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TECHNICAL PAPERS

Modeling and Simulation of an Indirect Diesel Proton Exchange Membrane Fuel Cell (PEMFC) System for a Marine Application

[+] Author and Article Information
M. B. V. Virji, R. M. Moore

Hawaii Natural Energy Institute, School of Ocean & Earth Science & Technology, University of Hawaii at Mānoa, Honolulu, HI 96822

P. L. Adcock

 Intelligent Energy Ltd., The Innovation Centre, Epinal Way, Loughborough, LE11 3EH, U.K.

J. B. Lakeman

 DSTL Porton Down, Salisbury, Wiltshire, SP4 0QR, U.K.

J. Fuel Cell Sci. Technol 4(4), 481-496 (May 22, 2006) (16 pages) doi:10.1115/1.2759505 History: Received November 30, 2005; Revised May 22, 2006

A dynamic simulation of a PEMFC hybrid system has been developed in a MATLAB/SIMULINK environment to study the component interactions between a diesel fuel processor, a PEMFC system, a compressor/expander system, and a battery pack. Each subsystem has been modeled using its fundamental reactions or processes. The simulation also allows subsystem performance to be analyzed and control strategies to be developed and tested for a range of configurations. This paper describes the models used in the dynamic simulation tool and how these models are programmed and implemented in the MATLAB/SIMULINK environment. The paper also presents the results from a study of a PEMFC marine system as an auxiliary power source for a ship hotel load to illustrate the capability of the simulation tool. The analysis focuses on the effect of using a 1.5MWe fuel cell stack and a diesel fuel processor with 36 tonnes of high-temperature LAIS (lithium-aluminium/iron sulphide) battery pack (2.88MWh) on the performance of the system under the hotel load duty cycle. A steady-state analysis was performed for the average system power of 1.5MWe, and the results of steady state calculations are also presented.

Copyright © 2007 by American Society of Mechanical Engineers
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References

Figures

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Figure 1

Schematic representation of a PEMFC hybrid system for a marine application (without thermal integration)

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Figure 2

Effect of H2O:C ratio on PoX reactor performance

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Figure 3

Equilibrium gas composition for range of different temperatures

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Figure 4

The calculated and experimented polarization curve

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Figure 5

Dynamic simulation of the PEMFC marine hybrid system in a MATLAB/SIMULINK environment

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Figure 6

Diesel fuel processor in the dynamic simulation

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Figure 7

PoX reactor model in the dynamic simulation

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Figure 8

GCU reactor model in the dynamic simulation

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Figure 9

PEMFC model in the dynamic simulation

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Figure 10

Compressor model in the dynamic simulation

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Figure 11

Expander model in the dynamic simulation

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Figure 12

Burner model in the dynamic simulation

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Figure 13

LAIS battery model in the dynamic simulation

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Figure 14

DC/DC converter model in the dynamic simulation

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Figure 15

Hotel load model in the dynamic simulation

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Figure 16

Control system model in the dynamic simulation

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Figure 17

Results from the dynamic simulation for 1.5MWe stack power (load, SoC, stack power, and battery power)

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Figure 18

Results from the dynamic simulation for 1.7MWe stack power (load, SoC, stack power, and battery power)

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Figure 19

Results from the dynamic simulation (load, PEMFC stack power, cell current, and cell voltage)

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Figure 20

Results from the dynamic simulation (load, battery power, current, and voltage)

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Figure 21

Results from the dynamic simulation (load, compressor power, expander power, and electrical efficiency)

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Figure 22

Results from the dynamic simulation (load, diesel, air, and hydrogen flow rate)

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