Technical and Economic Analysis of Hydrogen Refueling Stations
Transcript of Technical and Economic Analysis of Hydrogen Refueling Stations
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Technical and Economic Analysis of Hydrogen Refueling Stations
Amgad Elgowainy, Marianne Mintz, Jerry Gillette, Mark Paster, Matthew Hooks (TIAX), Bruce Kelly (Nexant)
National Hydrogen AssociationSacramento, CAApril 1, 2008
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The submitted presentation has been created by Argonne National Laboratory, a U.S. Department of Energy laboratory managed by UChicago Argonne, LLC, under Contract No. DE-AC02-06CH11357 with the U.S. Department of Energy. The U.S. Government retains for itself, and others acting on its behalf, a paid-up, nonexclusive, irrevocable worldwide license in said presentation to reproduce, prepare derivative works, distribute copies to the public, and perform publicly and display publicly, by or on behalf of the Government.
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Presentation Overview
Refueling Station Configuration Options
Station Storage Requirements
Design and Cost Assumptions
Optimization
Results
Summary and Conclusions
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Gaseous Refueling Station Configuration Options
Storage
Compression
Dispensing
Cascade ChargingSystem
PipelineSupply
Storage
Compression
Dispensing
Cascade ChargingSystem
PipelineSupply
Compression
Dispensing
Cascade ChargingSystem
Tube-TrailerCompression
Dispensing
Cascade ChargingSystem
Tube-Trailer
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Liquid Refueling Station Configuration for Liquid H2 Delivery by Trucks
Evaporation
Dispensing
Cascade ChargingSystem
Pumping
LH2 Storage
Evaporation
Dispensing
Cascade ChargingSystem
Pumping
LH2 Storage
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Station MINIMUM Storage Requirement
-Refueling station storage requires a minimum of 1/3 of the station daily demand
Friday Demand Profile
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% o
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l dai
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Average ~30% of Daily Demand
LH2Liquid truck
delivery
Lowpressure vessels
Pipelinedelivery
Tube-trailerdelivery
At refueling station
Friday Demand Profile
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AverageAverage ~30% of Daily Demand~30% of Daily Demand
LH2Liquid truck
delivery
LH2LH2Liquid truck
delivery
Lowpressure vessels
Pipelinedelivery
Lowpressure vessels
Pipelinedelivery
Tube-trailerdelivery
Tube-trailerdelivery
At refueling stationAt refueling station
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STATION DESIGN AND COST ASSUMPTIONS
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Cascade Charging System (NOT Effective for Storage)
ASTM SA372, Grade J, Class 70 low alloy steelVessels are 16 inches diameter, 30 feet long
6500 psia vessel holds 67 kg$926/kg of hydrogen (uninstalled)
Recommended inputs to H2A model$1204/kg of hydrogen, including shipping, auxiliaries, and installationNo economies of scale
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Low Pressure Gaseous Storage
Gas storage vessel designSA516, Grade 70; 2,500 psia; 2.5 in. wall thickness4.1 ft. diameter, 24.9 ft. long, 91 kg hydrogen capacity$2.30/lb of steel; $900/kg of hydrogen (uninstalled)
Recommended inputs to H2A model$1170/kg of hydrogen, including shipping, auxiliaries, and installationNo economies of scale
Low-Pressure Storage2500 psia
Low-Pressure Storage2500 psia
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Compressor Cost
y = 4.2058x + 18.975
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Reciprocating
y = 4.2058x + 18.975
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y = 4.2058x + 18.975
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Refueling Station Optimization: Balance between Cascade & Compressor CapacitiesOptimum:Compressor Capacity / Ave. Station Hourly Demand Rate ~ 2.0Cascade Capacity / Ave. Station Daily Demand ~ 0.15
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Hour
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4.16%
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Validation: Independent Models Produced Same Result Despite Small Variations in Assumptions
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St/C
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C/Cm: ExcelC/Cm: MatlabSt/Cap: ExcelSt/Cap: Matlab
C=Compressor CapacityCm=Ave. Station Hourly Demand RateSt=Storage CapacityCap=Ave. Station Daily Demand
Station Average Daily Capacity [kg/day]
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C/Cm: ExcelC/Cm: MatlabSt/Cap: ExcelSt/Cap: Matlab
C=Compressor CapacityCm=Ave. Station Hourly Demand RateSt=Storage CapacityCap=Ave. Station Daily Demand
Station Average Daily Capacity [kg/day]
C = Compressor capacityAHD = Average Hourly DemandCASCAP = Cascade capacityADD = Average Daily Demand
CA
SC
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HD
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RESULTS
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GH2 Refueling Station Cost Analysis– Refueling station cost is a major contributor to the
total delivery costRefueling Station Cost Relative to Total Delivery Cost
(Pipeline delivery to Indianapolis at 20% penetration, Plant 62 mi from City Gate)
$0.00
$1.00
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$6.00
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$9.00
0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500
Average Refueling Station Daily Demand [kg/day]
[$/k
g H2
del
iver
ed]
Total Delivery Cost [$/kg]
Refueling Station Cost Contribution [$/kg]
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GH2 Refueling Station Cost Analysis– Installed capital cost represents the majority of the
refueling station cost
Breakdown of Total Refueling Station Cost
Total Installed Capital75%
Other Capital17%
Total O&M8%
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GH2 Refueling Station Cost Analysis– Compressors, Cascade System, and GH2 storage are the
major component contributing to the total capital costRefueling Station Installed Capital Cost [$2005]
$0
$500,000
$1,000,000
$1,500,000
$2,000,000
$2,500,000
$3,000,000
$3,500,000
$4,000,000
$4,500,000
$5,000,000
100 200 500 1000 1500 2000
Average Refueling Station Daily Demand [kg/day]
Inst
alle
d C
apita
l [$2
005]
Controls and Safety
Dispensers
Storage
Cascade
Electrical
Compressor(s)
Note: Compressor cost includes one backup compressor
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GH2 Refueling Station Cost Analysis– Compressors, Cascade System, and GH2 storage are
the major components contributing to total capital cost
% Cost Contribution of Refueling Station Components to Total Installed Capital[500 kg/day Station]
Compressor(s)31%
Electrical5%
Cascade26%
Storage26%
Dispensers2%
Controls and Safety10%
Note: Compressor cost include one backup compressor
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Summary and Conclusions
A methodology was developed to design and optimize gaseous and liquid hydrogen refueling stations
Refueling station compressors and cascade system were sized to minimize total station cost
Refueling station storage requires a minimum of 1/3 of the station daily demand
Compressors, cascade system, and GH2 storage are the major components contributing to the total capital cost of hydrogen delivery
The total cost of the refueling station is a major contributor to the total delivery infrastructure cost
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Thanks to other members of H2A/Nexant project team,
USDOE Delivery Tech Team and OFCHIT
Questions??
Version 2.0 of the H2A Delivery Models will be Published SOON!