Method and apparatus for controlling mass flow rate of recycled anode tail gas in solid oxide fuel cell system
In an SOFC stack system, a reformer supplies reformate to the stack. An anode tail gas portion is recycled into the reformer. An inline flowmeter indicates an apparent recycle flow rate. A map of anode tail gas composition as a function of fuel utilization efficiency U, reformer oxygen/carbon ratio O:C, and recycle percentage R is generated on a laboratory test bed at various recycle rates and fuel utilization rates. Compositions are sent through a flowmeter and a Coriolus mass flowmeter provide a Coriolus flow and sensor voltage function across the various compositions and flow rates to create an average curve and an average (reference) voltage at a given flow. A scale factor Z is calculated and used to determine a scaled sensor voltage X for use in an average flow polynomial curve fit equation to calculate tail gas mass flow rate at any flow value indicated by the flow meter.
- Research Organization:
- Delphi Technologies, Inc., Troy, MI (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC26-02NT41246
- Assignee:
- Delphi Technologies, Inc. (Troy, MI)
- Patent Number(s):
- 7,562,588
- Application Number:
- 11/412,620
- OSTI ID:
- 1531592
- Resource Relation:
- Patent File Date: 2006-04-27
- Country of Publication:
- United States
- Language:
- English
System and method for integrated gasification control
|
patent | July 2001 |
Optimized solid/liquid separation system for multiphase converters
|
patent | May 2005 |
Method and apparatus for vaporizing fuel for a catalytic hydrocarbon fuel reformer
|
patent-application | June 2008 |
Similar Records
OPERATION OF SOLID OXIDE FUEL CELL ANODES WITH PRACTICAL HYDROCARBON FUELS
Solid State Energy Conversion Energy Alliance (SECA)