H2Lib Simulations of Hydrogen Power Parks

Project Summary

Full Title:	H2Lib Simulations of Hydrogen Power Parks
Project ID:	125
Principal Investigator:	Andy Lutz

Purpose

Analysis of various distributed H2 production pathways requires a flexible tool. H2Lib provides a library of components in Simulink to assemble models of hydrogen production systems. Simulations provide comparisons to data collected at demonstration stations.

Performer

Principal Investigator:	Andy Lutz
Organization:	Sandia National Laboratories (SNL)
Address:	PO Box 969, Sandia National Laboratories Livermore, CA 94551-0969
Telephone:	925-294-2761
Email:	aelutz@sandia.gov

Sponsor(s)

Name:	John Garbak
Organization:	DOE/EERE/HFCIT
Telephone:	202-586-1723
Email:	John.Garbak@ee.doe.gov

Period of Performance

Start:	October 2002
End:	September 2008

Project Description

Type of Project:	Model
Category:	Hydrogen Fuel Pathways, Macro-Economic
Objectives:	Evaluate system and component efficiency; costs of hydrogen and electricity production; engineering simulation of hydrogen power parks; energy and mass balances.
Technologies Modeled:	Steam methane reforming; electrolysis; stationary fuel cells; high-pressure storage; compression; wind turbines; solar photovoltaic; membrane separation.
User Inputs:	User inputs depend on the specific component model: operating conditions such as temperature, pressure; polarization curves for fuel cells or electrolyzers; power maps for wind turbines; efficiency for solar photovoltaic; economic blocks take capital, feedstock, and operation costs.

Methodology/Approach:	Thermodynamic analysis, including 2nd-law exergy analysis; chemical equilibrium for reactions; energy/mass balances; levelized-cost analysis; dynamic simulation.

Hardware/Software Requirements:	MatLab/Simulink; Chemkin.

User Interface:	Simulink provides a GUI interface that allows blocks to be assembled from a palette; H2Lib provides a library of hydrogen component models within the Simulink palette. Simulink also allows for construction of a GUI interface for a given model; a prototype GUI for a sample hydrogen power system exists as a template.

Outputs:	Delivered cost of hydrogen and/or electricity; thermodynamic efficiency of components and system.

Assumptions Inherent in Model:	Cost analysis uses assumptions and default parameters from H2A; assumptions of physical models depend on the component.

Sensitivity Studies Facilitated:	Sensitivity studies can be performed with respect to process variables specific to a component, e.g., reforming model can vary temperature, steam-to-carbon ratio.

Milestones Supported:	Technology Validation Milestone 24: Validate a hydrogen cost of $3.00/gge (based on volume production). Organization: DOE/EERE/HFCIT Description: The analysis uses data from the hydrogen power parks to compute the cost of hydrogen for comparison to the technical targets. Completion Date: September 2009 Technology Validation Milestone 35: Validate $1.60/gge hydrogen cost from biomass and $3.10/kg for renewable/electrolysis (untaxed ) at the plant gate. Organization: DOE/EERE/HFCIT Description: The analysis considers the projected cost of hydrogen from wind turbines and biomass gasification. Completion Date: September 2014 Technology Validation Milestone 36: Validate co-production system using 50 kW PEM fuel cell; hydrogen produced at $3.60/gge and electricity at 8 cents/kWhr. Organization: DOE/EERE/HFCIT Description: The analysis performed simulations of hydrogen production and stationary fuel cells to produce electricity. Completion Date: March 2006

Milestones Supported:

Technology Validation Milestone 24: Validate a hydrogen cost of $3.00/gge (based on volume production).
- Organization: DOE/EERE/HFCIT
- Description: The analysis uses data from the hydrogen power parks to compute the cost of hydrogen for comparison to the technical targets.
- Completion Date: September 2009

