An experimental investigation on low temperature CDPF regeneration utilizing hydrogen

Zhijin Liu; Kwangmin Chun; Soonho Song

doi:10.4271/2013-01-0052

An experimental investigation on low temperature CDPF regeneration utilizing hydrogen

Zhijin Liu, Kwangmin Chun, Soonho Song

Department of Mechanical Engineering

Research output: Contribution to journal › Conference article

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 25g/ft ³ 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 20mm) 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.

Original language	English
Journal	SAE Technical Papers
Volume	1
DOIs	https://doi.org/10.4271/2013-01-0052
Publication status	Published - 2013
Event	17th Asia Pacific Automotive Engineering Conference, APAC 2013 - Bangkok, Thailand Duration: 2013 Apr 1 → 2013 Apr 3

All Science Journal Classification (ASJC) codes

Automotive Engineering
Safety, Risk, Reliability and Quality
Pollution
Industrial and Manufacturing Engineering

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10.4271/2013-01-0052

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Liu, Z., Chun, K., & Song, S. (2013). An experimental investigation on low temperature CDPF regeneration utilizing hydrogen. SAE Technical Papers, 1. https://doi.org/10.4271/2013-01-0052

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title = "An experimental investigation on low temperature CDPF regeneration utilizing hydrogen",

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 25g/ft 3 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 20mm) 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.",

author = "Zhijin Liu and Kwangmin Chun and Soonho Song",

year = "2013",

doi = "10.4271/2013-01-0052",

language = "English",

volume = "1",

journal = "SAE Technical Papers",

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note = "17th Asia Pacific Automotive Engineering Conference, APAC 2013 ; Conference date: 01-04-2013 Through 03-04-2013",

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AU - Liu, Zhijin

AU - Chun, Kwangmin

AU - Song, Soonho

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AB - 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 25g/ft 3 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 20mm) 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.

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