Journal
FUEL
Volume 170, Issue -, Pages 245-253Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2015.12.030
Keywords
Methanol; Biodiesel; Compression ignition engine; Engine properties
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This article shows the research results and the analysis of the engine properties of diesel fuel, rape seed methyl ester and methanol (M). In the test two blends, 30 V/V% biodiesel (FAME, B30) and 30 V/V% FAME with 10 V/V% methanol (M, B30 + M10) were investigated compared to the reference diesel fuel (D). These properties were researched using an Audi 1.9 TDI 1Z compression ignition (diesel) engine loaded in wide range BMEP = 0.236-1.203 MPa (M-B = 36-179 N m) and 4 speed regimes in range n = 2000-3500 min(-1). The change of energy and ecology properties during engine work on different fuels was analysed as well dQ/d(phi max) and dp/d(phi max) for the assessment of thermal and mechanical load of engine parts. While BSCF increased up to 3.5% for B30 and varied in range of 2-13% for B30 + 10M the BTE increased 1-2% and 2-2.5% respectively. The part of ecology indicators improved by adding M to B30: high engine loads characterized by 2-13% reduced CO and whole engine load range - 13-45% reduced concentration of soot. However emission rates of NOx, HC and CO2 were close to or higher than reference diesel fuel (D). Research of thermal and mechanical load criteria (values of dQ/d(phi max) and dp/d(phi max)) showed that the additive of M to B30 blend has no such a strong effect as expected. (C) 2015 Elsevier Ltd. All rights reserved.
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