Pressure drop characteristics of soot generated by a DPG and a ...

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DPG Flow Sweep Testing504540Blown Bench MeasurementsDPG measurements at 50 CBackpressure mbar3530252015DPG measurements ambient temp10500 100 200 300 400 500 600 700Flow rate m3n/hr DPG measures backpressure vs flow up to ~ 600 m 3 /h For comparison with engine results, Reynolds number should be the same– Cold flow test at a lower flow rate than the engine!– This keeps the balance of viscous & inertial pressure drops the same.8
Previous Engine Correlation WorkT Hands et al, DEER 2007:Pressure drop vs soot load for Engine soots compared with DPG soot100Transient CycleHigh Load Steady StateDPG80Normalised Pressure drop60402000 5 10 15 20 25 30 35Total Soot (g)9 Difference between cycle & steady state engine soot Engine soot backpressure measured on engine: less accurate Other private data also shows significant variation between engines
Page 1 and 2: Pressure drop characteristics of so
Page 3 and 4: The Cambustion DPG More repeatable
Page 5 and 6: DPG Flow - Temperature CapabilitySt
Page 7: DPG Application for Dp vs Soot Mass
Page 11 and 12: Engine Details 2l Common rail Diese
Page 13 and 14: Effect 1: Backpressure ‘Relaxatio
Page 15 and 16: Backpressure reduction in multistag
Page 17 and 18: DPG soot subjected to cold start on
Page 19 and 20: Recovery of Reduced Backpressure160
Page 21 and 22: Backpressure vs Soot Load Engine &
Page 23 and 24: Further Work There is scope for fur

Pressure drop characteristics of soot generated by a DPG and a ...

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