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Dr.-Ing. Peter Seifert; DBI Gas- und Umwelttechnik GmbH; Leipzig / Freiberg; Germany

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. MITGAS Fuel Cell Project. Location: MITGAS Office Building in Gröbers

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Dr.-Ing. Peter Seifert; DBI Gas- und Umwelttechnik GmbH; Leipzig / Freiberg; Germany

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  1. 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

  2. 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

  3. Power 36% High temp. heat 10% Natural gas Low temp. heat 14% Waste gas heat 2% Remains 5% Own power consumption 5% Cooling losses 28% MITGAS: Energy balance – first year of operation

  4. 700 650 NOx 600 CO 500 500 HC 400 mg/m³dry waste gas, 5 % oxygen 300 215 200 150 100 45 45 9,3 9,6 0,1 0 TA-Luft Gas engine PC 25 C MITGAS: Reduction of emission

  5. 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

  6. Kamenz: Data of the main components

  7. Power central Solar collectors Fuel cell Kamenz: Bird’s-eye view

  8. 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

  9. Adsorption chiller (MYKOM ADR 30) 105 kW cooling capacity View into the power central (Jan. 2000) Ice storage Capacity 400 kWh Kamenz: Power central

  10. Power Fuel cell Natural gas Boilers Heat storage Heat Natural gas Solar collectors Adsorption chiller Cooling ceilings Compression chiller Ice storage Cold heat Kamenz: Main components of the project

  11. Fuel Cell Power 240 200 kW kW 220 kW Solar plant 1530 Heat kW 50 kW Ads. chiller 105 kW Cold heat Ice storage Cooling plant 35 kW Comp. chiller 80kW Kamenz: Energy distribution

  12. Kamenz: Fuel cell operating hours

  13. Kamenz: Fuel cell efficiencies

  14. Time Event 13:35 Entered I 80 - Run Grid Independent 14:15 Entered I 50 - Run Grid Connected 14:46 Entered I 80 - Run Grid Independent 15:41 Entered I 50 - Run Grid Connected Kamenz: Grid independent operation

  15. Kamenz: Effects of the ice storage (hottest days of the year)

  16. Future Opportunities • Kinds of available fuel cells • Domestic application of fuel cells

  17. 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 % > 80 % > 70 % Available: Q3 / 2001 2002 Q2 / 2002 (Field test) (Field test) (Field test) Fuel cells for domestic use

  18. House of one‘s own: Consumption and generation mismatch

  19. 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”

  20. 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

  21. Mehrfamilienhaus-Siedlung mit PEM-Brennstoffzellen im Stromverbund Apartment houses with power coupled PEM fuel cells H T B F C H T B F C H T B F C Power Main control Energy opt. HT B FC HT B FC Nat. gas

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