Construction of an sCO 2 Joule- Brayton Cycle For High Exergy Heat - - PowerPoint PPT Presentation

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Construction of an sCO 2 Joule- Brayton Cycle For High Exergy Heat - - PowerPoint PPT Presentation

Feb 16, 2023 379 likes •568 views

2 nd International Conference on Sustainable Energy and Resource Use in Food Chains Construction of an sCO 2 Joule- Brayton Cycle For High Exergy Heat Source Conversion To Electricity Romain Loeb, Giuseppe Bianchi, Gal Levque, Arthur

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2nd International Conference on Sustainable Energy and Resource Use in Food Chains

RCUK Centre for Sustainable Energy Use in Food Chains

Construction of an sCO2 Joule- Brayton Cycle For High Exergy Heat Source Conversion To Electricity

Romain Loeb, Giuseppe Bianchi, Gaël Levêque, Arthur Leroux, Savvas A. Tassou

Brunel University London Enogia, Marseille Paphos, 18/10/2018

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RCUK Centre for Sustainable Energy Use in Food Chains

2nd International Conference on Sustainable Energy and Resource Use in Food Chains Brunel University London Enogia, Marseille

Summary

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  • The I-ThERM project
  • sCO2 scope & market
  • Cycle description
  • Compressor-Generator-Turbine (CGT) unit

Frame components - CAD & assembly CGT - CAD & assembly First test

  • Conclusion and next steps
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RCUK Centre for Sustainable Energy Use in Food Chains

2nd International Conference on Sustainable Energy and Resource Use in Food Chains Brunel University London Enogia, Marseille

I-ThERM Project aims to

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Investigate, design, build and demonstrate innovative plug and play waste heat recovery solutions to facilitate optimum utilisation of energy in selected applications with high replicability and energy recovery potential in the temperature range 70℃ – 1000℃

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RCUK Centre for Sustainable Energy Use in Food Chains

2nd International Conference on Sustainable Energy and Resource Use in Food Chains Brunel University London Enogia, Marseille

sCO 2 targeted market

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Mecheri, M. & Le Moullec, Y. Supercritical CO2 Brayton cycles for coal-fired power plants. Energy 103, 758–771 (2016).

Improve actual power generation cycles

Industrial waste heat recovery

  • Iron & steel
  • Chemical processes
  • Cement
  • Glass

…

Potential high grade energy sources at the selected range

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RCUK Centre for Sustainable Energy Use in Food Chains

2nd International Conference on Sustainable Energy and Resource Use in Food Chains Brunel University London Enogia, Marseille

Why sCO2 to power generation?

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Great compactness

Wright, S. a, Radel, R. F. Operation and Analysis of a Supercritical CO2 Brayton Cycle. SANDIA Report SAND2010-0171 (2010).

High energetic density High compressibility Clean, harmless & cheap fluid Reachable working conditions Up to 60 % efficiency Depending on the configuration

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RCUK Centre for Sustainable Energy Use in Food Chains

2nd International Conference on Sustainable Energy and Resource Use in Food Chains Brunel University London Enogia, Marseille

Thermodynamic cycle

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Isentropic CFD efficiency Turbine 70 % Compressor 76 % Cycle efficiency About 25 % 1 2 3 4

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RCUK Centre for Sustainable Energy Use in Food Chains

2nd International Conference on Sustainable Energy and Resource Use in Food Chains Brunel University London Enogia, Marseille

General overview

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Max 780 °C Heat source 20 °C Cold source

50 kWe 2.08 kg/s

Flexible Up to 830 kWth 500 kWth

Small scale installation

630 kWth

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RCUK Centre for Sustainable Energy Use in Food Chains

2nd International Conference on Sustainable Energy and Resource Use in Food Chains Brunel University London Enogia, Marseille

Brunel test rig

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RCUK Centre for Sustainable Energy Use in Food Chains

2nd International Conference on Sustainable Energy and Resource Use in Food Chains Brunel University London Enogia, Marseille

CGT Unit P&ID

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Highly integrated unit Electricity Automation Mechanic Cooling Lubrication

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RCUK Centre for Sustainable Energy Use in Food Chains

2nd International Conference on Sustainable Energy and Resource Use in Food Chains Brunel University London Enogia, Marseille

CGT Unit CAD

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RCUK Centre for Sustainable Energy Use in Food Chains

2nd International Conference on Sustainable Energy and Resource Use in Food Chains Brunel University London Enogia, Marseille

CGT CAD

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Fully instrumented Pressure resistant pipings & parts Compact

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RCUK Centre for Sustainable Energy Use in Food Chains

2nd International Conference on Sustainable Energy and Resource Use in Food Chains Brunel University London Enogia, Marseille

Mechanical CGT Design

12 Cooling Generator Rotational guidance Labyrinth seals Drain

Casing maintained via tie rods

Compressor Turbine Volute Permanent magnets Cooler Coils

  • Drain from the generator air gap to remain at a subcritical (gaseous) state
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RCUK Centre for Sustainable Energy Use in Food Chains

2nd International Conference on Sustainable Energy and Resource Use in Food Chains Brunel University London Enogia, Marseille

Skid assembly process

13 Components installation Custom welding… Strong attachement … & passivation

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RCUK Centre for Sustainable Energy Use in Food Chains

2nd International Conference on Sustainable Energy and Resource Use in Food Chains Brunel University London Enogia, Marseille

CGT assembly process

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Balancing zone 1 Balancing zone 2

Magnet hooped on the shaft Several balancing works Resistant volutes Wheels Cooler and coils…. mounted in the casing

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RCUK Centre for Sustainable Energy Use in Food Chains

2nd International Conference on Sustainable Energy and Resource Use in Food Chains Brunel University London Enogia, Marseille

First check up rotational tests

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Showed good mechanical and electrical sizing

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RCUK Centre for Sustainable Energy Use in Food Chains

2nd International Conference on Sustainable Energy and Resource Use in Food Chains Brunel University London Enogia, Marseille

Conclusion

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  • Promising efficiency and compactness compared to power generated

thanks to high rotational speed wheels & CO2 properties

  • Plug&Play philosophy ready for high grade heat sources
  • Manufacturing difficulties due to the harsh thermodynamic working

conditions, but can be lifted with off-the-shelve components

Future work

  • Finish the system assembly and automatization
  • Installation in the container at the final test bench
  • One year test campaign

March 2019 February 2020

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RCUK Centre for Sustainable Energy Use in Food Chains

2nd International Conference on Sustainable Energy and Resource Use in Food Chains Brunel University London Enogia, Marseille

Acknowledgments

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BUL team

  • Prof. Savvas A. Tassou
  • Dr. Giuseppe Bianchi
  • Dr. Samira Sayad Saravi
  • Dr. Konstantinos M. Tsamos
  • Dr. Lei Chai
  • Mr. Matteo Marchionni

Enogia team

  • Mr. Arthur Leroux
  • Mr. Romain Loeb
  • Mr. Norman Holaind
  • Mr. Nicolas Goubet
  • Mr. Gabriel Henry
  • Dr. Gael Leveque
  • Mr. Maxime Leconte

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 680599

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RCUK Centre for Sustainable Energy Use in Food Chains

2nd International Conference on Sustainable Energy and Resource Use in Food Chains Brunel University London Enogia, Marseille

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Thanks for you attention

Romain LOEB

Project Manager romain.loeb@enogia.com +33 6 88 25 87 99 19 avenue Paul Héroult 13015 Marseille Enogia