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Free research papers and essays on topics related to: emission control

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  • Automobile Emissions - 1,899 words
    Automobile Emissions Pollution from automobile emissions has become over the past few decades an issue of great concern. With a growing number of motor vehicles on our roads great concern has been attributed to the effects of these emissions to our health and to the environment. Several of the gases emitted, which when present in certain concentrations in our atmosphere can be toxic, therefor these ultimate concentrations must never be achieved. Strict legislation as well as sophisticated control technology has been implemented in the automotive industry in order to limit the pollution caused. These aspects of automotive pollution shall be further discussed in this paper. KEYWORDS: Pollution ...
    Related: automobile, emission control, term effects, health effects, hemoglobin
  • Automobile Emissions - 1,846 words
    ... uction in carbon monoxide, hydrocarbon, and nitrogen oxide emissions. Figure 3.1 illustrates the percentage of these pollutant resulting from automobile emissions. POLLUTANT TOTAL AMOUNT VEHICLE EMISSIONS Amount Percentage NITROGEN OXIDES 36 019 17 012 47 HYDROCARBONS 33 869 13 239 39 CARBON MONOXIDE 119 148 78 227 66 Table 3-1 Pollution Accounted by Automobile Emissions in 1989 (1000 tons) The 1970 amendment requirements were so stringent for that period that they could not be met with available engine technology. New technology has since been developed and the requirements have been met. However, more rigid standards are continuously being proposed to improve emissions. While significa ...
    Related: automobile, automobile industry, emission control, internal combustion engine, automotive industry
  • Internalcombustion Engine - 1,502 words
    ... ely 440 C (approximately 820 F) by this compression. At the end of the compression stroke vaporized fuel is injected into the combustion chamber Fig. 3, Four-Stroke Diesel Engines. and burns instantly because of the high temperature of the air in the chamber. Some diesels have auxiliary electrical ignition systems to ignite the fuel when the engine starts, and until it warms up. This combustion drives the piston back on the third or power stroke of the cycle. The fourth stroke, as in the Otto-cycle engine, is an exhaust stroke. The efficiency of the diesel engine, which is in general governed by the same factors that control the efficiency of Otto-cycle engines, is inherently greater tha ...
    Related: engine, internal combustion engine, turbine engine, emission control, los angeles
  • Whether It Be Through Intensified Media Attention, Or Due To The Efforts Of Prominent Scientists And Other Members Of Society - 1,038 words
    Whether it be through intensified media attention, or due to the efforts of prominent scientists and other members of society, we have become increasingly aware of the detrimental effects that technological advances in industry and agriculture have on the global environment. However, as Carl Sagan points out in "Pulling the Plug on Mother Earth" awareness is not enough, nor is societys response to the catastrophic implications of environmental pollution rapid enough. Slowness to implement sound strategies are in part due to the fact that the threats we face are nebulous, since they come in the form of particles of invisible gases and radioactivity, and in part because response to pollution a ...
    Related: media, prominent, carl sagan, skin cancer, curb
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