Best student award 12th IEA Heat Pump Conference...
Transcript of Best student award 12th IEA Heat Pump Conference...
Best student award
12th IEA Heat Pump Conference 2017
ORC driven Heat Pumps running with gas supported turbomachinery : potential and optimization
Mounier VioletteLaboratory for Applied Mechanical Design
Ecole Polytechnique Fédérale de Lausanne
6/6/20171
Why focusing research on Heat Pumps?
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Electricity driven heat pumps
Advantages
Highly efficient
Mature market
Challenges
CO2 footprint
Rising electricity demand
Why focusing research on Heat Pumps?
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Thermally driven heat pumps
Advantages
Control of the energy source
Decreased elec. demand
Main technologies
Sorption
Gas fired heat pumps
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ORC Driven Heat Pumps (HP ORC) : Exploring the potential
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Condenser C T
HP evaporator
ORC evaporatorNovelty 1
ORC driven
Novelty 2 :
Oil-free micro-turbocompressor
What is the full potential of this technology for domestic heating ?
Thermodynamics
Thermoeconomics
Heat Transfer
Turbomachineries
Rotordynamics
Design methodology
Cogeneration
Low temp sources
High efficiency
High power density
Simulation Experimental
Integrated Multi Objective Optimization
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Design point
Heat exchanger
TurbomachinesCost
Performance
FeasibilityBearings
HP-ORC
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Integrated and optimized design of the turbocompressor
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Performance Feasibility
What are the most critical components to optimize ?
How to speed up the optimization process and keeping the accuracy ?
Can we increase the design robustness ?
Integrated and optimized design of the turbocompressor
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What are the most critical components to optimize ?
How to speed up the optimization process and keeping the accuracy ?
Can we increase the design robustness ?
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Integrated and optimized design of the turbocompressor
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What are the most critical components to optimize ?
How to speed up the optimization process and keeping the accuracy ?
Can we increase the design robustness ?
Integrated and optimized design of the turbocompressor
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What are the most critical components to optimize ?
How to speed up the optimization process and keeping the accuracy ?
Can we increase the design robustness ?
Integrated and optimized thermodynamic design
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What are the optimum thermodynamic components design ?
What are the best configurations ?
Is this technology competitive with typical TDHPs ?
Performance Cost
Integrated and optimized thermodynamic design
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What are the optimum thermodynamic components design ?
What are the best configurations ?
Is this technology competitive with typical TDHPs ?
COP vs 𝛈𝐞𝐱𝐞 ?
Integrated and optimized thermodynamic design
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What are the optimum thermodynamic components design ?
What are the best configurations ?
Is this technology competitive with typical TDHPs ?
Thot = 120 ºC Thot = 180 ºC HP-ORC vs
Absorption
Integrated and optimized thermodynamic design
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What are the optimum thermodynamic components ?
What are the best configurations ?
Is this technology competitive with typical TDHPs ?
Performance Cost Feasibility
Full system optimization
Experimental validation
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Turbocompressor test bench
First proof of concept with air (Nrot > 150 krpm) Check rotordynamics models with air High-precision balancing knowledge (<1 micron)
Experimental validation
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Promising results
COP > 1.5
Qc = 40 kW
Nrot = 200 krpm
Thermal test bench
Proof of concept with R-134a Validation of turbomachineries 1D models Identification of technical challenges
Turbine 1D validation
Conclusion
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Experimental validation
Design methodology
ORC driven Heat Pump
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Micro-turbocompressor
Market
investigation
Various
applications
Optimization
Cross-disciplinary
Conclusion
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Experimental validation
Design methodology
Insert your technology here
Market
investigation
Various
applications
Optimization
Cross-disciplinary