The Use Of Port Injection Gasoline With Direct Injection Diesel Fuel

A mixture of fuel and air within each cylinder is ignited by a spark from the spark plug. As the fuel combusts, it goes a chemical reaction, yielding gaseous byproducts. Gasoline can only burn if it is in a vapor. The chemical equation for the combustion of the octane within gasoline is: 2 C8H18(g) + 25 O2 Þ 16 CO2(g) + 18H2O(g).” (Science Of NASCAR) The gases the begin to expand, this expansion pushes against the piston, causing it to move downward. Each of the following eight cylinders will then fire, and once all eight cylinders fire, the process repeats itself over again. Indy cars use pure Methanol (CH3OH), while NASCAR’s use the same fuel as your everyday car a “leaded 110-octane gasoline. The lead is in the form of a compound known as tetraethyl lead (Pb(CH2CH3)4).”(Science of Nascar) A small amount of Pb(CH2CH3)4 which is Tetraethyllead this is used to keep the gas from igniting when compressed. Octane, C8H18 (sometimes called noctane or normal octane), is a hydrocarbon that can be compressed fairly well without igniting. Isooctane is an isomer of octane, it’s better at being compressed without igniting, so it’s used in regular gasoline and is given the value of 100 in the octane rating

Equally important as the air, is the fuel going into the cylinder. Fuel starts off in the gas tank of the car and then gets pumped into the fuel lines by the fuel pump. The fuel goes through the fuel lines and into the fuel rail. Attached to the fuel rail are electronically controlled injectors (one per cylinder), which are controlled by the mass air sensor. The mass air senor regulates how much fuel is necessary to mix with the air to achieve the ideal air to fuel ratio. The injectors "spray" into the cylinder at synchronized times mixing with air and eventually resulting in combustion.

All internal combustion engines rely on the combustion of a chemical fuel. This process normally outcomes in the production of a large quantity of

The common problem which researcher’s faced was, they directly supplied the HHO gas in the carburetor. This HHO gas enters the carburetor at a certain temperature and with some traces of water in form of vapors. Both the outcome can be easily controlled by a simple unit. These problems are caused by the heat generation due to reaction happening through the electrolysis process inside the container. Some researchers have sprayed water to control the pre-ignition but eventually was in vain.

gasoline and is therefore comparable to that of coal. Ethanol also has excellent anti-knock qualities due to its high octane number and a high latent heat of evaporation, which makes the temperature of the intake manifold lower. In addition to the effect of latent heat of evaporation, the difference in combustion products compared with gasoline further decreases combustion temperature, thereby reducing cooling heat loss. Reductions in CO2, nitrogen oxide (NOx), and total hydrocarbons (THC) combustion products for ethanol vs. gasoline are described.

In today’s world there are many different engines that gets assembled in vehicles. The main difference in the engines are if they are gas or if they are diesel. While bearing some minor similarities, the differences between gas and diesel are remarkable.

The gas-fired internal combustion engine is perhaps one of the greatest human inventions of the 19th century. Since its invention, the engine has evolved numerous times to become the modern engine of today. As a result of the engine, methods of transportation have evolved, travel time has been reduced, and work and production have

As a quick statement prior to beginning this assignment I thoroughly enjoyed researching this topic. It has been of personal interest to me for years. I have, in the past (as far back as the 1970 's), invested my personal time researching designs and building prototypes, which utilize alternative fuels for vehicle propulsion and various mechanical motion applications with a practical approach.

Large engines are massly produced throughout various automobile manufacturers all over the world. However, Many solutions have been brought upon the manufacturer into producing engines that release less CO2, but that meant to recall all the previous vehicles and alter whatever they needed too. The proper solution to lean towards turbochargers, and size down on the amount of cylinders the engine has. Avoid the more expensive options such as hybrid systems and all electric systems so the vehicles can remain affordable to most of the population.

The history of the fuel injectors. The diesel fuel injection system has changed over the years the fuel injection has been around since the 1950s(“How”).

In the condition of the fuel injection timing θinj=-5deg.CA ATDC, the maximum value of the heat release rate tended to increase slightly as the dissolved pressure increased. In addition, the inclination of the cumulative heat release amount showed a tendency to increase. This promotes atomization of the fuel spray by the effervescent effect of CO2 gas, and a lean and uniform mixture is formed at an early stage. Therefore, it is considered that the combustion has progressed

Gasoline vehicles have a few different ways of mixing and making more environmentally friendly gasoline that is more efficient than others. Mixing gasoline and ethyl or methanol creates a product known as gasohol. This has reduced emission of pollution and has lower cost compared to normal gasoline. “In 1973, the Environmental Protection Agency (EPA) acted on the problem and set a time-scale for the gradual elimination of leaded fuels. The amount of lead was to be reduced from 2 to 3 grams per gallon (the 1973 average) to 0.5 g/gal by 1979. Ultimately, the addictive was to be totally eliminated from all gasoline” (“Gasoline”). The amount of lead that is allowed in gasoline was reduced from 2 to 3 grams each gallon of gasoline to 0.5 gallon by 1979.

Methanol as a biofuel is an environmental friendly substitute to pure diesel and can be obtained from biomasses. Use of biofuels such as methanol for combustion process is associated with positive environmental impacts. Using pure methanol or blended with diesel fuel in automotive has been proposed by researchers. In this paper, methanol was injected into combustion chamber of a ISM 370 HD diesel engine and exhaust emissions of this engine which took advantage of pure methanol were evaluated by using AVL FIRE CFD code software at four engine speeds (1200, 1400, 1600 and 1800 rpm). Additionally, influences of EGR mass fraction and various injection timings were investigated. For validation of simulation, in-cylinder mean pressure and rate of

I will describe in my own terms how gasoline is used to power the average automobile within an internal combustion engine. I will describe this process from the perspective of thermodynamics. The reason I feel this an interesting topic is the automobile has become such a steady presence in the daily life of society over the past century that we often take for granted the amount of science and engineering that go into them. The thermodynamics involved are a direct daily application of the topics we covered in this course, it also applies concepts we learn in other courses. It’s also an important discussion, because what makes gasoline the most common fuel, how do the alternatives stack up? Or should we look at engines that

Society is driven by the thought of improving every existing invention to make it bigger, smaller, more cost effective, or simply better. The internal combustion engine has been used in transportation for everyone who lives in a civilized area; whether it is a motorcycle, car, bus, airplane, etc. The most important advances in technology for these engines involve efficiency. Gas mileage, performance, and displacement are key concerns for all engineers of internal combustion engines. With the invention of the turbocharger all of these factors can be improved. The inventor, progression, impact, and current adaptation of the turbocharger are very important in understanding this engineering innovation.