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... is about 30 percent efficient, whereas combined heat and power (also called cogeneration) converts up to 90 percent of the fuel into usable energy. Advanced boilers and furnaces can operate at higher temperatures ...
... 6 to 10 times longer than incandescent light bulbs. Newer florescent lights produce a natural light, and in most applications they are cost effective, despite their higher initial cost. Increased use of ...
... the available money has higher priorities, and in many cases the time and cost investment is not worthwhile. Condensing boilers are much more efficient than older types. Energy savings are achieved by ...
... and converts it into electricity and steam. A "waste heat recovery boiler" contains a series of water-filled tubes placed throughout the area where heat is released. When high-temperature heat meets the ...
... Oxide Batteries Used most frequently in watches, toys and some medical devices silver oxide batteries can become highly hazardous at the end of their useful life. After a period of use of approximately ...
In a 1996 article in The New York Times, John Tierney claimed that government mandated recycling wastes more resources than it saves. Some highlights from the article: In cases where recycling truly does ...
... this higher temperature, much more energy is needed, leading to the high environmental benefits of aluminum recycling. Glass Glass bottles and jars are gathered by a curbside collection truck and bottle ...
... due to the high sorting costs incurred by commingled collection. Advances in sorting technology (see sorting below), however, have lowered this overhead substantially—many areas which had developed source ...
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Taxonomy by Zaragoza Online