INNOVATIVE CONCEPTS FOR NAVAL SHIP SYSTEMS

Abstract

ABSTRACTIncreasing demands are being made of U.S. naval ship designers, to provide increased efficiency in both the use of space, and in the development of “highly energy‐efficient” shipboard systems. This efficient use of space will allow the placement of additional (or larger) weapons systems on combat ships. The reduction of energy consumption, using energy‐efficient ship systems, will extend a combat ship's cruising range. Therefore, the development of suitable advanced systems will enhance the military effectiveness of U.S. Naval Combat Ships.To achieve such improvements in naval ship design, many development programs are now in progress, both in the private sector (including Ingalls Shipbuilding Division) and in the U.S. Navy Establishment. An example of a major “NAVSEA‐sponsored” program is the RACER program, in which a “highly‐efficiency” COGAS (Combined Gas and Steam) system will be developed. This propulsion plant will be suitable for use on U.S. Navy Destroyers, and on other future naval combatants.In order to contribute to naval ship improvement, Ingalls Shipbuilding Division conducts an Independent Research and Development Program. This program includes the development of improved propulsion, ship's service power, and auxiliary systems. These include advancements in their type, efficiency (space and energy), and shipboard configuration.This paper will describe recent advances in these ship systems. Innovations to be described included advanced power plants (COGAS and other power plant configuration), and reduction of hull and appendage drag. Innovative auxiliary systems will include water purification, and energy‐efficient auxiliaries. The emphasis will be on their viability for U.S. Navy application, and the potential for improved energy efficiency.Not all of the concepts described will be eventually implemented on naval ships. However, if those which do not result in hardware serve to stimulate discussion, and development of other innovative systems, this paper will have served its purpose.