Fuel-Cell Hybrid Systems to Generate Shipboard Electrical Power

2009 ◽  
Author(s):  
W. J. Sembler ◽  
S. Kumar
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Air Quality ◽  
Hybrid Systems ◽  
Hybrid System ◽  
Cell Hybrid ◽  
Electrical Power ◽  
History Of ◽  
Marine Applications ◽  
Fuel Cell Hybrid

The reduction of shipboard airborne emissions has been receiving increased attention due to the desire to improve air quality and reduce the generation of greenhouse gases. The use of a fuel cell could represent an environmentally friendly way for a ship to generate in-port electrical power that would eliminate the need to operate diesel-driven generators or use shore power. This paper includes a brief description of the various types of fuel cells in use today, together with a review of the history of fuel cells in marine applications. In addition, the results of a feasibility study conducted to evaluate the use of a fuel-cell hybrid system to produce shipboard electrical power are presented.

Simulation of Distributive Generation Using Fuel Cell Hybrid Systems

2006 ◽  
Author(s):  
Brian Wolf ◽  
Shripad Revankar
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Hybrid Systems ◽  
Hybrid System ◽  
Cell Hybrid ◽  
Cell Model ◽  
Initial Step ◽  
Parametric Studies ◽  
Key Issues ◽  
Fuel Cell Hybrid

Fuel cell hybrid technology has the potential to significantly change our current energy infrastructure. Past studies have shown that the combination of fuel cells and turbines can produce power at remarkably high efficiencies with low levels of pollution. The work presented in this paper is an initial step to further development of a hybrid system model. The fuel cell model discussed is used to perform parametric studies to aid in the optimization of a hybrid system. This paper provides an overview of fuel cell hybrid systems and distributive generation. A fuel cell model is implemented in SIMULINK using basic balance equations. Key issues of modeling specifically high temperature fuel cells are discussed along with their transient response and how it may affect the performance of a distributive generation system.

Physical Simulator of Start-Up for Hybrid System Cathode Side

2006 ◽  
Author(s):  
A. Traverso ◽  
M. L. Ferrari ◽  
M. Pascenti ◽  
A. F. Massardo
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Hybrid Systems ◽  
Hybrid System ◽  
Cell Hybrid ◽  
Cathode Side ◽  
Outlet Temperature ◽  
Test Rig ◽  
Start Up ◽  
Fuel Cell Hybrid

A start-up test rig at TPG laboratory at the University of Genoa, Italy, has been designed and built for two main purposes: physically simulating different early start-up layout and procedures of high temperature fuel cell hybrid systems, and validating time-dependent hybrid system models based on TRANSEO software. Since start-up is a critical operating phase for high temperature fuel cell hybrid systems, and it may require specific modifications to the hybrid system layout, the start-up test rig is meant to be very flexible for testing several start-up layouts as well as the coupling of different turbomachines and stacks. Results for cold test, 700°C and 950°C start-up combustor outlet temperature tests are reported. Such results show the pressure and temperature quick rise during the early phase of start-up, which could represent an issue for the mechanical and thermal stress to the stack. A dynamic model of the test rig was built up and validated showing good agreement with the experimental results. This achievement was very useful to increase the confidence with predictive dynamic simulation tools during the start-up phase, where experimental data are hardly available and where the fuel cell materials may undergo risky thermal shocks.

Control Performance Study on the Molten Carbonate Fuel Cell Hybrid Systems

2008 ◽  
Author(s):  
Huisheng Zhang ◽  
Lijin Wang ◽  
Shilie Weng ◽  
Ming Su
Keyword(s):  
Fuel Cell ◽  
Hybrid Systems ◽  
Hybrid System ◽  
Cell Hybrid ◽  
Operating Conditions ◽  
Molten Carbonate Fuel Cell ◽  
Control Performance ◽  
Molten Carbonate ◽  
Carbonate Fuel Cell ◽  
Fuel Cell Hybrid

The intention of this work is to investigate the control characteristics of molten carbonate fuel cell hybrid systems through dynamic simulation. Because of the complexity and interaction between different components in the hybrid systems, several parameters, such as the turbine rotational speed, the temperatures within the fuel cell, the differential pressure between the anodic and the cathodic side, the steam-to-carbon ratio, need to be monitored and kept within safe limits. On the other hand, the system response to load variations is required to be as quick as possible in order to meet the energy demand. Several control loops were introduced into the hybrid system, the paper focuses on the control performance to regulate the net electrical power from the hybrid system, avoiding malfunctions or damage. The results for several operating conditions are presented and discussed.

Control Performance Study on the Molten Carbonate Fuel Cell Hybrid Systems

2010 ◽  
Vol 7 (6) ◽  
Author(s):  
Huisheng Zhang ◽  
Shilie Weng ◽  
Ming Su ◽  
Wenshu Zhang
Keyword(s):  
Fuel Cell ◽  
Hybrid Systems ◽  
Hybrid System ◽  
Cell Hybrid ◽  
Operating Conditions ◽  
Molten Carbonate Fuel Cell ◽  
Control Performance ◽  
Molten Carbonate ◽  
Carbonate Fuel Cell ◽  
Fuel Cell Hybrid

The intention of this work is to investigate the control characteristics of molten carbonate fuel cell hybrid systems through dynamic simulation. Because of the complexity and interaction between different components in the hybrid systems, several parameters, such as the turbine rotational speed, the temperatures within the fuel cell, the differential pressure between the anodic and the cathodic side, and the steam-to-carbon ratio, need to be monitored and kept within safe limits. On the other hand, the system response to load variations is required to be as quick as possible in order to meet the energy demand. Several control loops were introduced into the hybrid system. This paper focuses on the control performance to regulate the net electrical power from the hybrid system, avoiding malfunctions or damage. The results for several operating conditions are presented and discussed.

General fuel cell hybrid synergies and hybrid system testing status

2006 ◽  
Vol 159 (1) ◽  
pp. 656-666 ◽  
Author(s):  
Wolfgang Winkler ◽  
Pedro Nehter ◽  
Mark C. Williams ◽  
David Tucker ◽  
Randy Gemmen
Keyword(s):  
Fuel Cell ◽  
Hybrid System ◽  
Cell Hybrid ◽  
System Testing ◽  
Fuel Cell Hybrid
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