TwinBlade reduces operating and maintenance costs because wear from abrasive dust loads doesn't increase energy consumption over time.
Blade erosion in flue gas axial fans increases operating costs due to reduced fan efficiency. Positioning two non-profiled blades on one common blade base, says Håkan Bard, head of development at ABB Ventilation Products, results in substantially less wear than the corresponding airfoil blade. Even with some wear developing at the leading edge, fan peak efficiency is unaffected. In addition to fewer components, the "PF TwinBlade" promises no increase in power consumption due to wear, low impeller inertia, and less blade bearing/linkage maintenance.
James Schick, Flakt Fangroup Inc., 1110 Main Place Tower, Buffalo, NY 14202-0420; Tel: (716) 845-0200; E-Mail: james.h.schick.us.abb.com. For a TwinBlade animation, visit www.abb.com/fangroup; For more information, circle 510
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During a teardown of the iPad Air and Microsoft Surface Pro 3 at the Medical Design & Manufacturing Show in Schaumburg, Ill., an engineer showed this "inflammatory" video about the dangers of maliciously mishandling lithium-ion batteries.
Science fiction author Isaac Asimov may have the best rules for effective brainstorming and creativity. His never-before-published essay, "On Creativity," recently made it to the Web pages of MIT Technology Review.
Much has been made over the potentially dangerous flammability of lithium-ion batteries after major companies like Boeing, Sony, and Tesla have grappled with well-publicized battery fires. Researchers at Stanford University may have come up with a solution to this problem with a smart sensor for lithium-ion batteries that provides a warning if the battery is about to overheat or catch fire.
In this new Design News feature, "How it Works," we’re starting off by examining the inner workings of the electronic cigarette. While e-cigarettes seemed like a gimmick just two or three years ago, they’re catching fire -- so to speak. Sales topped $1 billion last year and are set to hit $10 billion by 2017. Cigarette companies are fighting back by buying up e-cigarette manufacturers.
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