ships. It presents several interesting and new approaches to maintaining ballasts and managing wastewater. In this context, many complex logistical issues must be overcome, whether in cabotage, maritime support, fluvial ships, or oil and gas rigs. The developed tools include organizing and forecasting tools designed to solve these problems in an organized, quick, and easy way.

> **Carlos Reusser** School of Electrical Engineering, Pontificia Universidad Catolica de Valparaiso, Valparaiso, Chile
