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Bio-HyPP - Biogas-fired Combined Hybrid Heat and Power Plant
WHY is Bio-HyPP unique ?
The Bio-HyPP power plant is a combined heat and power (CHP)system using biogas. The Bio-HyPP concept is based on a hybridpower plant - a combination of solid oxide fuel cells (SOFC) anda micro gas turbine (MGT). The project aims at developing afull-scale technology demonstrator with an electric power output of 30 kW.
The Bio-HyPP project has received funding from the European Union’s Horizon 2020 research and innovation programme under Grant Agreement No 641073
WHAT is Bio-HyPP
The technology has the potential to achieve the highest electric efficiency while achieving high load and fuel flexibility at lowest emissions.
Context and Future Challenges
Melanie HerbstDeutsches Zentrum für Luft-und Raumfahrt e.V. (DLR)Pfaffenwaldring 38-4070569 Stuttgart, Germanywww.dlr.de
Start date: 1st June 2015 End date: 31st May 2019
Project Coordinator Project Partners
www.bio-hypp.euinfo@bio-hypp.eu
Project Information
Electrical efficiency of the SOFC/MGT hybrid power plant concept compared to other power
plant concepts
Air Biogas
Heat
Micro GasTurbine
Solid OxideFuel Cells
Hybrid Power Plant
HeatPower
System Integration andDemonstration
Fuel Flexible Combustion System
Efficient Turbochargers for Wide Operation Range
Cost Effective High Temperature Recuperator
Emergency and Instability Avoidance
Power Conversion Optimisation
Thermodynamic Performance Modelling
Market Analysis and Economic Feasibility
Pressurized SOFC-System Characterisation
Fuel Cell Degradation
Life Cycle Assessmentand Life Cycle Cost
• High primary energy consumption
• Waste of thermal energy on biogas production sites
• High amount of volatile renewable energy sources
• Wide range of biogas compositions & quality
• Progressing climate change
• Air pollution caused by power production
• Electrical efficiency > 60%• Total efficiency > 90%• Power to heat ratio > 2• Primary energy
savings > 50 %
Today’s Situation CHP Challenges Bio-Hypp Objectives
Scientific Tasks
• Operational flexibility (25% to 100% el. power)
• Fuel flexibility: all types of biogas & natural gas
• CO2 neutral• Low emissions:
NOx < 10 ppm CO < 20 ppm UHC < 1 ppm
• Reduction of the CO2 footprint
• Reduction of harmful emissions
• Increase of operational flexibility (load & fuel)
• Energy production driven by demand of electricity
• Increase of electric efficiency
• Increase of ratio between electrical power and heat
effic
ient
flexi
ble
clea
n
HOW does it work ?
Block diagram of the Hybrid Power Plant concept
• The MGT compressor (1) pressurizes the air. • The pressurized air is then preheated by the MGT exhaust gas in the recuperator (2).• The pressurized and preheated air is used for thermal management and air supply of the SOFC (3).• The biogas is first conditioned and then oxidised in the SOFC producing electrical power.• The remaining fuel downstream of the SOFC is burned in a combustion chamber (4).• The burned gas expands in the turbine (5) which produces additional electricity using a generator.• The remaining heat can be used for heating or process heat & steam purposes (6).
Combined ControlStrategy
highly efficient
flexible
clean
The pressurized and preheated air increases the power
density and efficiency of the SOFC, significantly reducing the number of SOFC stacks needed for the given power output.
The generator of the MGT produces additional electrical power without using extra fuel.
Realizing this concept would validate the great potential of the hybrid power plant as a highly efficient, flexible and energy-sustainable source of heat and electrical power.
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