Six out of ten engineers say that standard sizing is the most important feature when selecting a motor, according to a recent survey by Design News and Control Engineering Magazines. Price follows as the second most important feature, followed by standard housing construction and the type of mounting. As for what sizes are key, NEMA 11 and NEMA 23 are the two most popular frame sizes.
Although plastics make up only about 11% of all US municipal solid waste, many are actually more energy-dense than coal. Converting these non-recycled plastics into energy with existing technologies could reduce US coal consumption, as well as boost domestic energy reserves, says a new study.
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