Browse Publications Technical Papers 2000-01-2975
2000-10-16

Running Light-Duty DI Diesel Engines with Wood Pyrolysis Oil 2000-01-2975

This paper reports on the first successful tests performed on a production D.I. Diesel engine using wood pyrolysis oil (WPO). As reported in literature, any attempt to directly replace Diesel fuel with WPO required extensive modifications to the engine injection system, in order to overcome the intrinsic limits of the oil (poor self-ignition, high acidity and viscosity): new materials, additional pilot injection systems, careful procedures of start-up and shutdown were needed to obtain acceptable operation. Aim of the present work was to assess the limits of utilization of WPO in a strictly stock engine. Therefore, while no modifications at all were carried out on the engine, the efforts were addressed to make the WPO compatible with light-duty Diesel engines. Several long-running tests were performed on a single-cylinder engine, with:
  • blends of WPO with different percentage of oxygenated compounds
  • micro-emulsions of WPO in Diesel fuel
  • standard (commercial) Diesel fuel.
Reliable operation was achieved with percentages as high as 44.1% of WPO in Dyglime (Diethylene glycol dimethyl ether). Similar results were obtained with two different emulsions with 30% of WPO in No.2 Diesel fuel. While residuals were occasionally found to stick on the nozzle stem and sac, no trace of corrosion was detected in the injection system. Detailed analysis of the pressure cycles and emission profiles have been carried out, highlighting the feasibility of an immediate utilization of WPO in D.I. engines.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Feasibility of Using Wood Flash-Pyrolysis Oil in Diesel Engines

982529

View Details

TECHNICAL PAPER

Diesel Engines Fueled by Wood Pyrolysis Oil: Feasibility and Perspectives

2001-24-0041

View Details

TECHNICAL PAPER

Fuel Properties and Chemical Compositions of Bio-Oils from Biomass Pyrolysis

2007-01-2024

View Details

X