Experimental and Molecular Simulations for Evaluating the Effect of Lubricity improvers on the lubricity of jet fuel

摘要: Since the 1990s, kerosene fuel (code: JP-8) had been applied in ground equipment provided with direct injection compression ignition engines U.S. Army, resulting increased occurrence of pump failures. Anti-wear additives must be used single due to its poor lubricity. In present work, lubricity improvers were selected on basis molecular simulation theoretically and these agents evaluated improve jet using high frequency reciprocating rig (HFRR) apparatus ball-on-cylinder evaluator (BOCLE). It was revealed that dimer acid higher value adsorption energy Fe (110) plane surface more efficient promoting properties than naphthenic acid. The experimental results suggested a better tribological behavior compared as improver fuel. And addition anti-wear at dosage 15 μg/g able promote required level BOCLE, while concentration over 80 needed demanded diesel HFRR.