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An Experimental Investigation on Low Temperature CDPF Regeneration Utilizing Hydrogen
Technical Paper
2013-01-0052
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Soot particles accumulated in a DPF should be removed after a certain service time due to high pressure drop. The most common method is oxygen active regeneration which sometimes DPF cracking or melting. In this study, the authors aim to investigate the low temperature regeneration with hydrogen, which could prolong the DPF lifespan and facilitate CDPF regeneration efficiency. The DPF used in this research was coated with Pt/Al₂O₃ 25 g/ft₃ and all experiments were performed on engine test bench. Results showed that DPF regeneration can be realized at about 150°C or even lower. During regeneration, the inside temperature at front part (about 20 mm) of DPF was about 40°C higher than the other parts during regeneration. The maximum inside temperatures during regeneration depend only on the hydrogen concentration and soot oxidation can be calculated simply from the Arrhenius equation using the experimental temperatures.
Topic
Citation
Liu, Z., Chun, K., and Song, S., "An Experimental Investigation on Low Temperature CDPF Regeneration Utilizing Hydrogen," SAE Technical Paper 2013-01-0052, 2013, https://doi.org/10.4271/2013-01-0052.Also In
References
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