Combustion and emission characteristics investigation of a marine diesel engine powered by diesel/biodiesel/n‐butanol blends 

Abstract

In this paper, a three‐dimensional simulation model of the engine cylinder is established using commercial simulation software AVL‐Fire, and the accuracy of the model is verified with experimental results. The effects of diesel/biodiesel/n‐butanol blends on diesel engine performance, and combustion and emissions characteristics were investigated by performing simulation operations on the model. The combustion process in the cylinder was simulated for 0%, 5%, 10%, 15%, and 20% of n‐butanol in the fuel mixture. The results showed that at 75% load, the brake thermal efficiency of D95N5, D90N10, D85N15, and D80N20 engines increased by 0.84%, 1.68%, 2.48%, and 3.19%, respectively, and soot emissions decreased by 2.76%, 5.52%, 8.25%, and 10.96%, respectively, compared with D100. However, the brake power of the engine was reduced, the brake ratio fuel consumption increased, and NOx emission increased. In addition, at all loads, soot and CO emissions decrease as the percentage of n‐butanol in the fuel mixture increases.

Performance and Exhaust Emissions from Diesel Engines with Different Blending Ratios of Biofuels

“…According to Yu et al [22], as the N-butanol ratio increased within a fuel mixture, soot and CO emissions decreased. Nalla et al [23] used Prunus domestica seeds as fuel and n-butanol as an additive and found that the cylinder combustion had higher efficiency and lower fuel usage on account of the presence of n-butanol.…”

LPG, Gasoline, and Diesel Engines for Small Marine Vessels: A Comparative Analysis of Eco-Friendliness and Economic Feasibility

“…This study addresses these limitations and conducts a comprehensive comparison of CO 2 , CO, NO, and soot emissions from marine LPG, gasoline, and diesel engines. This analysis is based on the AVL FIRE simulation program, which is a reliable tool validated in various studies [20][21][22][23][24]. The modeling of the simulated LPG engine, that is, the reference engine model in this study, is conducted based on the information of the marine LPG engine, which is the first candidate for type approval for small ships in Korea.…”

Determination of the sustainability index along with energy–exergy–emission–economic analysis of a VCR diesel engine fuelled with diesel–bioethanol–Al2O3 nanoparticles

“…However, the engine's braking capacity was decreased, the brake ratio's fuel consumption rose, and NO x emissions rose. 23 The use of mathematical models to forecast the brake-specific fuel consumption and exhaust emissions of a diesel engine in terms of variables such as load and volume percentages of Fe 3 O 4 magnetic nanoparticles. 24 Using ANN, the influence of a ternary blend of diesel (80%), ethanol (10%), and n -butanol (10%) on the combustion and emission parameters were examined.…”