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Modified Fuels for Diesel Engines by Application of Unstabilized Emulsions
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English
Abstract
An in-fuel-line mechanical emulsification has been developed at Ontario Research (the ORF HydroShear) which is compatible with installation in the fuel system of both light duty and heavy duty diesel engines. The HydroShear has been used to prepare both water/diesel and methanol/diesel emulsions having particle sizes of a few microns and with sufficient stability to be used in unstabilized form in the fuel management system of diesel engines. The installation of the HydroShear on 97 and 149 kW diesel engines is described, together with its mode of operation.
A comparative study of water/diesel fuel emulsions applied to both two and four stroke cycle diesel engines has shown exhaust emissions and engine performance to be sensitive to the general engine design employed. Greatest benefits were achieved with the four-stroke engine. Particulate and NOx emissions were reduced by up to 50%.
Testing HydroShear capability to fuel engines with methanol/diesel emulsions has indicated that methanol can be used as a diesel fuel extender with this technique. Total particulate emissions were reduced 50%, with carbon black being reduced by 75%.
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Citation
Lawson, A. and Last, A., "Modified Fuels for Diesel Engines by Application of Unstabilized Emulsions," SAE Technical Paper 790925, 1979, https://doi.org/10.4271/790925.Also In
References
- Last A. J. “The HydroShear - Diesel Fuel/Water Emulsions” Paper presented at 2nd Symposium on Emulsified Fuels in Combustion Cambridge, Ma. September 1978
- EPA Standard of Performance for New Stationary Sources Federal Register 41 June 9th 1976
- Dryer F. “Water Addition to Practical Combustion Systems” 16th International Symposium on Combustion The Combustion Institute 1976
- Marshall W. F. “Experiments with Novel Fuels for Diesel Engines” February 1978
- Walter R. A. “Emissions and Fuel Economy of a Detroit Diesel 6-71 Engine Burning a 10% Water-in-Fuel Emulsion” U.S. Department of Transportation Report No. CG-D-10-78 July 1978
- Cook D. H. Law C. K. “Combustion Science and Technology” 18 217 1978
- Storment J. O. Coon C. W. “Single Cylinder Diesel Engine Tests with Unstablized Water-in-Fuel Emulsion” D.O.T. Report No. CG-D-13-78 August 1978
- Murayama T. Tsukahara M. Morishima Y. Miyamoto N. “Experimental Reduction of NO x , Smoke and BSFC in a Diesel Engine Using Uniquely Produced Water to Fuel Emulsion” Paper presented at Symposium on Emulsified Fuels in Combustion U.S. Department of Transportation Cambridge, Ma. September 1978
- Lawson A. Piett M. Last A. J. “Emission Control of a Deutz F6L 714 Diesel Engine, Derated for Underground Use” ORF Report 2722/02 for CANMET Energy Mines and Resources Canada March 1979
- Lawson A. Simmons E. W. Piett M. “Emission Control of a Detroit Diesel 8V 71N Engine Derated for Underground Use” ORF Report 2512/5 for CANMET Energy Mines and Resources Canada March 1979
- Berg P. S. Holmer E. Bertilsson B. I. “Utilization of Different Fuels in a Diesel Engine With Two Separate Injection Systems” Paper presented at Alcohol Fuels Technology, 3rd International Symposium Asilomar California May 1979