1 / 10

Volvo test plans

Volvo test plans. Euro I D-1 EN590 1500 ppm S D-4 EN590 8 ppm S D-5 Swedish Class 1 Stationary (ESC) Transient (ETC) Euro III D-2 EN590 300 ppm S D-4 EN590 8 ppm S D-5 Swedish Class 1 Stationary (ESC) Transient (ETC)

kato-haley
Download Presentation

Volvo test plans

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Volvo test plans • Euro I D-1 EN590 1500 ppm S D-4 EN590 8 ppm SD-5 Swedish Class 1 Stationary (ESC)Transient (ETC) • Euro III D-2 EN590 300 ppm S D-4 EN590 8 ppm SD-5 Swedish Class 1 Stationary (ESC)Transient (ETC) • Study the influence of CRT-based filter technology on particle emissions from an Euro III engine. Swedish Class 1 fuel (D-5) and two driving cycles (ESC and ETC) will be used. Fuel D-4 will also be tested if budget allows once the final sampling and testing protocol has been defined by WP-300.

  2. Volvo test performed during 2002 Euro III D-2 EN590 300 ppm S D-4 EN590 8 ppm SD-5 Swedish Class 1 Stationary (ESC)Transient (ETC)Five steady states

  3. Problems and uncertainty factors. • Problem with primary dilutor – required modification as per Dekati drawing. • Water cooling of the primary diluter caused the temperature control to be difficult. • CPC required a very high dilution factor (11 250). • Pressure-spikes in the beginning of the measurement period due to air dryer. • 2 different ELPI’s were used – results do not correlate. • Dilution factor during SS points not stable – reduced as exh. temperature reduced.

  4. Problem with fixing dilution factor: A

  5. Problem with fixing dilution factor: B • This was not initially noticed or known to be a problem. • In initial tests the primary dilution factor dropped to below 8. • A very long stabilization time was required to prevent this with subsequent testing. • As exhaust temperature drops, density increases causing a greater mass of gas to be drawn into the diluter since it is based on volume flows.

More Related