Experimental investigation of the effects of 7% ethanol and 7% isopropanol added to standard diesel fuel on engine vibration and noise

Abstract

Reducing noise and vibration emissions, which are the most important factors affecting drivingcomfort in diesel engine vehicles, is an important issue. It seems possible to reduce these emissions byadding renewable fuels to diesel fuel. The main purpose of this study is to reduce engine vibration and noiseemissions by mixing ethanol and isopropanol fuels with diesel fuel. In the experimental study, 7% ethanol(D93E7) and 7% isopropanol (D93IP7) were added to the pure diesel fuel to reduce vibration and noiseemissions caused by the use of standard diesel (D100) fuel. The experiments were carried out at twodifferent loads (3-6 Nm) and at four different speeds (1000-1500-2000-2500 rpm). When the test resultsare evaluated in general; In the tests performed with D93E7 fuel at 6 Nm load and 2000 rpm, it wasdetermined that vibration emissions decreased by 26% compared to D100 fuel and noise emissionsdecreased by 2%. On the other hand, in tests performed at low load (3 Nm) with D93I

Evaluation of the environmental and cost impact of a small diesel engine with ethanol-diesel and isopropanol-diesel fuel at varying engine loads and speeds

“…Subsequently, using a LABVIEW-based programmable software, the engine torque and speed were adjusted according to the test matrix. The ABB brand dynamometer has maximum measurement values of 50 kW for engine power, 157 Nm for torque, and 6000 rpm for engine speed [22,23].…”