Presentation to IRPApril 30, 2003 – 7:30 AM. 2 Today’s Agenda Fuel cell basics Problem...
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Transcript of Presentation to IRPApril 30, 2003 – 7:30 AM. 2 Today’s Agenda Fuel cell basics Problem...
Presentation to IRP April 30, 2003 – 7:30 AM
James Parker - ClientMidAmerican Energy
Dr. Vijay VittalFaculty Advisor
Brian AndersonEE
Brad DavisEE
Curtis IrwinEE
Hamed AbdelsalamEE
2
Today’s Agenda
Fuel cell basics Problem statement overview End product description Future work Project results Summary
3
List of Definitions
MCFC– Molten Carbonate Fuel Cell
PAFC– Phosphoric Acid Fuel Cell
PEMFC– Proton Exchange Membrane Fuel Cell
SOFC– Solid Oxide Fuel Cell
4
Problem Statement
Provide feasibility study to client– Operations of fuel cells– Market conditions– Fuel cells vs. fossil generation– Benefits and possible drawbacks– Possible applications
5
General Solution Approach Statement
Comparison of available and anticipated fuel cell technologies– Types– Operating conditions– Strategies
Customer demographics vs. types Utility issues
6
Operating Environment
MidAmerican service territory Fuel cells contained in enclosures Near heavy industrial plants Within residential areas Commercial applications
7
Intended Users
MidAmerican Energy
8
Intended Uses
Informational tool for personnel at MidAmerican to evaluate feasibility of fuel cells
Get a clear picture of the current fuel cell market
Inform clients of potential energy generation alternatives to fossil fuel
9
Assumptions
Only fuel cell issues will be addressed when discussing utility interconnection
The client has limited knowledge of fuel cells
Fuel cell will be stationary The client will incur the cost of the fuel
cell
10
Limitations
$100 budget Fuel cell
– Size– Enclosures– Output characteristics
11
End Product Description
Feasibility Study– Basic Fuel Cell Principles– Available Technologies– Economic Analysis– Market Readiness– Interconnection
12
Other Deliverables
Application Checklist– Residential, Commercial, Industrial– Rural, Urban– Peak, Off-Peak– Voltage/Current Ratings– Power Output
13
Present Accomplishments
General knowledge of fuel cell types and applications
Providing useful material to client Blue ribbon on project poster
14
Approaches Considered and one used
Approach Considered– Research based project
Final product is our client’s alternative to fossil fuel power generation
15
Project Definition Activities
Defined project as a two semester feasibility study on fuel cells for electric power generation
Scope defined by client, advisor, and team members
16
Research Activities
Researched the feasibility of fuel cells including– Types and operating conditions– Economics– Fuels– Market readiness
17
Design Activities
Design outline Research, research, research
18
Implementation Activities
Feasibility study Fuel cell specifics Current fuel cell market Application guidelines
19
Testing and Modification Activities
Product testing – Is the final product valuable to the client?
Multiple revisions
20
Other Significant Project Activities
Presented to EPRC annual meeting
21
Personal Budget
Personal Effort Budget (hours)
158.5
178173
177.5 HamedAbdelsalamBrianAndersonBrad Davis
Curt Irwin
22
Other recourses
Miscellaneous binding costs– $9
ASHRAE book ordered from library– Purchased by library
Learning about fuel cells– Priceless
23
Financial Budget
Cost ($)
$60
$0
$20
$40
$60
$80
$100
Poster
24
Project Schedule
25
Project Evaluation
Phase 1: Project Description (10%) Fully met Phase 2: Design Activity (15%) Fully met Phase 3: Implementation (40%) Exceeded Phase 4: Documentation (20%) Exceeded Phase 5: Testing (10%) Fully met Phase 6: Demonstration ( 5%) Exceeded
26
Commercialization
Currently no plans for commercialization Similar IEEE reports authored by students
sell for around $25– Require specific formatting (IEEE standards)
Production costs around $5 Possible market
– Electric utilities, IPPs, building managers, etc
27
Recommended Future Work
Re-evaluate as another 491/492 project in 3 to 5 years
28
Lessons Learned
Technical aspects of fuel cells Ability to work individually and combine
into coherent documents Need for clear agenda and set meeting
places & times Project kept team members interested
29
Risks and Risk Management
Anticipated risks– Loss of team member
Risk management– Documentation sources, information– Be aware of group member’s research– Communicate with group members
Anticipated risks encountered– None
Unanticipated risks encountered– None
30
Fuel Cell Operation
1. Extracted hydrogen enters the anode
1. Oxygen (Air) enters the cathode
2. Hydrogen electrons separate via anode catalyst; the electrolyte transfers the hydrogen ions onlyhttp://www.fe.doe.gov/coal_power/fuelcells/fuelcells_howitworks.shtml
31
Fuel Cell Operation
3. Electrons are utilized in an external circuit for energy consumption
4. Electrons, hydrogen ions, and oxygen recombine into water
http://www.fe.doe.gov/coal_power/fuelcells/fuelcells_howitworks.shtml
32
Fuel Cell TypesType PAFC MCFC SOFC PEMFC
Operating Temperature
≈220C ≈650C ≈1000C ≈80C
Electric Efficiency 40% 60% 50% 50% Cogen Efficiency 80% 85% 80% 70%
Other Features Cogen (hot water)Cogen (hot water, LP
or HP steam)Cogen (hot water, LP
or HP steam)Cogen (80C water)
Size Range 250 kW - 1MW 10 kW - 2MW 25 - 200 kW 25 - 250 kW
Fuel
Natural gas hydrogen, landfill
gas, digester gas, propane
Natural gas, hydrogen
Natural gas, hydrogen, landfill
gas, fuel oil
Natural gas, hydrogen, propane,
diesel
Cost per kW $2200 -$3750 $1000 -$1500 $1000 -$1500 N/A
Electrolyte phosphoric acidlithium-potassium
carbonate saltsolid ceramic
zirconia poly-perflourosulfonic
acid
Commercial StatusSome commercially
available
Likely commercialization
2004
Likely commercialization
2003
Some commercially available
EnvironmentalNearly zero emissions
Nearly zero emissions
Nearly zero emissions
Nearly zero emissions
Catalyst Platinum Nickel Platinum Platinum
Fuel Cells Overview
33
Common FC Specifications
Expected Life– Entire unit lasts approximately 20 years– Fuel Cell stack lasts about 40,000 hours– Increases based on capacity of operation
Efficiency– Typically between 30% and 50% (No CHP)– Decreases based on capacity of operation
All types can be used as CHP units
34
Utility Implications
State of Iowa– Fuel cells not “Renewable energy sources”
United States Federal Government– May be considered “Renewable energy
sources”
Department of Defense– Climate Change Rebate Program– $1000/kW
35
Current Fuel Cell Market
Manufacturer Size Units Installed
Date of Commercialization
FC Type
Ballard 250kW 0 2004 PEMFC
FuelCell Energy
250kW 20+ Currently marketed PEMFC
Plug Power 25kW 78 Currently marketed PEMFC
Siemens Westinghouse
200kW500kW
0 250kW, 10/2003500kW, 2005
SOFC
UTC 200kW 250+ Currently marketed PEMFC
36
Applicable Size Range
Applicable size range for fuel cell technologies
0
2
4
6
8
10
12
14
< 5kW 5 - 100kW .1 - 1MW 1-2MW > 2MWGenerating capacity
No
. o
f re
sp
od
an
ts
PEMFC PAFC MCFC SOFC
Source: American Society of Heating, Refrigeration, and Air Conditioning Engineers (ASHRAE) 2002 publication, Fuel Cells for Building Applications
37
Utility Interconnection
Major requirements for distributed power generation (DPG) summarized from the IEEE Draft Standard P1547 in three categories:
General requirements Safety and protection requirements Power quality requirements
Grid independent
Grid parallel
38
Fuels
Six types of fuel: 1. Hydrogen
2. Natural gas
3. Methanol
4. Fuel oil
5. LPG (Liquefied Petroleum Gas)
6. Coal gas
39
Fuels
Natural Gas – Existing production and transportation
infrastructure able to support use fuel cells as generation units.
– Market ready• Infrastructure• Fuel cell design
40
Natural Gas Market
Iowa Natural Gas Consumption by Sector
0
50
100
150
200
250
300
350
400
1960 1970 1980 1990 2000 2010
Year
Bil
lio
n C
ub
ic F
ee
t
Residential
Commercial/Auto
Industrial
Utility
Total
Source: Natural Gas Annual, U.S. Department of Energy
41
Economic Feasibility
Cost of electricity
Annual savings based on hourly cost
42
DoD Application Calculators
DoD Fuel Cell - Interactive Guide
Application worksheet
DoD Fuel Cell - Step-by-Step Outline
43
Economic Considerations
High electric to natural gas ratio Over sized steam reformer
For the production of hydrogen as a third benefit Electrical and thermal load profiles Natural gas rate structure Capacity factors above 50% Independent power producers: off-peak
sales Fuel cell production volume Existing infrastructure
44
Summary
Many factors need taken into consideration when evaluating a site for fuel cell installation. By covering the types of fuel cells, market readiness, available fuels, and economic considerations can we begin to understand the variables that determine feasibility. Therefore, only through intense data collection of electrical, thermal, and site needs for a specific application can a determination be made.
45
Questions?
46
Thank You!