"Anyone who has never made a mistake has never tried anything new."
Einstein.



Saturday, August 13, 2011

NO COIL , NO BURNING , NO FOSSIL FUELS

CLICK ON PHOTO TO SEE ANIMATION


Years ago, when the phrase "Global Warming" began gaining popularity,it was  good idea to re place asphalt and concrete surfaces with SOLAR PANELS that could be driven upon.
The heart of the Solar Roadway™ is the
Solar Road Panel™.

When multiple Solar Road Panels are interconnected, the intelligent Solar Roadway is formed. These panels replace current driveways, parking lots, and all road systems, be they interstate highways, state routes, downtown streets, residential streets, or even plain dirt or gravel country roads. Panels can also be used in amusement parks, raceways, bike paths, parking garage rooftops, remote military locations, etc. Any home or business connected to the Solar Roadway (via a Solar Road Panel driveway or parking lot) receives the power and data signals that the Solar Roadway provides. The Solar Roadway becomes an intelligent, self-healing, decentralized (secure) power grid.

The Solar Roadway is a series of structurally-engineered solar panels that are driven upon. The idea is to replace all current petroleum-based asphalt roads, parking lots, and driveways with Solar Road Panels that collect energy to be used by our homes and businesses. Our ultimate goal is to be able to store excess energy in or alongside the Solar Roadways. This renewable energy replaces the need for the current fossil fuels used for the generation of electricity. This, in turn, cuts greenhouse gases literally in half.

Each individual panel consists of three basic layers:


     Road Surface Layer - translucent and high-strength, it is rough enough to provide great traction, yet still passes sunlight through to the solar collector cells embedded within, along with LEDs and a heating element. It is capable of handling today's heaviest loads under the worst of conditions. Weatherproof, it protects the electronics layer beneath it.

Electronics Layer Contains a microprocessor board with support circuitry for sensing loads on the surface and controlling a heating element. No more snow/ice removal and no more school/business closings due to inclement weather. The on-board microprocessor controls lighting, communications, monitoring, etc. With a communications device every 12 feet, the Solar Roadway is an intelligent highway system.

Base Plate LayerLayer - While the electronics layer collects energy from the sun, it is the base plate layer that distributes power (collected from the electronics layer) and data signals (phone, TV, internet, etc.) "downline" to all homes and businesses connected to the Solar Roadway. Weatherproof, it protects the electronics layer above it.
Everyone has power. No more power shortages, no more roaming power outages, no more need to burn coal (50% of greenhouse gases). Less need for fossil fuels and Much less pollution. How about this for a long term advantage: an electric road allows all-electric vehicles to recharge anywhere: rest stops, parking lots, etc. They would then have the same range as a gasoline-powered vehicle. Internal combustion engines would become obsolete. Our dependency on oil would come to an abrupt end.

It's time to upgrade our infrastructure - roads and power grid - to the 21st century.

Friday, July 29, 2011

Solar cells printed on paper may make power more portable


The next generation of solar cells may be printed on ordinary paper.
Engineers at the Massachusetts Institute of Technology have created ultrathin paper cells that gather enough juice to power an LCD clock and can be glued to a briefcase, stapled to a hat or folded into a pocket. The research is a first step toward a cheap and lightweight source of renewable energy that, within two years, may be used for everything from charging an iPad to warming up clothing, researchers said.
"Rather than confining solar power to rooftops or solar farms, paper photovoltaics can be used virtually anywhere, making energy ubiquitous," said Karen Gleason, associate dean of engineering research at MIT in Cambridge, Mass., and leader of the team that produced the cells.
Paper cells would have the potential to create a new market based on the popularity of low- power electronic devices that are now mostly fed by batteries, such as mobile phones

