Effects on Diesel Engine Operation Characteristics of Mixed Fuel of Bio Fuel and Gas Oil

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  • 生物資源由来燃料と軽油の混合燃料がディーゼルエンジンの運転特性に及ぼす影響
  • セイブツ シゲン ユライ ネンリョウ ト ケイユ ノ コンゴウ ネンリョウ ガ ディーゼルエンジン ノ ウンテン トクセイ ニ オヨボス エイキョウ

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Abstract

BDF (Bio Diesel Fuel) is a diesel fuel made from vegetable oil and waste edible oil as raw materials. BDF containing a lot of oxygen promotes the combustion of diesel engines: hence, improvements in thermal efficiency can be expected. In other words, an increase in NOX concentration in the exhaust gas is also expected. However, previous research has found that while gas oil and BDF have different fuel properties, use of these under operating conditions with diesel engines eliminates the drastic differences in thermal efficiency and exhaust gas characteristics. Therefore, the purpose of this study is to grasp the effects of oxygen in fuel in the combustion process of diesel engines. To this end, engine performance testing using mixed fuels of BDF and gas oil with different oxygen content rates was performed. The results clarified that using fuel with a moderate mix of BDF and gas oil improves the operation characteristics of the diesel engine compared to using BDF alone.

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