A LABORATORY METHOD FOR ASSESSING LUBRICITY CHARACTERISTICS OF DIESELFUELS

The wear of fuel injection system which supplies fuel to CI engine pla ys a dominant role on combustion behaviour of fuels as well as on exha ust emission. Certain amount of fuel lubricity is required for mitigat ion of wear of these components. A simple laboratory test was devised using ball on disc machine. Various diesel fuels and n-cetane were eva luated. The paper describes a laboratory test method for assessing lub ricity characteristics of fuels and compares its operating parameters with ASTM D-5001 BOCLE test. It also discuss the effect of sulphur and fuel lubricity additive on wear.