Energy Policy
Saravanakumar V; Balu P; Saravanan C; Navaneetha Krishnan P
Abstract
Renewable and cleaner diesel engine fuel has received a lot of attention recently as a result of the depletion of fossil resources. In light of this, biodiesel has proven to be a viable substitute for diesel fuel. The finest B20 Jamun blends were combined with three different types of nano-additives ...
Read More
Renewable and cleaner diesel engine fuel has received a lot of attention recently as a result of the depletion of fossil resources. In light of this, biodiesel has proven to be a viable substitute for diesel fuel. The finest B20 Jamun blends were combined with three different types of nano-additives to create Syzygium cumini (Jamun) biodiesel, which was tested in a naturally aspirated diesel engine. Global researchers are increasingly developing novel nano-additives, recognizing them as a promising and effective approach for enhancing fuel properties and engine performance. This technology was combined with different biodiesels. Also included in this chapter is an examination of a test engine using three distinct nano-additives: titanium dioxide (TiO2), zirconium oxide (ZrO2), and cerium oxide (CeO2). These additives were combined to create the best blends of Syzygium cumini (B20), and the results were evaluated based on factors such as performance, combustion, and output emissions. Additionally, a proposal is made to further improve the construction of a realistic and economically feasible nanoparticle addition for diesel and biodiesel fuel.
Biomass Energy Sources
M. Akbari Vakilabadi; A.R. Binesh; M. Monfared
Abstract
A mathematical model has been investigated to predict the effect of hydrodynamic forces, especially thermophoretic forces on micro organic particles in counter-flow combustion in this research. Hydrodynamic forces change the velocity and concentration of evaporative organic particles moving toward the ...
Read More
A mathematical model has been investigated to predict the effect of hydrodynamic forces, especially thermophoretic forces on micro organic particles in counter-flow combustion in this research. Hydrodynamic forces change the velocity and concentration of evaporative organic particles moving toward the flame and they make a particle-free distance above the flame surface. Particle evaporation creates a thrust force that affects the velocity of the particles, which can be ignored compared to other hydrodynamic forces. Also, the temperature difference between the particles, the interaction of the particles on each other is neglected.The distance between the inlet nozzle and the flame surface is divided into four zones to investigate the dynamic behavior of particles in the flame front that in each case, the dynamic particles equations are written and the effect of thermophoretic force, weight force, drag force and buoyant force are analyzed on the particles and as a result, the velocity and concentration profiles of the particles are obtained in terms of distance from the flame front at different strain rates and with different particle diameters. The particles concentration of above the flame front increases with the balance of these forces, which the increasing the particles accumulation above the flame decreases the combustibility of particles in the flame front. Then, the length of the particle-free zone is extracted under the influence of different strain rates at different temperatures. As the flame surface approaches, the temperature gradient rises and the thermophoretic force increases. Accordingly, heavier particles accumulate closer to the flame surface.