ADAPTATION OF TRACTOR DIESEL ENGINE TO OPERATION ON HILL MUSTARD MINERAL FUEL

Abstract

The purpose of the research is the adaptation of the tractor engine to operation on diesel blended fuel (DBF), the biological component of which is vegetable oil of Bunias orientalis or hill mustard. The information on the fatty acid and hydrocarbon composition is given, as well as the lower heat of the combustion and the cetane number of the hill mustard oil and DBF with a different percentage ratio of commercial mineral diesel fuel (DF) and hill mustard oil. The results of tribological studies of the hill mustard oil and DBF on a universal tribometer with a three-sized friction node are presented. Analysis of the results indicates that in terms of flammability, calorific and lubricity indicators, it is rational to use blended hill mustard-mineral fuel with a 10-50% content of the hill mustard oil in it. For the tractor to operate on mineral DF and DBF, a two-fuel diesel power system has been developed and patented, which, along with the nodes and units of the standard power supply system, contains a switch of a motor fuel type, an ultrasonic device for processing DBF components by high-frequency oscillations, a temperature sensor and a load sensor. In start-up, warm-up and stop modes, the operation of the diesel engine is carried out on mineral DF, in other modes – on DBF. DBF processing with high-frequency oscillations is carried out only when the diesel engine is operating in the nominal load mode or in overload mode. When using a diesel engine in idling modes, small and medium loads modes, the processing of blended fuel by high-frequency oscillations is not produced.

Keywords

• diesel
• mineral diesel fuel
• hill mustard oil
• diesel blended fuel
• calorific and lubricating properties
• flammability
• power system