Characterization of field-aged exhaust gas recirculation cooler using Neutron tomography

Hydrocarbon condensation plays a pivotal role in EGR fouling and will affect clogging, densification, heat transfer, mud-cracking and adhesion. Neutron imaging is very useful for non-destructively observing cooler clogging where large amounts of HC-rich deposits are present. Information obtained from these images may provide improved design rules for internal heat exchanger geometries that would reduce clogging. A new project funded by the US Army (partnering with Modine) has just started which will focus on the effects of internal heat exchanger geometry on fouling. We are seeking letters of support from industry for VENUS (Versatile Neutron Imaging Instrument at SNS [Spallation Neutron Source]).