Fuel Cell Power Plant

Future Ship Power Systems Concepts Today’s... Next... Gas Turbine + Fuel Cell...After Next Gas Turbine Distributed Fuel Cells + Gas Turbine Fuel Cells Enable Modular Power Installation & Flexible Ship Design

Molten Carbonate Ship Service Fuel Cell System 625 kW, 53% Eff, 450VAC 9.2 W/L, 69 kg/kW, NATO F-76 fuel - Navy Lab Evaluation FY ’ x 8.3’ x 11’ * Fuel processor module is designed as stand alone unit Fuel CellFuel Processing*Power Electronics 2

625 KW SSFC Demonstrator 625 KW SSFC Demonstrator MCFC 625kW Installation Lab Evaluation at NAVSEA Philadelphia 3

PEM Ship Service Integrated Fuel Cell Processor Integrated Fuel Cell Processor 500 kW, 35% Eff, 15 W/L, 46 kg/kW, NATO F-76 fuel - Extensive Land Based Evaluation Planned for FY04 - * Not Optimized for Ship Integration 5

ONR/NAVSEA Advanced Technology Development IPSTransition Full Scale FY SSFC Concept Design, Risk Reduction Testing Program Timeline/Transition 500KW IFP Design Fabrication, and Testing of 500KW ATR Integrated Fuel Processor Design, Fabrication, Operation and Testing of EDM Fuel Cell 2 nd Generation Fuel Cell Program (Adv. Reform, Sulfur Tolerance, Adv FC Marinization) Design, Fabrication, and Testing of FC Demonstrator FleetIntroduction Navy Shipboard Fuel Cell Program SBIR/STTR Insertion DDX Future Ship Concept 9 RTT Program Design, Fabrication, and Testing of 625KW MCFC Demonstrator

STAR Fuel Processor Autothermal reformer Substrate-based catalysts (no pellets) 200 kWth input Automotive volume (~75 liters) Design focus on gasoline Under-vehicle “flat” aspect ratio Modular, serviceable design

DuAlto – High Power Hybrid DG (2005) kW baseload DG –Simple product and BOP indicates low cost Proprietary PEM-turbine hybrid technology >45% electrical efficiency Lower cost than traditional PEM technologies –pressurization –scale –lower cost of turbine Field Tests Begin in late 2005

Pre Desulfurizer Integrated Reformer PEM Stack RTT Program Options System Operation with NATO F76 GE Nuvera UTC

Concept Design Hardware Phase I Result

VLFPP 500 Kwe, Concept design with two regenerable OSTs (using A-6 proprietary adsorbent) Component Volume (ft3) Weight, lb Tank0.28 OST OST Evaporator0.13 Condenser0.01 Sulfur tank0.331 Fractionator1.697 Total Bulk values Kwe420 Density value/Kwe kW VLFPP 0.2 L/kW and 0.2 kg/kW 2.5’ Length X 2.5’ Width X 3’ Height

Fuel Cell Module Conceptual All enclosed module Nominal 30 w/liter 8’ x ? x 7’ for a 500 kw system Mechanical interface on bottom of module Exhaust interface on top of module