this study presents a computational study of mixture formation, flame front movement, combustion process and emission formation at the various spray angles and number holes in a direct injection diesel engine. this work is carried out in a direct injection om355 diesel engine at four and five holes with 130
, 135
and 140
spray angles. the amount of fuel injected per cycle is constant at all s...

spray drying is one of the most important processes applied in the industry. the equipment used in this process evaporates water in a very short time and so, need a lot of energy. in this work, we used microsoft excel as an analysis tool for the optimization of fuel usage in this dryer. we have described the process in terms of thermodynamic calculations and mass and heat balance equations. our...

Homogeneous Charge Compression Ignition (HCCI) combustion is being considered as an alternative to conventional engine combustion systems due to its high efficiency and low engine-out emissions. To prepare a homogeneous mixture for diesel HCCI combustion, two types of low pressure (5MPa~20MPa) injectors were considered: a swirl injector and a multi-hole injector. A modified version of the KIVA-...

Water-in-diesel emulsion (WiDE) is an alternative fuel for CI engines that can be employed with the existing engine setup with no additional engine retrofitting. It has benefits of simultaneous reduction of both NO x and particulate matters in addition to its impact in the combustion efficiency improvement, although this needs further investigation. This review paper addresses the type of emuls...

A typical heavy-duty diesel fuel injector comprises of a solenoid control valve, a plunger cylinder and a fuel passage linking the first two elements. Through this passage a fuel communication is established where the fuel is delivered into the plunger cylinder via control valve. The plunger pressurizes the fuel in excess of 32,000 psi and the high-pressure fuel is injected through spray nozzle...

-There has been a significant effort to understand the events that occur when two or more droplets collide. The majority of the early work, which dates from the 1960s, focused on droplet growth relating to precipitation and was thus limited to water droplet collision phenomena. Recently, studies have sought information on the collision behavior of fuel droplets for application to combustion spr...

In this study, a catalyst was synthesized on carbon nanofibers [CNFs] with a herringbone-type morphology. The Pt/CNF catalyst exhibited low hydrophilicity, low surface area, high dispersion, and high graphitic behavior on physical analysis. Electrodes (5 cm2) were prepared by a spray method, and the durability of the Pt/CNF was evaluated by fuel starvation. The performance was compared with a c...