Imperial College London conducted research into the emissions factors used to model transport derived NOx emission
Emissions Analytics’ real-world emissions inventory contains data from more than 800 passenger car tests in the UK and over 400 from the USA. This data has multiple applications from air quality investigations to automotive research and development. One utilisation of the data was a study of the relationship between vehicle kinematics and NOx emissions and how this compares to the data used in traffic modelling software.
Imperial College London conducted the research and found a variation between models using unrealistic emissions factors and measurements of real-world operation which may cause significant issues for policy makers.
Non-road mobile machinery
Academic researchers conducted field trials to determine whether EU-standard fuel to CO2 conversion factors were accurate.
The Portable Emissions Measurement System (PEMS) employed by Emissions Analytics to conduct real-world testing was developed to be robust over potholes and unmetalled surfaces and so is suitable for use in the agricultural sector.
Harper Adams University employed Emissions Analytics to test two Tier 4i-compliant tractors using PEMS, both in the field and on a dynamometer, in a project seeking to verify the EU fuel consumption to CO2 emission conversion factor.
Testing premium fuel
Tesco Petrol Filling Stations asked us to test Momentum 99 to independently verify their claims of improved performance.
Emissions Analytics was asked to provide a real-world perspective on the improvements in fuel consumption when using a premium fuel. The methodology included multiple urban cycles with steady-state running at a range of higher speeds at a test track.
For analysis, each test was broken down into multiple sub-samples to prove repeatability and assess statistical significance of the change between using Momentum 99, Tesco standard fuel and un-additised fuel.
Analysing dual-fuel trucks
Diesel HGVs were compared with diesel/CNG vehicles in a three year study. Emissions Analytics undertook a three-year trial part-funded by Innovate UK to evaluate the impact of natural gas on emissions and fuel economy. The project partners include Howard Tenens, John Lewis Partnership, CMS Supatrak and Lenham Storage.
PEMS data is recorded at a rate of one reading per second. This allows an in-depth analysis of how dual-fuel running affects emissions in order to identify when dual-fuel operation is most beneficial, for instance in urban operation or steady-state motorway driving.
Gatwick Airport review
Emissions Analytics was commissioned by Gatwick Airport to review the robustness of the air quality predictions for the UK, as presented in the Air Quality Plan from the Department for Environment, Food & Rural Affairs (Defra). The review had a particular focus on vehicle emissions, air quality in London, and the likely effects of Real Driving Emissions (RDE) regulations.
The report looked at the changing regulatory environment, how vehicle technology is adapting to new regulations, the accuracy and representativeness of official emissions data, the effect of unregulated emissions and the role of emissions hot-spots in air quality compliance.
In addition, Emissions Analytics was commissioned to conduct specific on-road testing around Heathrow and Gatwick in order to validate the real-world level of emissions from Euro 6 diesel cars in these locations.
Emissions Analytics contributed to a review of Defra’s Air Quality Plan on behalf of Gatwick Airport.
missions Analytics used its expertise to present a comprehensive summary of the current situation, making use of its database of real-world emissions tests to evidence its findings and draw it all together in a detailed yet readable report.
“Working to a challenging programme Emissions Analytics was able to quickly produce a high quality report for us, drawing on their vast experience of real-world vehicle emissions testing. This proved to be invaluable in supporting evidence we presented to the Government on the soundness of predictions in the UK Air Quality Plan.”
Rob Matthews, Planning Advisor, Gatwick Airport Ltd.
Construction equipment testing
Working with King’s College London to develop an emissions inventory for the construction industry.