Friday, July 15, 2011

brain-controlled prostheses

The government’s National Science Foundation will work on robotic devices that interact with, assist and understand the nervous system,’ said director Yoky Matsuoka, Washington University’s associate professor of computer science and engineering.It will combine advances in robotics, neuroscience, electromechanical devices and computer science to restore or augment the body’s ability for sensation and movement.’Researchers will develop technologies for amputees, patients with spinal-cord injuries and those with cerebral palsy, stroke, Parkinson’s disease or age-related neurological disorders.
‘We already see chips that interface with neural systems and then stimulate the right muscles based on that information, and we have purely mechanical lower-limb prostheses that are fast enough to compete in the Olympics,’ said Matsuoka.
‘Our centre will use sensory and neural feedback to give these devices much more flexibility and control.’
Early systems might involve remote or wearable devices that help to guide rehabilitation exercises to remap brain signals and restore motor control.
Ultimately, the researchers hope to develop implantable prosthetics that are controlled by brain signals and include sensors that shuttle information back to wearers so they can react to their environment — creating robotic systems that are truly integrated with the body’s nervous system.
‘I think the really interesting development is literally where the silicon meets the collagen,’ said Thomas Daniel, the centre’s deputy director and a Washington biology professor. ‘It remains an open challenge — one of the current problems in neural engineering.’



Sunday, May 1, 2011

Siemens PLM introduces new mobility App for iPad

Siemens PLM has launched an App that gives mobile users access to product data and workflows captured by Siemens Teamcenter software.
The App, called Teamcenter Mobility, will initially only be available on the Apple iPad.
Siemens said the App helps provide data access to traveling executives and managers who would traditionally, need to rely on office-based personnel to give them information from office systems and software.
Using the App, moreover, mobile workers will be able to enter data into PLM systems from remote locations.
“Teamcenter Mobility enables these individuals to quickly search, view and interact with product and process workflow information on the spot using a convenient mobile device,” Siemens said in a press release.

Wave-modelling tool could improve offshore structures

The project is a collaboration between City University London and engineering consultant GL Noble Denton and is in response to oil and gas exploration moving into deeper waters and the take-off of renewable projects.
‘You need to estimate the wave force produced by very large waves, particularly overturning waves, and the impact of these on structures must be accurately modelled. At the moment there is no efficient tool to do this — people are using empirical, linear formulae to estimate waveload, which are not accurate enough,’ said project lead Prof Qingwei Ma of City University London.
The software tool will help design engineers build optimised structures that are resilient to a range of conditions. In addition, it will help insurers create risk profiles and inform the decision-making process around existing structures.
‘Some structures, such as offshore pipes, might have been built 20 years ago, when we had a poorer understanding of waves, and in addition to that, climate change has perhaps made wave conditions different. So we need to know if we can continue to use this structure for the same purpose or for other purposes — for example, we might want to build wind turbines on existing structures and we need to know if it will be sufficiently strong .
The university has received £103,000 from the EPSRC and Finance South East to commercialise research by its Hydrodynamic Engineering Group, and GL Noble Denton will also contribute £50,000 to the work.









RENEWABLE ENERGY

Undersea compressed air energy storage (CAES)
Inflatable underwater containment facilitates highly efficient storage of offshore wind, tidal and wave power as compressed air (> 30 MJ/m3 at 700 m depth). Attached to the seabed, the inflated vessels would expel the depth-pressurized air to power turbines generating electricity during periods of high demand or intermittency of supply. Thin Red Line Aerospace is supporting Prof. Seamus Garvey’s visionary ICARES Project at University of Nottingham, UK, with design and fabrication of undersea vessels to 50 m3. Project efforts include concept development for volumes to 6000 m3.

