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Table 2

The level of leakage that may technically occur in the pilot region according to the FAVAD equation

ComponentsSymbolValueUnit
System pressure before pressure management AZNP0 91 
System pressure after pressure management AZNP1 31 
Night–Day Factor (NDF) before pressure management NDF0 22.5 hour/day 
Night–Day Factor (NDF) after pressure management NDF1 23.8 hour/day 
Total leakage level before pressure management Lo 6.67 l/s 
Total leakage level after pressure management L1 1.33 l/s 
Change in total leakage level ΔL 5.34 l/s 
Rate of change in total leakage level ΔL 80.1 
Potential recoverable leak level before pressure management Potential Lo 4.29 l/s 
Potential recoverable leak level after pressure management Potential L1 0.77 l/s 
Change in recoverable leakage level ΔL(Potential) 3.52 l/s 
Rate of change in recoverable leakage level ΔL(Potential) 82.1 
Water saved by total leakage level (daily)  118.5 m3 
Water saved by total leakage level (monthly)  3,555.3 m3 
Water saved by total leakage level (annual)  43,256.7 m3 
Water saved by recoverable leakage level (daily)  78.3 m3 
Water saved by recoverable leakage level (monthly)  2,348.7 m3 
Water saved by recoverable leakage level (annual)  28,575.7 m3 
ComponentsSymbolValueUnit
System pressure before pressure management AZNP0 91 
System pressure after pressure management AZNP1 31 
Night–Day Factor (NDF) before pressure management NDF0 22.5 hour/day 
Night–Day Factor (NDF) after pressure management NDF1 23.8 hour/day 
Total leakage level before pressure management Lo 6.67 l/s 
Total leakage level after pressure management L1 1.33 l/s 
Change in total leakage level ΔL 5.34 l/s 
Rate of change in total leakage level ΔL 80.1 
Potential recoverable leak level before pressure management Potential Lo 4.29 l/s 
Potential recoverable leak level after pressure management Potential L1 0.77 l/s 
Change in recoverable leakage level ΔL(Potential) 3.52 l/s 
Rate of change in recoverable leakage level ΔL(Potential) 82.1 
Water saved by total leakage level (daily)  118.5 m3 
Water saved by total leakage level (monthly)  3,555.3 m3 
Water saved by total leakage level (annual)  43,256.7 m3 
Water saved by recoverable leakage level (daily)  78.3 m3 
Water saved by recoverable leakage level (monthly)  2,348.7 m3 
Water saved by recoverable leakage level (annual)  28,575.7 m3 
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