Technology Validation Milestone 35: Validate $1.60/gge hydrogen cost from biomass and $3.10/kg for renewable/electrolysis (untaxed ) at the plant gate.
- Organization: DOE/EERE/HFCIT
- Description: The analysis considers the projected cost of hydrogen from wind turbines and biomass gasification.
- Completion Date: September 2014

Technology Validation Milestone 36: Validate co-production system using 50 kW PEM fuel cell; hydrogen produced at $3.60/gge and electricity at 8 cents/kWhr.
- Organization: DOE/EERE/HFCIT
- Description: The analysis performed simulations of hydrogen production and stationary fuel cells to produce electricity.
- Completion Date: March 2006

Products/Deliverables

	Description: FY 2007 Progress Report Publication Title: FY 2007 DOE Hydrogen Program Progress Report Article/Abstract Title: VI.B.2 Power Parks System Simulation Page number(s): 1091 Publisher: U.S. Department of Energy Author Name(s): Lutz, Andrew; Stewart, Emma (PDF 640 KB) Download Adobe Reader. Publication Date: November 2007 Description: FY 2006 Progress Report Publication Title: FY 2006 DOE Hydrogen Program Progress Report Article/Abstract Title: VI.G.2 Power Parks System Simulation Page number(s): 1026 Publisher: U.S. Department of Energy Author Name(s): Lutz, Andrew (PDF 442 KB) Download Adobe Reader. Publication Date: November 2006 Description: FY 2005 Progress Report Publication Title: FY 2005 DOE Hydrogen Program Progress Report Article/Abstract Title: VIII.F.2 Power Parks System Simulation Page number(s): 1232 Publisher: U.S. Department of Energy Author Name(s): Lutz, Andrew (PDF 304 KB) Download Adobe Reader. Publication Date: November 2005 Description: FY 2004 Progress Report Publication Title: FY 2004 DOE Hydrogen Program Progress Report Article/Abstract Title: V.C.2 Power Parks System Simulation Page number(s): 671 Publisher: U.S. Department of Energy Author Name(s): Lutz, Andrew (PDF 451 KB) Download Adobe Reader. Publication Date: November 2004 Description: H2Lib is a library of component models in Simulink for use in simulating distributed H2 production. Publication Notes: H2Lib has not been released for public use; it has been shared on a limited basis with collaborators working with Sandia National Laboratories.

Description: FY 2007 Progress Report
Publication Title: FY 2007 DOE Hydrogen Program Progress Report
Article/Abstract Title: VI.B.2 Power Parks System Simulation
Page number(s): 1091
Publisher: U.S. Department of Energy
Author Name(s): Lutz, Andrew; Stewart, Emma
(PDF 640 KB) Download Adobe Reader.
Publication Date: November 2007
Description: FY 2006 Progress Report
Publication Title: FY 2006 DOE Hydrogen Program Progress Report
Article/Abstract Title: VI.G.2 Power Parks System Simulation
Page number(s): 1026
Publisher: U.S. Department of Energy
Author Name(s): Lutz, Andrew
(PDF 442 KB) Download Adobe Reader.
Publication Date: November 2006
Description: FY 2005 Progress Report
Publication Title: FY 2005 DOE Hydrogen Program Progress Report
Article/Abstract Title: VIII.F.2 Power Parks System Simulation
Page number(s): 1232
Publisher: U.S. Department of Energy
Author Name(s): Lutz, Andrew
(PDF 304 KB) Download Adobe Reader.
Publication Date: November 2005
Description: FY 2004 Progress Report
Publication Title: FY 2004 DOE Hydrogen Program Progress Report
Article/Abstract Title: V.C.2 Power Parks System Simulation
Page number(s): 671
Publisher: U.S. Department of Energy
Author Name(s): Lutz, Andrew
(PDF 451 KB) Download Adobe Reader.
Publication Date: November 2004
Description: H2Lib is a library of component models in Simulink for use in simulating distributed H2 production.
Publication Notes: H2Lib has not been released for public use; it has been shared on a limited basis with collaborators working with Sandia National Laboratories.

Date Last Updated: 03/07/2008