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Effects of fossil fuels on the environment
Effects of fossil fuels on the environment
Fossil fuels and climate change
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Ever since the invention of the internal combustion engine, scientists and engineers have worked to increase its efficiency. As it stands now, the average internal combustion automobile engine only converts roughly 20% of its energy into useful motivational power. Most of the rest is expended through heat loss in various locations. The cooling system in an automobile is used to remove heat from all the moving parts so that they can still function properly without melting, seizing, or overheating. If an engine was ideal, it would release no heat because all of its energy would be converted into the power transferred to the wheels, but no such engine exists in reality. With all the many moving parts that must remain in contact with one another (in order to maintain compression and prevent various other leaks), friction is inevitable and thus, so is heat. Therefore, the cooling system in the car is exceedingly important. The way it works is basically a simple matter of heat transfer. Water cooled vehicles use a combination of air and liquid cooling mechanisms, routing coolant hoses past the hotter parts of the engine so that heat can transfer from the engine parts into the coolant, which then goes back into the radiator to be cooled off by the incoming air. Air cooled vehicles typically have large fans installed strategically on the engine and heat dissipating fins on the heads. What may come as a surprise to some is that the heater in the cab of your car is actually a part of the car's cooling system. Heat that is removed from the engine is simply piped into the cab so that the driver doesn't freeze to death in the middle of winter. The removal of this heat draws colder air into the engine compartment... ... middle of paper ... ... rather have clean air, myself... Conclusion It may seem as though there are no significant benefits to the inefficiencies of internal combustion engines. After all, they waste fuel, resources and money; they pollute the environment and create potential health risks; and to some people, too much can go wrong with them to ever make them worth trying to understand. I, however, will always stand by my love of the painstakingly choreographed dance that takes place within a combustion engine; all the parts working in time to create a glorious, gas-guzzling, ozone depleting, peace disturbing chunk of steel, rubber, glass and aluminum that can go 0-60 in a matter of mere seconds. And I would like to hear anyone curse the inefficient heat loss of their engine when it is pumping 70° air into a -40° cab at 6 a.m. in the middle of Fairbanks' frigid winter.
If we increase the efficiency remarkably, we may be able to consume fewer fossil fuels and may be able to reduce carbon emissions into the atmosphere therefore saving Mother Earth. This will not happen shortly, but in the future when my great-great-grandchildren are in the working force designing these engines.
This requires the engine to have a state-of-the-art coolant system. Big tunnels through the perimeter of the engine allows coolant to flow all around the motor at all times and keep the engine cool. The radiator is also much thicker from the factory, and is angled at 45 degrees in the engine bay to maximize air flow. The number one reason why these engines stop functioning is due to a problem with the coolant system.
4.Exhaust: After the Air/Fuel mix has been burnt the remaining chemicals in the cylinder (water and CO2 for the most part) must be removed so that fresh air can be brought in. As the piston goes back up after combustion the exhaust valve opens allowing the exhaust gasses to be released.
...ese dangerously harmful gasses would be released into our atmosphere by all combustion engines. Although the catalytic converter when operating at its optimal temperature can break down over 95% percent of the harmful gasses produced by the engine it does not do a well at all when not at high temperatures. It takes about five miles of driving for most vehicles to reach a temperature at which the reactions will reach near completion, before this temperature the catalytic converter does practically nothing to convert these harmful gases. Some catalytic converters now have coils running from the engine to the catalytic converter to heat the catalytic converter to its optimal temperature soon after the engine has started to produce harmful gasses. With this improvement the catalytic converter can effectively reduce almost all of the carbon monoxide and nitrogen oxide.
Driven in large part by global initiatives and the potential for stringent regulations, the past decade or two has seen a marked increase in the importance of improvements with respect to environmental standards, including emissions and increases in fuel economy. In 2002, Cummins Emissions Solutions was launched after the need was identified for an emission solution that would help engines meet future regulations. In 2006, Cummins pioneered a hybrid diesel-electric bus which reduced fuel consumption and greenhouse gasses by more than 30 percent and me...
