1980-02-01

Winterization of Diesel Fuel Systems in Large Coal Mining Haul Trucks 800224

This work shows how winterized diesel-powered mining vehicles can operate on No. 2 diesel fuel at low winter temperatures without using No. 1 diesel fuel as a diluent to lower cloud point.
A study of low temperature fuel requirements was made during the 1976–1977 winter. Fuel system temperatures were compared to ambient temperatures and vehicle operability. Once the diesel equipment was warmed up and operating, fuel system temperatures remained high enough that wax plugging did not occur with No. 2 diesel fuel.
Based on this data, a recirculating fuel system heater was designed to be used while vehicles were shut down and parked. This approach was successfully tested during the 1978–1979 winter.

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