Colruyt: Intelligent Leak Detection for HFC Cooling Installations
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This document discusses intelligent leak detection for HFC cooling installations. It notes that leakage of HFC refrigerants accounts for 10% of the company's CO2 emissions. It describes how the company installed level transmitters in receivers to monitor fluctuations and detect leaks, which allows them to discover leaks much faster and avoid more refrigerant from leaking. One year after deploying this system across 58 installations, it helped avoid 2,800 tons of CO2 emissions, reducing the company's total emissions by 2.5%.
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Colruyt: Intelligent Leak Detection for HFC Cooling Installations
- 1. 1
- 2. Intelligent Leak Detection for HFC Cooling Installations Margo Parmentier
- 3. 3 Cooling @ Colruyt Group
- 4. 4 Cooling @ Colruyt Group >50engineers >20cooling technicians
- 5. 5 #4. #7. Source: Project Drawdown HFC Natural Refrigerant Sustainable cooling can curb climate change
- 6. 6 How does an HFC cooling installation work? exchange cold exchange heat
- 7. 7 Cooling @ Colruyt Group
- 8. 8 HFCs are very carbon-intensive Refrigerant GWP CO2 1 R507A 4775 R290 (propane) 0.02 > 200 shops
- 9. 9 Leakage of HFC refrigerants accounts for 10% of Colruyt Group’s total CO2 emissions in 2020
- 10. 10 How does an HFC cooling installation work? exchange cold exchange heat
- 11. 11 Why do we even need this receiver? LS LS
- 12. 12 The receiver is the key to detect a leak! LS RECEIVER LS
- 13. 13 LS LS LT We installed a level transmitter in OKay Huizingen to monitor the natural fluctuations
- 14. 14 Almost all other locations only have the 2 level switches LS LS
- 15. 15 y Electricity consumption Outside temperature HFC level in receiver Wind speed Opening hours Defrost timing X
- 17. 17 When an anomaly is detected, we send an alarm to the maintenance department
- 18. 18 Sending a technician to look for an actual leak is difficult and expensive
- 19. 19 This is what the first detected leak looked like on paper in Colruyt Zottegem in October 2020 Relative level in the receiver Time [per hour]
- 20. 20 …and the second leak in Colruyt Haaltert a few days later Time [per hour] Relative level in the receiver Inspection glass level
- 21. 21 This is what the leak in Colruyt Zottegem looked like in real life
- 22. 22 We are able to discover leaks much faster than before! 12 leaks detected since October 2020 9% leaks away before a technician fixes the leak with our detection system 19% leaked away before a technician fixes the leak before we deployed our detection system
- 23. 23 One year after the first leak detection: 58 installations monitored 2800 tons CO2 equivalent avoided in 2021 compared to 2020 2.5% of Colruyt Group’s total emissions
- 24. 24 Thank you!