Results of our research collaborations on emissions and exhaust aftertreatment (EAT) systems in Diesel and Gasoline engines have been published in two research papers.

The first paper involves researchers from the University of Cambridge, CARES, Nanyang Technological University in Singapore, University of Windsor, and Shell Centre and focuses on the effects of Exhaust Aftertreatment (EAT) configuration in diesel engines calculations.

In the research, a numerical model with rigorous treatment of the catalytic chemistry is proposed and the configuration of individual devices in EAT system of a diesel are investigated. The target EAT system is composed of a Diesel Oxidation Catalyst (DOC), an ammonia-based Selective Catalytic Reduction (NH3-SCR) device and a Diesel Particulate Filter (DPF).

Through thorough investigations, the performance of various EAT designs have been studies across a wide range of engine operating conditions, and our flux analysis tool is also being leveraged to assess the detailed chemical interactions in the system. Read more here.

The second paper is a result of collaborations within the H2020 project PEMs4Nano dealing with transient measurement and modelling of engine-out particle size distributions down to 10nm in size. The paper received research contributions from University of Cambridge, University of Lille, TSI GmbH and HORIBA.

The research was focused on development of a reliable, portable measurement system for particle number to be used on an on-road gasoline-fuelled vehicle under real driving conditions. Both experimental characterisation and extensive physics-based modelling were performed in this research, leading to development of state-of-the-art models and measurement systems for particles of down to 10 nm in size. As a part of this research, CMCL has applied its high-fidelity particle size distribution models, available via SRM Engine Suite toolkit.

Access the paper here.