The AAC – Classify particles from 25 nm to 5 μm+ without charging them

Date: 
Friday, June 5, 2020 - 08:00 to 09:00 BST, Europe/London
Overview: 
The Aerodynamic Aerosol Classifier (AAC) selects particles over a very wide size range by aerodynamic diameter for further online analysis, including, but not limited to counting (CPCs), chemical speciation (mass spectrometers or GC), in vitro and in vivo studies & instrument calibration. The AAC can also now produce a size spectrum by scanning when connected to a CPC. Unlike the DMA (differential mobility analyser), used for similar purposes in the past, the AAC does not involve particle charging in its measurement technique, so is not subject to multiple charging artefacts. It also suitable for classifying much larger particles than is possible with a DMA. In this webinar Dr Jon Symonds covers the principle of the AAC, before describing a number of applications, in the fields of atmospheric science, morphology determination, filtration and size-based calibration of other instruments (such as optical particle counters and CPCs).

The AAC – Classify particles from 25 nm to 5 μm+ without charging them

Date: 
Thursday, June 4, 2020 - 15:00 to 16:00 BST, Europe/London
Overview: 
The Aerodynamic Aerosol Classifier (AAC) selects particles over a very wide size range by aerodynamic diameter for further online analysis, including, but not limited to counting (CPCs), chemical speciation (mass spectrometers or GC), in vitro and in vivo studies & instrument calibration. The AAC can also now produce a size spectrum by scanning when connected to a CPC. Unlike the DMA (differential mobility analyser), used for similar purposes in the past, the AAC does not involve particle charging in its measurement technique, so is not subject to multiple charging artefacts. It also suitable for classifying much larger particles than is possible with a DMA. In this webinar Dr Jon Symonds covers the principle of the AAC, before describing a number of applications, in the fields of atmospheric science, morphology determination, filtration and size-based calibration of other instruments (such as optical particle counters and CPCs).

Cambustion DPG: the Automated DPF and GPF Testing System

Date: 
Thursday, May 28, 2020 - 15:00 to 16:00 BST, Europe/London
Overview: 
The Cambustion DPG is a system for the complete automated testing of Diesel and Gasoline Particulate Filters. Based around a Diesel burner and accurate flow bench, the DPG facilitates testing of GPFs and Light, Medium and Heavy Duty DPFs at full scale flows and temperatures, with the capability to load soot, regenerate the filter and conduct flow tests. The DPG is used in both Quality Assurance testing and for R&D applications.

The New CSA: The Fastest Response Measurements of Engine Solid Particle Size, Number and Mass Emissions (above or below 23 nm)

Date: 
Friday, May 22, 2020 - 08:00 to 08:45 BST, Europe/London
Overview: 
Pinpoint exactly where in the cycle where your solid particle emission problems are... The new Catalytic Stripper Accessory for the DMS500 Fast Particle Sizer provides a simple means to convert new and existing DMS systems to measure only the solid particles from engines legislated for in Euro 6 and beyond. The CSA removes volatile and semi-volatile particles, using a minimal total dilution factor of just 5, giving vital sensitivity for post DPF and GFP measurements. Crucially, the entire system of 7 m sample line, CSA & DMS (with dilution) has a time response (T90-10%) of just 300 ms (with 10 Hz data), making the system the ideal tool for research and calibration optimisation. Losses of the solid particles are kept to a minimum, and can be automatically corrected for in real-time. As the system returns the whole particle size spectrum from 5 nm to 1 micron, it can be used to study the sub-23 nm particles, which are proposed to be legislated for in the forthcoming Euro 7 (or possibly 6E) legislation. In this webinar, Dr Jon Symonds gives a detailed introduction to the whole system, and presents validation and engine data.

The New CSA: The Fastest Response Measurements of Engine Solid Particle Size, Number and Mass Emissions (above or below 23 nm)

Date: 
Thursday, May 21, 2020 - 15:00 to 15:45 BST, Europe/London
Overview: 
Pinpoint exactly where in the cycle where your solid particle emission problems are... The new Catalytic Stripper Accessory for the DMS500 Fast Particle Sizer provides a simple means to convert new and existing DMS systems to measure only the solid particles from engines legislated for in Euro 6 and beyond. The CSA removes volatile and semi-volatile particles, using a minimal total dilution factor of just 5, giving vital sensitivity for post DPF and GFP measurements. Crucially, the entire system of 7 m sample line, CSA & DMS (with dilution) has a time response (T90-10%) of just 300 ms (with 10 Hz data), making the system the ideal tool for research and calibration optimisation. Losses of the solid particles are kept to a minimum, and can be automatically corrected for in real-time. As the system returns the whole particle size spectrum from 5 nm to 1 micron, it can be used to study the sub-23 nm particles, which are proposed to be legislated for in the forthcoming Euro 7 legislation. In this webinar, Dr Jon Symonds gives a detailed introduction to the whole system, and presents validation and engine data.