Evaluation of DME Fuel Lubricity by HFRR Test Method

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  • HFRR試験によるDME燃料の潤滑性評価
  • HFRR シケン ニ ヨル DME ネンリョウ ノ ジュンカツセイ ヒョウカ

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Abstract

Effects of impurities of fuel, which are worried to mix during producing and delivering when DME fuel for vehicles is put on a market, on DME fuel lubricities were investigated by special modified HFRR (High-Frequency Reciprocating Rig). Adding 100 ppm of fatty acid type lubricity improver in DME could be reduced the wear scar diameter 400 μm below. Water contamination of around 500 ppm and above increased wear scar diameter clearly. Methanol contamination did not affect on DME fuel lubricity.

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