Monday, March 28, 2011

Rolls-Royce develops LiftSystem for the F35-B Joint Strike Fighter


As the iconic Harrier heads for the scrapyard, the UK’s vertical lift expertise lives on in the F-35B combat aircraft
F-35B
Looking up: the F-35B will achieve vertical lift
When, in December, Britain’s Harrier jets landed at RAF Cottesmore for the final time, the sombre mood weighed on all those present. In a ritual known as the ’walk of honour’, the pilots disembarked from their aircraft and walked away without taking a single look back.
The walk marked the end of the Harriers’ 41-year career and closed an illustrious chapter in British aviation history. The iconic aircraft has become one of the country’s greatest technical achievements, being the only military jet that could hover above the ground and fly in areas other fighter aircraft were unable to reach.
   Despite this capability, the Harrier jets fell victim to the cuts outlined in the government’s strategic defence and security review. The UK has no plans to replace the Harrier and many remain concerned for the loss of military capability. But while the UK may be losing the Harrier, it is not losing the engineering expertise to develop the technology.
At an aero engine test base in Bristol, Rolls-Royce engineers are working on a new power system for the F-35 Lightning II Joint Strike Fighter (JSF), the latest generation of combat aircraft. Dubbed the LiftSystem, the technology will enable short take-off and vertical landing operations for the F-35B variant of the JSF programme, which is planned to enter service with the US Marine Corps in 2012.
Rotating fan
Rotating fan: situated behind the cockpit
The LiftSystem will allow a fighter aircraft to achieve both vertical lift and supersonic capabilities. Like the Harrier, the F-35B will be able to land without a runway and take off like a helicopter, while performing as a fighter aircraft. At the heart of the system is a component known as the Liftfan. This a 50in (127cm), two-stage, counter-rotating fan capable of generating 20,000lb (9,000kg) of thrust. Situated just behind the cockpit, it produces the aircraft’s forward vertical lift. ’The Liftfan is effectively an engine turned on its end,’ said Neil Mehta, programme director. ’This means the air has to turn through 90° before entering into the aircraft, causing huge distortions in airflow.’
Counter-rotating blisks are manufactured using hollow blades joined to the disc through linear friction welding
A normal aircraft engine is usually cleared to around a 30-knot cross wind. The F-35B, however, has to deal with winds up to 300mph (483km/h). ’To put that into context, Hurricane Katrina measured at about 75mph at its max, so we’re getting an awful lot more distortion,’ he said. To address this, the team has used computational fluid dynamics to model airflow behaviour and aerodynamic performance.
’Our programme for one cycle of the simulation uses as much processing power as a PlayStation running for 14 years,’ said Mehta. ’We’ve done more than 1,000 of those simulations.’
Landing
Landing:a runway is not needed
Designed around the airflows are two counter-rotating bladed discs, or ’blisks’, manufactured using individual hollow blades joined to the disc through linear friction welding. The blisks take air from the top of the fuselage and blast it through a vane box at the bottom of the craft. Each vane box can be directed independently, so the air can be generated fore and aft.
At the rear of the aircraft, thrust is produced from a rotating nozzle known as the three-bearing swivel module (3BSM). In normal flight, the nozzle points rearwards, propelling the aircraft forwards at speeds of up to Mach 1.6. When vertical thrust is required, the nozzle swivels downwards in less than two seconds, creating a vertical thrust of up to 20,000lb, equalling the force generated by the Liftfan.
Stabilising this force are two small ’roll posts’ in the wings. These ducts each direct 2,000lb of thrust during short take-off and vertical landing. Compact flap mechanics regulate the amount of thrust produced by each of the roll posts. During short take-off, the roll posts are opened and the clutch is engaged, the 3BSM is swivelled
’One of the big challenges for the LiftSystem is that we only use it for short take-off and landing,’ said Mehta. ’In a normal mission, that is only around five per cent of the total activity. So, at that point, we have to make sure the system is low weight, otherwise it’s not earning its keep in there.’
Inner workings:
Inner workings:schematic shows how the system will be positioned
For the blisks, Rolls-Royce is using hollow titanium blades. The technology, derived from civil turbofans, cuts weight by around 40 per cent. Mehta said the current version of the LiftSystem is about 320kg lighter than the original demonstrator but is also stronger and more reliable.
He added: ’This time last year, we did our first hover and first vertical landing. Those two events were the start of proving that all our work the preceding year was accurate. We did vertical landings and nothing untoward happened. We’ve since done 58 vertical landings, 79 hovers, 90 slow landings and 95 short take-offs, and nothing has gone wrong.’
“Our programme for one cycle uses as much power as a PlayStation running for 14 years”
NEIL MEHTA, ROLLS-ROYCE
Orders for the LiftSystem are expected to total more than 600, and the US Marine Corps and the Italian Navy have already acquired the system. There are still several years of flight tests remaining, and shipborne trials are due to take place later this year. Production of the system for use in training aircraft is under way and Rolls-Royce is delivering one LiftSystem per month.
Mehta said the UK is in a strong position to continue developing the technology. ’We developed the Pegasus engine that goes in the Harrier, and we’ve now developed the LiftSystem,’ he said. ’There are no other Western countries with that kind of expertise.

Read more: http://www.theengineer.co.uk/in-depth/rolls-royce-develops-liftsystem-for-the-f35-b-joint-strike-fighter/1008008.article#ixzz1Hw4VULsI

Automotive Engineers Bend New Materials into Futuristic Shapes

New materials for car bodies may soon transform the auto industry. Auto engineers can mold these carbon-fiber-reinforced plastics into virtually any shape. The materials are both strong and light -- increasing fuel efficiency and safety at the same time.

