Periodic Reporting for period 1 - Fit4Micro (Clean and efficient microCHCP by micro turbine based hybrid systems)
Berichtszeitraum: 2022-10-01 bis 2024-03-31
Around 40% of the energy consumption and 36% of emissions from energy in Europe is due to the building sector. Heating, cooling, and hot water accounting for 79% of the total energy use of EU households, off which ~75% is generated from fossil fuels. The energy demand in the European building sector is diverse, and differences in seasonal demand and local energy infrastructure complicates the transition to a sustainable sector. Therefore, flexible solutions increasing the share of renewables at household level are needed.
Fit4Micro aims to develop a flexible hybrid microCHP unit running on sustainable liquid biofuels, able to provide renewable heating, cooling and power production for demand-driven applications such as multi-family houses specially at remote and/or off-grid locations, non-residential buildings and industrial facilities requiring cooling or water as refrigerant in their processes.
Fit4Micro system is based on a double shaft micro gas turbine combined with a humidification unit. This combination will lead to electrical efficiencies >40% and flexible heat:power ratio. A high GHG emission reduction is obtained by our flameless combustor using RED2 compliant biofuels.
Fit4Micro is ideal for household buildings due to its low noise and vibration. Furthermore, its fast response time and fuel-flexible operation make it ideal for a highly efficient hybrid CHP system, resilient to changes in fuel and power markets and empowering the consumers through digital solutions. Fit4Micro can be integrated with a compression heat pump, an adsorption and a solar PV system through the DC power avoiding transmission losses; using a smart control system to enable optimal performance.
Fit4Micro enables efficient fuel distribution and off-grid operations by using sustainable liquid biofuels produced from biomass residues and organic waste streams. Fit4Micro also aims to widen the feedstock basis and lower the fuel costs by using residues as primary feedstock.
Fit4Micro aims to develop a flexible hybrid microCHP unit running on sustainable liquid biofuels, able to provide renewable heating, cooling and power production for demand-driven applications such as multi-family houses specially at remote and/or off-grid locations, non-residential buildings and industrial facilities requiring cooling or water as refrigerant in their processes.
Fit4Micro system is based on a double shaft micro gas turbine combined with a humidification unit. This combination will lead to electrical efficiencies >40% and flexible heat:power ratio. A high GHG emission reduction is obtained by our flameless combustor using RED2 compliant biofuels.
Fit4Micro is ideal for household buildings due to its low noise and vibration. Furthermore, its fast response time and fuel-flexible operation make it ideal for a highly efficient hybrid CHP system, resilient to changes in fuel and power markets and empowering the consumers through digital solutions. Fit4Micro can be integrated with a compression heat pump, an adsorption and a solar PV system through the DC power avoiding transmission losses; using a smart control system to enable optimal performance.
Fit4Micro enables efficient fuel distribution and off-grid operations by using sustainable liquid biofuels produced from biomass residues and organic waste streams. Fit4Micro also aims to widen the feedstock basis and lower the fuel costs by using residues as primary feedstock.
BTG produced reference HPO out of commercially available FPBO and supplied several HPO samples of different qualities to OWI for testing. All fuels were analyzed and characterized to understand their behavior in the IRRGT system. 2 setups have been prepared to purify FPBO from biomass residues for HPO production. Information on fuel production was supplied to AAU to initial LCA. OWI and MITIS defined the flameless combustion test campaign. Material candidates for the hot parts of the microturbines have been identified and hot corrosion exposure testing has started. Ambient combustor tests for natural gas have been performed to optimize testing conditions before using HPO fuel. Atomization tests have been performed and a new nozzle design manufactured to optimize the spray conditions. Initial CFD combustion calculation for the low pressure combustor have been carried out and will be used to optimize the combustor design.
MITIS demonstrated the operation of their in-house newly-designed bearings up to 100k rpm in hot conditions. Individual impellers of both HP and LP have been optimized to achieve ~80% isentropic efficiency. The humidified cycle design has been agreed to demonstrate the improvement of the electrical efficiency by ~2%.
