Eran Sher's Handbook of air pollution from internal combustion engines: PDF

By Eran Sher

ISBN-10: 0126398550

ISBN-13: 9780126398557

This guide is a crucial and precious resource for engineers and researchers within the zone of inner combustion engines pollutants keep an eye on. It offers a very good up to date assessment of obtainable wisdom during this box and furnishes crucial and valuable info on pollution parts, mechanisms of formation, keep watch over applied sciences, results of engine layout, results of operation stipulations, and results of gas formula and ingredients. The textual content is wealthy in explanatory diagrams, figures and tables, and features a huge variety of references. Key beneficial properties * a major source for engineers and researchers within the quarter of inner combustion engines and pollutants keep watch over * offers and perfect up to date assessment of the to be had wisdom during this sector * Written through 23 specialists * offers over seven-hundred references and greater than 500 explanatory diagrams, figures and tables

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Extra resources for Handbook of air pollution from internal combustion engines: pollutant formation and control

Sample text

With appropriate quality fuels, and in the absence of component failures or malfunctions, engine controls such as precise fuel metering to achieve a stoichiometric mixture during all modes of vehicle operation, fast combustion system, accurate control of spark timing and exhaust gas recycle rate, low thermal inertia exhaust system, durable and highly effective exhaust oxygen sensor and catalyst are proving remarkably successful at meeting the emission regulations. Problems result, however, when critical system components fail or malfunction; emission levels then rise substantially.

Additional scavenging control is achieved with an exhaust flow control device (shown in the figure), a low-thermalinertia, tuned, exhaust system, and a close-coupled oxidation catalyst to achieve fast light-off for HC and CO control. NO x control is achieved within the cylinder. The two-stroke scavenging process leaves significantly more burned gases inside the cylinder, mixed with the fresh air, than does the four-stroke gas-exchange process. This additional residual burned gas in the in-cylinder fuel-air mixture reduces peak burned gas temperatures and the NO formation rate significantly.

1). Some ultraviolet light, however, does reach the ground. It is in a waveband from 290 to 320 nm, known as UV-B. It causes sunburn, some forms of skin cancer, and is associated with eye problems such as cataracts. In contrast to its harmful effects, the UV-B radiation is an important ingredient in the formation of vitamin D. Owing to the ozone layer, radiation with wavelengths in the band from 240 to 290 nm, known as UV-C, does not reach the ground at all. Radiation within these wavelengths destroys nucleic acids (RNA and DNA) and protein.

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Handbook of air pollution from internal combustion engines: pollutant formation and control by Eran Sher


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