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Turbine


— Electronics

DARPA program develops world's smallest vacuum pumps with big potential

Three DARPA-funded research teams have completed a foundational study of chip-scale vacuum pumps by inventing three very different approaches to removing air from a sample chamber with a volume of one cubic millimeter, which is about one-tenth the volume of a grain of rice. These new technologies will enable many micro-scale devices which require a vacuum or a controlled flow of gas, such as Lab-on-a-Chip sensors, radio frequency MEMS switches and microscopic vacuum tubes. Read More
— Environment Feature

Dodgy wind? Why "innovative" turbines are often anything but

Virtually every week there are articles about new and innovative methods for harvesting wind energy. And every week more megawatts of capacity from three-blade horizontal-axis wind turbines (HAWT) becomes operational, despite all of the contenders. Why aren't these innovative new products knocking the iconic HAWT off its perch? Is it possible to tell which are likely to be viable? These eight points are a useful way to assess which technology has potential, and which are likely just hot air. Read More
— Aircraft

NASA shows that icing inside turbofan engines kills power

About once a month on average, an incident is reported in which turbofan jet engines flying at high-altitude lose power. The pilots report that there is little if any bad weather that might explain the power loss and although uncommon, this fault is potentially disastrous. The culprit is called ice crystal icing, and NASA scientists are making progress in understanding the problem using a world first test facility that creates an artificial ice cloud similar to that encountered by planes at high altitudes. Read More
— Aircraft

Micro jet turbine-powered Jet Vest developers seek a Kickstart

The Bell rocket belt captured the world's imagination when it was featured in the 1965 James Bond movie Thunderball. Now, the folks at Jet Machines Extreme (JME) are designing a modern version not powered by rockets, but by a set of four miniature turbojets. The new Jet Vest is expected to offer free flying times nearly four minutes in duration. Having run short of development money, JME is exploring another modern innovation by reaching out to crowd-funding site Kickstarter for a boost. Read More
— Aircraft

Hypergravity helps in development of light, aircraft-grade alloy

In the quest for more efficient commercial aircraft to help reduce fuel consumption, weight reduction without compromising safety is one of the most obvious areas of focus. Researchers at the European Space Agency (ESA) working in the Intermetallic Materials Processing in Relation to Earth and Space Solidification (IMPRESS) Project have used hypergravity to help develop an aircraft-grade alloy they claim is twice as light as the nickel superalloys currently used in conventional jet engines, but boasts equally good properties. Read More
— Automotive

Batmobile replica powered by real jet engine

Last October, we told you about the full-scale working Batmobile replica built by movie prop-maker Bob Dullam. The version of the iconic superhero vehicle that Dullam chose to recreate was the rugged, Hummer-esque beauty from Batman Begins and The Dark Knight, known as the Tumbler. Well, that car now has some company on the road, in the form of a street-legal copy of the smoother, slinkier Batmobile that first appeared in 1989’s Batman. Built by Ohio auto restorer and designer Casey Putsch in just five months out of race car and military surplus parts, the vehicle is incredibly faithful to the original ... to the point that it’s powered by an actual jet engine. Read More
— Around The Home

H2O Power radio runs on water from the shower

For all the people out there who like listening to the radio while they’re in the shower, various companies offer waterproof battery-operated “shower radios.” There’s nothing particularly wrong with these radios, but ... why change or recharge the batteries if you don’t have to? No, we’re not suggesting running a power cord into the shower. Instead, you might be interested in getting an H2O Power water-powered radio. Read More
— Good Thinking

Filter feeding basking shark inspires more efficient hydroelectric turbine

Studying the bumpy protrusions on the fins of humpback whales has already led to more efficient wind and tidal power turbines and now nature is once again the source of inspiration for a new and more efficient hydroelectric turbine. The latest source of biomimicry is the basking shark, which industrial design student Anthony Reale has borrowed from to create "strait power," a water-powered turbine generator that tests have shown is 40 percent more efficient than current designs. Read More
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