Investigation of Aldehyde and VOC Emissions during Cold Start and Hot Engine Operations using 100% Biofuels for a DI Engine

2009-01-1515

04/20/2009

Event
SAE World Congress & Exhibition
Authors Abstract
Content
Aldehydes and other Volatile Organic compounds (VOC) are assessed under cold start and steady state conditions using a Perkins Phaser 6 litre diesel engine. A comparison is made between petroleum diesel fuel (PD), 100% biodiesel (WME) and 100% rapeseed oil (RSO). A Temet FTIR was used to determine aldehydes including formaldehyde, acetaldehyde and acrolein. The diesel engine was cold started at room temperature using a step start up procedure that kept the power output constant at two steady state conditions: 23kW and 47kW. Very little difference was observed between petroleum diesel and biodiesel aldehyde emissions at either steady state conditions or during cold start. There was, however, an increase in aldehydes at steady state for rapeseed oil, particularly at low load, but only for from ∼10ppm to 25 ppm for formaldehyde (i.e. 0.12g/kWh to 0.37g/kWh). During cold start conditions, the emissions were significantly higher for rapeseed oil than for petroleum diesel. Other volatile organic compounds investigated included hydrogen cyanide, acetylene, formic acid and iso-butene. The influence of the oxidation catalyst on these speciated compounds was also determined.
Meta TagsDetails
DOI
https://doi.org/10.4271/2009-01-1515
Pages
11
Citation
Lea-Langton, A., Li, H., and Andrews, G., "Investigation of Aldehyde and VOC Emissions during Cold Start and Hot Engine Operations using 100% Biofuels for a DI Engine," SAE Technical Paper 2009-01-1515, 2009, https://doi.org/10.4271/2009-01-1515.
Additional Details
Publisher
Published
Apr 20, 2009
Product Code
2009-01-1515
Content Type
Technical Paper
Language
English