G0710402 希薄予混合気を用いる天然ガスデュアルフュエル機関の性能・排気特性 : 二つの単気筒試験機関における実験結果の比較([G071-04]エンジンシステム部門一般セッション(4):「燃焼と反応」)

DOI Web Site

書誌事項

タイトル別名
  • G0710402 Performance and Exhaust Emissions in a Natural-Gas Dual-Fuel Engine with Lean Premixture : Comparison of Experimantal Results from Two Single-Cylinder Test Engines

抄録

This study aims at investigating the effects of engine specifications on exhaust emissions and performance for dual-fuel engines with lean natural gas premixture. For this purpose, the experimental results were compared between two engines with different stroke volumes. The test engines were based on single-cylinder four-cycle naturally aspirated direct injection diesel engines. To supply pilot fuel, an electrically controlled common-rail injection system was installed and the main fuel, natural gas was continuously supplied into the intake pipe. The results show that the overall characteristics of NOx, unburned species, combustion variation and thermal efficiency are similar to each other in equivalence ratio sweep and injection timing sweep tests. Higher heat release rates were observed for the smaller engine, which corresponds to lower THC emission and higher NOx emission for relatively later injection timings of pilot fuel.

収録刊行物

  • 年次大会

    年次大会 2014 (0), _G0710402--_G0710402-, 2014

    一般社団法人 日本機械学会

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