The Effect of Unreacted Residue in Biodiesel Fuel on Diesel Engine Performance

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X
48-02-05.pdf97.88 KB

This paper reviews the impact of using biodiesel fuel containing large amounts of raw material components on engine performance in an agricultural tractor. If a fuel containing abundant methanol, a raw material component, is used, the engine output decreases; presumably due to the drop in fuel injection. Accordingly, it emerged that the engine’s original fuel consumption could not be maintained as methanol vapor was generated from the fuel and accumulated in the fuel pipe. Moreover, the engine was operated for 700 hours using a fuel containing abundant triglyceride, which, in itself, is a raw material fat residue for a new tractor, regularly inspecting and servicing as specified by the tractor manufacturer and using the electrical dynamometer. Consequently, the power output from the power take-off shaft(hereinafter referred to as “PTO”) decreased by 0.4 to 1.2kW from the value before the start of the operation, the specific fuel consumption (hereinafter referred to as “SFC”) increased by 7 to 23g/kWh and the carbon monoxide (CO) and black smoke concentrations increased significantly. Based on the disassembly and adjustment of engine parts after the operation, this phenomenon is considered attributable to the reduction in exhaust valve clearance accompanying the wear of the valve seat, which may occur, even in the middle of the operation with diesel fuel.

作成者 CHIBA Masamoto SHIMIZU Kazufumi TAKAHASHI Hiroyuki TESHIMA Tsukasa HARANO Michio

fuel injection

long-term operating

methanol vapor



公開者 Japan International Research Center for Agricultural Sciences
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
開始ページ 139
終了ページ 145
DOI 10.6090/jarq.48.139
権利 Japan International Research Center for Agricultural Sciences
言語 eng