1. Date of download: 6/2/2016 Copyright © ASME. All rights reserved. From: Comparison of Filter Smoke Number and Elemental Carbon Mass From Partially Premixed Low Temperature Combustion in a Direct-Injection Diesel Engine J. Eng. Gas Turbines Power. 2011;133(10):102804-102804-6. doi:10.1115/1.4002918 Diagram of filter smoke meter location and partial dilution tunnel sampling system where EC filter samples were loaded Figure Legend:

2. Date of download: 6/2/2016 Copyright © ASME. All rights reserved. From: Comparison of Filter Smoke Number and Elemental Carbon Mass From Partially Premixed Low Temperature Combustion in a Direct-Injection Diesel Engine J. Eng. Gas Turbines Power. 2011;133(10):102804-102804-6. doi:10.1115/1.4002918 Rate of heat release and injector current signal for two conditions tested in this study: conventional combustion at 1500 rpm, 600 kPa BMEP, diesel fuel, and 27% EGR and LTC at 1500 rpm, 400 kPa BMEP, diesel fuel, and 45% EGR Figure Legend:

3. Date of download: 6/2/2016 Copyright © ASME. All rights reserved. From: Comparison of Filter Smoke Number and Elemental Carbon Mass From Partially Premixed Low Temperature Combustion in a Direct-Injection Diesel Engine J. Eng. Gas Turbines Power. 2011;133(10):102804-102804-6. doi:10.1115/1.4002918 Filter smoke number versus emissions index of NOx for all conditions and fuels Figure Legend:

4. Date of download: 6/2/2016 Copyright © ASME. All rights reserved. From: Comparison of Filter Smoke Number and Elemental Carbon Mass From Partially Premixed Low Temperature Combustion in a Direct-Injection Diesel Engine J. Eng. Gas Turbines Power. 2011;133(10):102804-102804-6. doi:10.1115/1.4002918 Concentration of elemental carbon in the exhaust for biodiesel blends in conventional versus LTC operation Figure Legend:

5. Date of download: 6/2/2016 Copyright © ASME. All rights reserved. From: Comparison of Filter Smoke Number and Elemental Carbon Mass From Partially Premixed Low Temperature Combustion in a Direct-Injection Diesel Engine J. Eng. Gas Turbines Power. 2011;133(10):102804-102804-6. doi:10.1115/1.4002918 Smoke mass concentration in exhaust versus FSN for four literature correlations over entire practical range of FSN Figure Legend:

6. Date of download: 6/2/2016 Copyright © ASME. All rights reserved. From: Comparison of Filter Smoke Number and Elemental Carbon Mass From Partially Premixed Low Temperature Combustion in a Direct-Injection Diesel Engine J. Eng. Gas Turbines Power. 2011;133(10):102804-102804-6. doi:10.1115/1.4002918 Smoke mass concentration versus FSN, comparing four literature correlations with the data recorded in this study Figure Legend:

7. Date of download: 6/2/2016 Copyright © ASME. All rights reserved. From: Comparison of Filter Smoke Number and Elemental Carbon Mass From Partially Premixed Low Temperature Combustion in a Direct-Injection Diesel Engine J. Eng. Gas Turbines Power. 2011;133(10):102804-102804-6. doi:10.1115/1.4002918 Linear trend for EC concentration versus soot concentration based on the correlation of Christian for all data taken in this study Figure Legend: