Application of a methodology to assess the performance of a full-scale diesel oxidation catalyst during cold and hot start NEDC drive cycles

Kevin Robinson, Shifei Ye, Yeow Yap, Stan Kolaczkowski

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

An experimental technique is demonstrated, in which the spatial variations of temperature inside a diesel oxidation catalyst (DOC) can be measured during an NEDC drive cycle. This leads to the development of a methodology which enables more scientific measurements to be performed on such a catalyst when it is connected to a live diesel engine. During hot and cold start NEDC drive cycles, measurements were performed on a Pt on alumina DOC connected to a Ford 2.0 litre diesel engine. Under these transient conditions, emission data was gathered (pre- and post-DOC), and this was also translated into cumulative emissions over the drive cycles. In addition, valuable data was gathered on the spatial temperature variations in the DOC during such a drive cycle and it is shown how, under certain conditions, the temperatures start to increase at the back-end of the catalyst and then move towards the front. This data, in combination with other measurements, helps to understand the performance of the DOC and can also be used to test the robustness of mathematical models of such systems.
Original languageEnglish
Pages (from-to)1292-1306
Number of pages15
JournalChemical Engineering Research & Design
Volume91
Issue number7
Early online date5 Mar 2013
DOIs
Publication statusPublished - Jul 2013

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Oxidation
Catalysts
Diesel engines
Aluminum Oxide
Temperature
Alumina
Mathematical models

Cite this

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title = "Application of a methodology to assess the performance of a full-scale diesel oxidation catalyst during cold and hot start NEDC drive cycles",
abstract = "An experimental technique is demonstrated, in which the spatial variations of temperature inside a diesel oxidation catalyst (DOC) can be measured during an NEDC drive cycle. This leads to the development of a methodology which enables more scientific measurements to be performed on such a catalyst when it is connected to a live diesel engine. During hot and cold start NEDC drive cycles, measurements were performed on a Pt on alumina DOC connected to a Ford 2.0 litre diesel engine. Under these transient conditions, emission data was gathered (pre- and post-DOC), and this was also translated into cumulative emissions over the drive cycles. In addition, valuable data was gathered on the spatial temperature variations in the DOC during such a drive cycle and it is shown how, under certain conditions, the temperatures start to increase at the back-end of the catalyst and then move towards the front. This data, in combination with other measurements, helps to understand the performance of the DOC and can also be used to test the robustness of mathematical models of such systems.",
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