4 use cases and models for system components have been defined. The toolchain for the SIMULINK modelling of the microturbine has been developed and will be used to develop the microturbine controller. Building and measurements of 2 different adsorption modules have been done as well as digital twin/model of adsorption chiller.
Key elements for the LCA have been identified and the MCM methodology is being worked out.
European policies impacting micro-CHP and hybrid heating solutions have been monitored. A questionnaire to assess market conditions and outlook for off grid micro-CHP solutions was sent to cogeneration European associations and data on current market conditions have been collected.
Fit4Micro webpage is on line with full info about the project.
MITIS demonstrated the operation of their in-house newly-designed bearings up to 100k rpm in hot conditions. Individual impellers of both HP and LP have been optimized to achieve ~80% isentropic efficiency. The humidified cycle design has been agreed to demonstrate the improvement of the electrical efficiency by ~2%.
4 use cases and models for system components have been defined. The toolchain for the SIMULINK modelling of the microturbine has been developed and will be used to develop the microturbine controller. Building and measurements of 2 different adsorption modules have been done as well as digital twin/model of adsorption chiller.
Key elements for the LCA have been identified and the MCM methodology is being worked out.
European policies impacting micro-CHP and hybrid heating solutions have been monitored. A questionnaire to assess market conditions and outlook for off grid micro-CHP solutions was sent to cogeneration European associations and data on current market conditions have been collected.
Fit4Micro webpage is on line with full info about the project.
Fit4Micro aims to reduce the use of fossil fuels for decentralized combined heat and power generation. The Fit4Micro is a sustainable hybrid system comprising: combined heat, cooling and electric power production for maximum efficient primary energy conversion; a highly efficient micro gas turbine with flexible H:P ratio with electrical efficiency > 40%; flameless combustor of bio liquid fuels to minimize emissions, (NOx < 50% of the current norm value) and use of a renewable biofuel produced from residue and waste streams.
Within this project, the integration of a mGT with a heating capacity of ~40-60 kWth with heat pumps as hybrid microCHCP system will deliver a heating efficiency between 140% to 210% depending on climate and heating conditions, representing 40% to 110% efficiency increase compared to a stand-alone boiler system. Regarding the liquid fuel combustion is well-known that flameless oxidation is a technology lowering thermal NOx and soot to marginal values, while maintaining a high thermal performance. Fit4Micro will count on an optimized flameless combustor which will reduce NOx, CO and soot below actual technologies using a widen feedstock and RED2 compliant resource for liquid biofuels. This objective will be achieved using fast pyrolysis bio-oil (FPBO) as renewable feedstock for hydrotreatment. In fact, FPBO can be further treated to get hydrotreated pyrolysis oil which are more suitable than FPBO for domestic usage, providing a good sustainable alternative. A life cycle analysis will evaluate the societal impact from environmental, socio-economic, public opinion of biobased decentralised heating, cooling and power production points of view, and will align to CL6-2021-ZEROPOLLUTION program.
Within this project, the integration of a mGT with a heating capacity of ~40-60 kWth with heat pumps as hybrid microCHCP system will deliver a heating efficiency between 140% to 210% depending on climate and heating conditions, representing 40% to 110% efficiency increase compared to a stand-alone boiler system. Regarding the liquid fuel combustion is well-known that flameless oxidation is a technology lowering thermal NOx and soot to marginal values, while maintaining a high thermal performance. Fit4Micro will count on an optimized flameless combustor which will reduce NOx, CO and soot below actual technologies using a widen feedstock and RED2 compliant resource for liquid biofuels. This objective will be achieved using fast pyrolysis bio-oil (FPBO) as renewable feedstock for hydrotreatment. In fact, FPBO can be further treated to get hydrotreated pyrolysis oil which are more suitable than FPBO for domestic usage, providing a good sustainable alternative. A life cycle analysis will evaluate the societal impact from environmental, socio-economic, public opinion of biobased decentralised heating, cooling and power production points of view, and will align to CL6-2021-ZEROPOLLUTION program.