TROY, Mich.-- Cars built entirely out of plastic could be the wave of the future, making metal a thing of the past when it comes to cars.
New, innovative cars made almost entirely of plastic are paving the way for what you may be driving in the future. Guan Chew, a mechanical engineer at Porsche Engineering Services in Troy, Mich., says, "With plastics you can design cars which are very bold, and that gives you an advantage to sell nicer cars."
Plastics have gained a lot of ground over traditional metals used in cars, making it possible to build almost an entire vehicle completely of non-metal material. Paul Ritchie, CEO and engineer at Porsche Engineering Services, says: "The Carrera GT is what we would refer to as a proving ground for one of our new materials. It's made essentially from reinforced plastic."
Mechanical engineers use a lightweight, high-strength aerospace material called carbon-fiber-reinforced plastic. It's used in the doors, hoods, fenders, chasis and also in support frames for the engine and transmission.
"You can mold the plastics into very complicated shapes that maybe you can't do in steel," Chew says. Looks aren't the only perks of plastic; plastics help cars lose weight to go farther on fuel.
New materials, like plastic, are usually tested on high-end vehicles first. Once the materials are proven to be more efficient and cost effective, they eventually filter down to affordable consumer vehicles.
BACKGROUND: Student designers at the College for Creative Studies are creating new plastic polymer materials as alternatives for automobile elements typically made of steel. The designs were part of a semester-long project sponsored by the American Plastics Council and the automotive division of the Society of Plastics Engineers.
ADVANTAGES: Among other advantages, plastics can significantly reduce the weight of a vehicle, improving fuel efficiency by reducing drag, and also cutting down on emissions. Because plastic can be more easily molded, components can be tailored for more comfortable human-ergonomic features, as well as more streamlined, aerodynamic shapes. Less material can be used than with steel components, and the durability of plastics results in a longer, more reliable vehicle lifetime.
ABOUT PLASTICS: Plastics are a type of polymer, a chemical substance made up of many very large, chain-shaped molecules. These molecules in turn form thousands of repeating units, much like the links in a chain. Different plastics are made by linking together different monomers into different length chains. Mixing polymers with various additives gives them many useful properties, which is why plastics are used so often in our everyday lives. Thermoplastics soften with heat and harden when cooled, such as polyvinylchloride (PVC) and Teflon. They are used in food packaging, milk and water bottles, electrical insulation, carpet fibers, and credit cards, among other applications. Thermosetting plastics harden with heat, such as epoxy and polyester. They can be found in mattresses, cushions, varnishes, glues, and coatings on electrical circuits.
http://www.sciencedaily.com/videos/2006/0211-cars_of_the_future_plastic_makes_perfect.htm#

