Effects of Diesel-Biodiesel Blends in Diesel Engine Single Cylinder on the Emission Characteristic

Abstract

Biodiesel is an alternative fuel that is used in a diesel engine as a substitute for diesel fuel. However, using biodiesel without a modified engine can cause higher NOx emissions. Therefore, to reduce harmful emissions some strategy must be proposed or or a change in the injection is performed. In this study, injection schemes and engine performance injection time, emissions and firing characteristics of biodiesel mixing results in engines were investigated by using GT-POWER simulation. The simulations in this study were conducted on diesel engines to observe the accuracy in experimental results . The engines were tested at speeds of 1100 rpm, 1300 rpm, and 1500 rpm by using a biodiesel-diesel fuel mixture. The simulation results showed that NOx emissions were found to drop below 100 ppm when biodiesel fuel was used for all performed operations. Meanwhile CO emissions were also decreased by 10%-15% when biodiesel fuel was used, and the thermal efficiency level increased by 2% and 3.5% as compared to pure diesel. The ratio of NOx reduction rates of biodiesel and diesel was 11%-14% as compared to 9.5% with pure diesel. Based on the simulation result, it was shown that the accuracy level of simulation data with experiment was 97%. So this result can be the future testing standard and simulation by using GT-POWER could also be used especially for the automotive industry.

Massive QTL analysis identifies pleiotropic genetic determinants for stress resistance, aroma formation, and ethanol, glycerol and isobutanol production in Saccharomyces cerevisiae

“…Here, we show that leucine auxotrophy imposes a strong effect on fermentation phenotypes, and specifically aroma formation, because metabolism of leucine in yeast is tightly linked to the formation of various flavor-active compounds [ 53 ], including organic acids, aldehydes, and higher (fusel) alcohols [ 54 ]. Several of these higher alcohols are currently explored as biofuels [ 55 ], but they are also the main precursors of acetate esters, which are important contributors to the flavor and aroma of alcoholic beverages [ 56 , 57 ]. In particular, LEU2 encodes for beta-isopropylmalate dehydrogenase, involving in the conversion of α-ketoisovalerate (KIV) to α-ketoisocaproate (KIC) which is a direct intermediate in the biosynthetic pathway of isoamyl alcohol.…”

Investigation of The Effect Biodiesel-Butanol-Water Fuel Blend Pressure on A Single-Cylinder Diesel Engine

“…However, the thermal efficiency of the brakes (BTE) for all trials conducted showed a decrease. The use of alternative fuels for diesel engines has also been carried out by several previous researchers [15][16][17][18][19][20][21][22][23]. Alternative fuels for diesel engines have shown excellent results.…”

Assessment of the mechanical and environmental behavior of diesel engines operating with biodiesel mixtures

“…One of the best alternatives is the development of biofuels such as biodiesel, which can be used in internal combustion engines without the need to modify them, thus reducing environmental pollution; in addition, they are sustainable and economical in nature, unlike conventional fuels [4]. Biodiesel is the most widely used biofuel and is produced from vegetable oils such as soybeans, cotton seeds, sunflower, and palm oil [5]. It shows better characteristics in ignition quality, lack of sulfur and aromatic content, renewal capacity, and biodegradability, and 30 % to 71 % reduction in emissions of polluting gases [6], in addition, to providing less engine wear, lower oil consumption and better thermal efficiency compared to that of traditional diesel fuel [7].…”