Kein Folientitel

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Fuel Cells Building Integration

• Fuel cells for CHP Existing Projects
• Fuel cells for domestic use Future Projects

Dr.-Ing. Peter Seifert DBI Gas- und
Umwelttechnik GmbH Leipzig / Freiberg Germany
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MITGAS Fuel Cell Project
Location MITGAS Office Building in Gröbers
(near Halle / Sachsen-Anhalt)

• Heat use
• Office heating
• Run the absorption chiller
• Power use
• Delivery into the grid

Existing Projects
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MITGAS Energy balance first year of operation
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MITGAS Reduction of emission
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Kamenz Fuel Cell Project
Location Malteser Hospital Kamenz (near
Dresden / Saxony)

• Heat use
• Hospital heating
• Run the adsorption chiller
• Power use
• Delivery to the hospital

Existing Projects
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Kamenz Data of the main components
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Power central
Solar collectors
Fuel cell
Kamenz Birds-eye view
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Auxiliary cooler for the fuel cell
Cooling tower for the adsorp-tion chiller
20 m³ heat tank
Heat cycle connections of the fuel cell
Kamenz Court
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View into the power central (Jan. 2000)
Adsorption chiller (MYKOM ADR 30) 105 kW
cooling capacity
Ice storage Capacity 400 kWh
Kamenz Power central
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Power
Fuel cell
Natural gas
Boilers
Heat storage
Heat
Natural gas
Solar collectors
Adsorption chiller
Cooling ceilings
Compression chiller
Cold heat
Ice storage
Kamenz Main components of the project
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Kamenz Energy distribution
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Kamenz Fuel cell operating hours
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Kamenz Fuel cell efficiencies
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Time Event 1335 Entered I 80 - Run Grid
Independent 1415 Entered I 50 - Run Grid
Connected 1446 Entered I 80 - Run
Grid Independent 1541 Entered I 50 - Run
Grid Connected
Kamenz Grid independent operation
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Kamenz Effects of the ice storage (hottest days
of the year)
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Future Opportunities

• Kinds of available fuel cells
• Domestic application of fuel cells

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Company Sulzer Hexis Vaillant EFC Cell
Type SOFC PEM PEM Power 1 kW el 1 4.6 kW el
1.5 kW el Heat 2.5 kW th 1.5 7 kW th 8 kW
th 12/16/22 kW th 25 50 kW
th Efficiency 85 gt 80 gt 70
Available Q3 / 2001 2002 Q2 / 2002 (Field
test) (Field test) (Field test)
Fuel cells for domestic use
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House of ones own Consumption and generation
mismatch
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DBI Future Projects

• Field test for 3 kinds of fuel cells
  in domestic projects
• Co-operation in the DVGW Project
  European Standardisation of Fuel Cells

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Domestic Application
T
waste gas
Pel
power
Pel
fuel cell
Pel
VEG
control
Pth
nat. gas
consumer
Wel
Pth
T
waste gas
heat
QH
QW
boiler
heat tank
Pth
VEG
nat. gas
Pth
hot water
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Mehrfamilienhaus-Siedlung mit PEM-Brennstoffzelle
n im Stromverbund
Apartment houses with power coupled PEM fuel
cells
H T
H T
H T
B
F C
B
F C
B
F C
Power
Main control Energy opt.
HT
HT
FC
B
FC
B
Nat. gas