Greenhouse supply with hydrogen technology
Hydrogen
The goal is to achieve the highest possible level of heat self-sufficiency. In this way, the complete use of natural gas in the company is substituted by a combination of hydrogen components and heat pumps.
A rough concept was developed through an analysis of the load profiles, which serves as the foundation for the project. The challenge is to efficiently connect all components with each other.
A rough concept was developed through an analysis of the load profiles, which serves as the foundation for the project. The challenge is to efficiently connect all components with each other.
Photovoltaik
- Primary energy generation via PV modules
- Energy consumption coverage
- Use of excess electricity for hydrogen production
- Enabling energy self-sufficient supply systems
Long-term hydrogen storage
- Seasonal H2 storage
- High-pressure hydrogen storage
- Cylinder bundle storage
- High pressure tank
- 30 to 700 bar
Energymanagementsystem
- Intelligent control of the hydrogen system by means of an energy management system (EMS)
- EMS as the hub of all data
- Visualization of the energy flows
- Plant optimization
- Improvement of economic efficiency & plant availability
- Intelligente Steuerung des Wasserstoffsystems mittels Energiemanagementsystem (EMS)
- EMS als Knotenpunkt aller Daten
- Visualisierung der Energieflüsse
- Anlagenoptimierung
- Verbesserung der Wirtschaftlichkeit & Anlagenverfügbarkeit
Elektrolysis
- chemical splitting of water (H2O) into hydrogen (H2) and oxygen (O)
- 2 H2O → 2 H2 + O2
- Different processes:
- PEM electrolysis
- AEM electrolysis
- AEL electrolysis
- Chlorine-alkali electrolysis
Fuelcell
- Energy conversion: Conversion of hydrogen into electrical energy
- Fuel cells with high efficiencies of up to 70%.
- no emissions: Fuel cells only generate water and heat as byproducts
- Control range: flexible control according to consumption requirements
Hydrogen condensing boiler
- 100% hydrogen condensing boiler
- Innovative building heating
- Heat supply 100% regenerative
- Easy integration into heating system by replacing the natural gas boiler
Explosion protection zone
- Establishment of an EX-protection zone
- Gas warning system
- Average fan
- automated emergency shutdown
Smart Meter
- Recording of the energy flows
- Live data acquisition
- Data processing in EMS
- Plant optimization
- Analysis of the economic efficiency & plant parameters
Hydrogen high pressure tank
- Storage of large quantities of hydrogen
- 300 bar
- application-related design
Heat pump
- Base load coverage with heat pump
- Supply via RES-E
- High efficiency
- Flexibly controllable in the overall plant system
Thermal layer storage
The storage of heat in stratified storage tanks is an important buffer to couple different heat generators into one system.
If a hydrogen system is implemented, the waste heat from electrolysis and fuel cells can be decoupled and thus fed into the heating system.
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If a hydrogen system is implemented, the waste heat from electrolysis and fuel cells can be decoupled and thus fed into the heating system.
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Control cabinets
The heart of building automation is the I&C control cabinets.
Smart connectivity
An intelligent system for controlling all relevant components in buildings.
The project comprised the engineering of a hydrogen energy system for the supply of a garden centre with numerous greenhouses and a correspondingly high energy demand. The waste heat from the electrolysis and the fuel cell can be optimally used to heat the greenhouses. The electrical energy to cover the power demand. In summer, the garden centre requires little energy and the photovoltaic system feeds the electrolysis system, which fills the hydrogen storage tank.
Filippo Figari
Projectmanager
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