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Demonstrations of CNG as a Fuel in Agricultural Tractors
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English
Abstract
Three diesel tractors, converted to compressed natural gas (CNG), have been demonstrated on Saskatchewan farms. This paper presents the results of laboratory and field monitoring over a two year period. Dual-fuel conversion systems were installed on a John Deere 14440 tractor and on a White 2-180 tractor powered by a Caterpillar 3208 engine. A Deutz-Allis 7110 tractor came equipped to run on 100% CNG. The conversion system in the John Deere was mechanical with solid-state controls, the system in the White was microprocessor controlled, and the Deutz-Allis was equipped with spark ignition and a natural gas mixer. In addition, sufficient storage was installed on each tractor for field work over a 12-hour day. Performance results are presented for each tractor, including hours of operation, power output, thermal efficiency, percentage CNG substitution and fuel consumption. Problems encountered in the field are also discussed.
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Authors
Citation
Davies, J. and Sulatisky, M., "Demonstrations of CNG as a Fuel in Agricultural Tractors," SAE Technical Paper 891669, 1989, https://doi.org/10.4271/891669.Also In
References
- Gebhardt, P. D. Sulatisky M. “Saskatchewan CNG Farm Program,” paper presented at the Gaseous Fuels for Transportation Conference Vancouver, British Columbia August 7-10 1986
- Kaminski, T. L. “Compressed Natural Gas Usage in Farm Vehicle Engines,” paper presented at the ASME Energy-Sources Technology Conference and Exhibition Dallas, Texas February 15-20 1987
- Perry, G. C. Gettel L. E. “Dual-Fuel Natural Gas-Diesel Conversion System in Four Stroke Diesel Engines,” Report 6-05-460 by IBI Group and B.C. Research for Energy, Mines & Resources March 27 1986
- Davies, J. G. Reed W. B. “Dual-fuel Diesel Engines,” Canadian Society of Agricultural Engineering. Agricultural Institute of Canada Annual Conference Calgary. Alberta 1988
- Rutherford A. Gimby M. “Farm Fuel Requirements Enerdemo Project Results,” SRC Technical Report No. 199 October 1987