| Abstract from DBPedia | A chimney is an architectural ventilation structure made of masonry, clay or metal that isolates hot toxic exhaust gases or smoke produced by a boiler, stove, furnace, incinerator, or fireplace from human living areas. Chimneys are typically vertical, or as near as possible to vertical, to ensure that the gases flow smoothly, drawing air into the combustion in what is known as the stack, or chimney effect. The space inside a chimney is called the flue. Chimneys are adjacent to large industrial refineries, fossil fuel combustion facilities or part of buildings, steam locomotives and ships. In the United States, the term smokestack industry refers to the environmental impacts of burning fossil fuels by industrial society, including the electric industry during its earliest history. The term smokestack (colloquially, stack) is also used when referring to locomotive chimneys or ship chimneys, and the term funnel can also be used. The height of a chimney influences its ability to transfer flue gases to the external environment via stack effect. Additionally, the dispersion of pollutants at higher altitudes can reduce their impact on the immediate surroundings. The dispersion of pollutants over a greater area can reduce their concentrations and facilitate compliance with regulatory limits.煙突（えんとつ）とは、燃焼の過程で排出されるガスが持つ上昇気流を風による外乱から守り、燃焼を促進させる筒状の構造物である。人体に不快・有害な煙などが屋内で拡散するのを防ぐ効果もある。なお、通常の煙突は英語でチムニー（chimney）というが、船舶の煙突はファンネル（funnel）という。 (Source: http://dbpedia.org/resource/Chimney) |
