Optimization of SI Engine Performance Operating with Low Octane Gasoline and Fuel Additives from Waste

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">Independent variable</td><td class="align_center" colspan="6">Codes factor levels</td></tr><tr class="thead"><td class="align_center" colspan="2">−<i>α</i></td><td class="align_center">−1</td><td class="align_center">0</td><td class="align_center">+1</td><td class="align_center">+<i>α</i></td></tr><tr><td class="thead-hr" colspan="7"><hr/></td></tr><tr><td class="align_left">Engine speed (rpm)</td><td class="align_center"><i>A</i></td><td class="align_center">585.786</td><td class="align_center">1000</td><td class="align_center">2000</td><td class="align_center">3000</td><td class="align_center">3414.21</td></tr><tr><td class="align_left">Fusel oil (%)</td><td class="align_center"><i>B</i></td><td class="align_center">0.69</td><td class="align_center">4</td><td class="align_center">12</td><td class="align_center">20</td><td class="align_center">23.31</td></tr><tr class="table-tr"><td colspan="7"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Levels and experimental range of independent variables.</div>

Mathematical Problems in Engineering

tab4

Table 4

Table 4: Optimization of SI Engine Performance Operating with Low Octane Gasoline and Fuel Additives from Waste 