Who would like to drive a car that gets worse gas mileage, a car that has less torque, and car that is all round mediocre? Now who would like to drive a car with much better gas mileage, higher torque, and a great, reliable engine? The obvious choice is the latter, a car with a diesel engine. Diesel and Gasoline engines have been each other’s competition since the 1930’s. There is one main mechanical difference between these two engines; a gasoline engine ignites the gasoline with spark plugs, a lighter of sorts, and the diesel engine ignites the diesel by compressing is so much that it spontaneously combusts. Although there are a few other types of engines now, such as hybrid or electric, diesel is still all round superior to these. I have
Being a member of the future generation of innovators and leaders, I feel that this research combined with my fascination of automobiles could lead to a clearer understanding of how I can help improve the automobile. In a world that is highly connected by roads, if the problem of using petroleum-based fuels is not solved, the entire gas-guzzling world could come to a standstill. This apocalyptic halt would cease all travel and we would be thrown back to a more primitive standing. However, if we research and find an alternative ahead of time, we would be able to transiti...
The majority of people, especially in America, cannot go about their daily lives without a car. Automobiles have instilled themselves in peoples’ lives and shown their usefulness since their debut in 1769. Since then, humans have redesigned and refined the automobile thousands of times, each time making the vehicle more efficient and economical than before. Now as the world approaches an ethical decision to dwarf all others, many people look toward automotives for yet another change. The emergence of the hypercar due to ecological turmoil exemplifies the change the world has demanded. Hypercars alter everything people know about automotives, modern ecology, and fuel efficiency. Not only do hypercars offer a solution to many ecological problems humans are faced with now, they also represent the only logical area for the automotive industry, and by some stretch American society, to expand.
Climate change in automotive industry represent both threat and opportunity in the business. It gives opportunity for the car makers to develop a new technology that is more environmental friendly, which can reduce the amount of green house gas emission. It also gives the carmakers to create a more energy efficient in their operations, which can cut the unnecessary production costs. Other opportunity is the fact that they will use this global concern to further research and investigate the use of creating a new energy source, and helping reducing the pollution caused by the use of fossil fuels.
In my undergraduate years, I have acquired a strong background in the fundamentals of basic mechanical engineering, having studied subjects such as Strength of Materials, Thermodynamics, Fluid Mechanics, Heat and Mass Transfer, Design of Machine Elements and Automobile Engineering. Whilst pursuing my diploma & degree courses, my interest for Automotive Engineering grew even more having learnt more on the different types of internal combustion engines, their configuration and importance. However, what I lacked was a practical understanding on these core areas of Automotive Engineering. To gain a better understandi...
fume-free, smooth driving experience. Since the motor does not operate when the vehicle is at a
Before the invention of the modern day engine, lifestyles were completely different. Letters were sent by horse drawn wagons, people traveled by horses and other such animals, often taking an entire day to go twenty miles. The first direct injection fuel engine was not invented until 1923.[1] It only took a year before this engine was put into automobiles, making the lives of the general public much easier. The invention of the engine not only made it possible to travel by road, but also by water and air. Mail was no longer delivered by horses and families were able to travel from one place to another in less than an entire day. However, the affects of the modern day engine can be seen all over the world. Take Los Angeles for example; the city is filled with smog which is from the overcrowding of all the freeways with automobiles. Technology has escalated to a level where engines are no longer made by the working man. Now, engines can be made simply machines and computer based tools. However, these thought of simple ways of creating engines are not as easy as the first seemed. There are many positive and negative aspects of using technology to design engines.
...o an electric outlet to recharge the vehicle while it is parked. One great thing about this hybrid is the ability to travel in all electric mode for most short trips. This conserves the gas in the gasoline engine for longer drives. This feature helps boost fuel economy into 100 mpg territory. Not only is the Volt a plug-in hybrid, but so are the Ford Fusion Energi, Toyota Prius, and Honda Accord.
With this new idea both the auto makers and their suppliers have created a centralized body of authority in order to promote this increasing environmental issue to all under the protection of USCAR (United states council for automobile research) and in addition (USAMPILCA) These groups introduced the rule that US mid size vehicles must list the entire components within and materials type and mass must also be identified.
...rged as a consequence of volume development. As the motor chills off once more, the compartment furnishes a proportional payback liquid to the radiator, consequently, "reusing" it. This implies that fresher autos are considerably less inclined to overheating as more senior autos. Consolidated with upgrades in radiator liquid mixtures, which go about as radiator fluid in frosty climate and coolant in hot, the "reusing" methodology has prompted a noteworthy abatement in break downs identified with warm extension.