IMC-based diesel oxidation catalyst outlet temperature control with extended state predictor observer

Diesel oxidation catalyst outlet temperature control is crucial for heat management to realize diesel particulate filter active regenerative control. In order to control the temperature of the active regeneration process in the filter, the temperature response process of the semi-physical oxidation catalyst model structure is proposed as a multi-stage inertia plus delay, and the equivalent inlet temperature step of the fuel oxidation reaction of the exhaust pipe. Combined with the test test, the control oriented oxidation catalyst model is established.A control-oriented oxidation catalyst model was constructed. By analysed the oxidation catalyst working process, the main chemical reactions, heat and mass transfer processes occurring inside the carrier were analyzed. Three-dimensional CFD model and one-dimensional chemical reaction kinetics model were established respectively. The radial and axial temperature distribution of the carrier was analyzed by model simulation. Based on the analysis of the system characteristics, the multi-step inertia plus delay semi-physical model structure was proposed. Combined with the test, the control oriented oxidation catalyst model is established. Select the appropriate working conditions to identify and verify the model parameters. The results show that the third order model can well indicate the temperature response characteristics of the oxidation catalyst outlet temperature. Considering the complexity of the system, the first-order and third-order model are selected as the basis of the control system design.

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Motion planning for a Diesel Oxidation Catalyst outlet temperature

2008 American Control Conference ◽

10.1109/acc.2008.4586801 ◽

2008 ◽

Cited By ~ 9

Author(s):

Olivier Lepreux ◽

Yann Creff ◽

Nicolas Petit

Keyword(s):

Motion Planning ◽

Diesel Oxidation Catalyst ◽

Oxidation Catalyst ◽

Outlet Temperature ◽

Diesel Oxidation

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Practical Achievable Performance in Diesel Oxidation Catalyst Temperature Control

Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles ◽

10.2516/ogst/2011115 ◽

2011 ◽

Vol 66 (4) ◽

pp. 693-704 ◽

Cited By ~ 3

Author(s):

O. Lepreux ◽

Y. Creff ◽

N. Petit

Keyword(s):

Temperature Control ◽

Diesel Oxidation Catalyst ◽

Oxidation Catalyst ◽

Diesel Oxidation ◽

Catalyst Temperature

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The effect of biodiesel on activity of diesel oxidation catalyst and selective catalytic reduction catalysts in diesel engine

Renewable and Sustainable Energy Reviews ◽

10.1016/j.rser.2021.111286 ◽

2021 ◽

Vol 148 ◽

pp. 111286

Author(s):

Ibrahim Aslan Resitoglu

Keyword(s):

Diesel Engine ◽

Selective Catalytic Reduction ◽

Catalytic Reduction ◽

Diesel Oxidation Catalyst ◽

Oxidation Catalyst ◽

Diesel Oxidation ◽

Reduction Catalysts

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Development of a Low Emissions Upgrade Kit for EMD GP20D and GP15D Locomotives

ASME 2012 Internal Combustion Engine Division Fall Technical Conference ◽

10.1115/icef2012-92128 ◽

2012 ◽

Author(s):

Steven G. Fritz ◽

John C. Hedrick ◽

Tom Weidemann

Keyword(s):

Fuel Injection ◽

Diesel Oxidation Catalyst ◽

Oxidation Catalyst ◽

Particulate Filter ◽

Injection Timing ◽

Fuel Injection Timing ◽

Tier 1 ◽

Emission Regulations ◽

Diesel Oxidation ◽

Tier 3

This paper describes the development of a low emissions upgrade kit for EMD GP20D and GP15D locomotives. These locomotives were originally manufactured in 2001, and met EPA Tier 1 locomotive emission regulations. The 1,491 kW (2,000 HP) EMD GP20D locomotives are powered by Caterpillar 3516B engines, and the 1,119 kW (1,500 HP) EMD GP15D locomotives are powered by Caterpillar 3512B engines. CIT Rail owns a fleet of 50 of these locomotives that are approaching their mid-life before first overhaul. Baseline exhaust emissions testing was followed by a low emissions retrofit development focusing on fuel injection timing, crankcase ventilation filtration, and application of a diesel oxidation catalyst (DOC), and then later a diesel particulate filter (DPF). The result was a EPA Tier 0+ certification of the low emissions upgrade kit, with emission levels below EPA Line-Haul Tier 3 NOx, and Tier 4 HC, CO, and PM levels.

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