Nano-Bricks' May Help Build Better Packaging to Keep Foods Fresher

ScienceDaily (Mar. 27, 2011) — Scientists are reporting on a new material containing an ingredient used to make bricks that shows promise as a transparent coating for improving the strength and performance of plastic food packaging. Called "nano-bricks," the film even looks like bricks and mortar under a microscope, they say. The coating could help foods and beverages stay fresh and flavorful longer and may replace some foil packaging currently in use, they note. The scientists described the new, eco-friendly material in Anaheim, California at the 241st National Meeting and Exposition of the American Chemical Society (ACS) on March 27.
Ordinary plastic soda bottles tend to loose their fizz after just a few months of storage on grocery store shelves. If manufacturers apply the new coating to these bottles, the material could slow the loss of carbon dioxide gas and help sodas stay bubbly for several more months or even years, the scientists said. The coating could also extend the shelf life for those portable food packages known as MREs (Meal, Ready to Eat) that sustain soldiers in the field, with the added benefit of being microwavable, they noted. Although made to last for at least three years, their shelf life can drop to as little as three months when exposed to harsh conditions such as high heat.
"This is a new, 'outside of the box' technology that gives plastic the superior food preservation properties of glass," said Jaime Grunlan, Ph.D., who reported on the research. "It will give consumers tastier, longer lasting foods and help boost the food packaging industry."
Grunlan notes that manufacturers currently use a variety of advanced packaging materials to preserve foods and beverages. These materials include plastics that are coated with silicon oxide, a material similar to sand, that provide a barrier to oxygen that can speed food spoilage. Another example is the so-called metalized plastics -- plastics with a thin coating of metal or foil -- used in many potato chip bags.
These and other packaging materials have drawbacks, Grunlan said. Some plastics crack easily during transport or impact. Metalized plastics are non-transparent -- a turn-off to consumers who would like to be able to see their food prior to purchase. The presence of metal also prevents their use in the microwave. Food pouches made out of metal, such as MREs, provide impact resistance, but they lack both transparency and microwavability. Consumers need better food packaging options.
Grunlan has identified a promising alternative in the form of "nano-bricks." The new film combines particles of montmorillonite clay, a soil ingredient used to make bricks, with a variety of polymer materials. The resulting film is about 70 percent clay and contains a small amount of polymer, making it more eco-friendly than current plastics. The film is less than 100 nanometers thick -- or thousands of times thinner than the width of a single human hair -- and completely transparent to the naked-eye.
"When viewed under an electron microscope, the film looks like bricks and mortar," said Grunlan, an associate professor in the Department of Mechanical Engineering at Texas A&M University in College Station, Texas. "That's why we call it 'nano-bricks'."
When layered onto existing plastic packaging, it adds strength and provides an improved barrier to oxygen, he said. Grunlan demonstrated in lab studies that the film is 100 times less permeable to oxygen than existing silicon oxide coatings. This means that it's also likely to be a better oxygen barrier than a metal coating, whose permeability is similar to that of silicon oxide, the scientists noted.
"Others have added clay to polymer to reduce (gas) permeability, but they are thousands of times more permeable than our film," Grunlan said. "We have the most organized structure -- a nano-brick wall -- which is the source of this exceptional barrier. This is truly the most oxygen impermeable film in existence."
Grunlan is currently trying to improve the quality of the film to make it more appealing to packaging manufacturers, including making it more moisture resistant. He envisions that manufacturers will dip plastics in the coating or spray the coating onto plastics. In the future, he hopes to develop nano-brick films that block sunlight and contain antimicrobial substances to enhance packaging performance.
The new coating also shows promise for use in flexible electronics, scratch-resistant surfaces, tires, and sporting goods, Grunlan said. It could potentially help basketballs and footballs stay inflated longer than existing balls, he added.
http://www.sciencedaily.com/releases/2011/03/110327191031.htm

Friday, March 18, 2011

For Discovery, a farewell spin

Space shuttle Discovery's next mission will be to awe and inspire those who visit it at the Smithsonian Institution. NASA's workhorse shuttle was retired after completing its trip last week to the International Space Station -- that’s 39 missions covering 5,750 orbits, 150 million miles, and almost a year in space since it first lifted off in 1984. It's name was inspired by the exploring ships of the past, including one that plied the Hudson Bay in the early 1600s seeking a northwest passage from the Atlantic to the Pacific oceans. Discovery carried some of NASA's most-distinguished astronauts, including Eileen Collins, the first female commander, Sergei Krikalev, the first Russian to fly on a shuttle, and Senator John Glenn, who returned to space at 76. In its last mission, Discovery dropped Robonaut 2, the first dexterous humanoid robot in space, at the space station. 

Saturday, January 15, 2011

First Look at Flight in 2025

A First Look at Flight in 2025
01.13.11
 
Artist's concept of an aircraft in the year 2025. Artist's concept of an aircraft that could enter service in 2025 from the team led by Northrop Grumman. Credit: NASA/Northrop Grumman
›  Link to larger photo

Artist's concept of a 2025 aircraft from the team led by The Boeing Company.Artist's concept of an aircraft that could enter service in 2025 from the team led by The Boeing Company. Image credit: NASA/The Boeing Company
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Artist's concept of a more environmentally friendly aircraft to enter service in 2025.Artist's concept of an aircraft that could enter service in 2025 from the team led by Lockheed Martin. Image credit: NASA/Lockheed Martin
›  Link to larger photo

In late 2010, NASA awarded contracts to three teams — Lockheed Martin, Northrop Grumman, The Boeing Company — to study advanced concept designs for aircraft that could take to the skies in the year 2025.

At the time of the award, the team gave NASA a sneak peek of the particular design they plan to pursue.

Each design looks very different, but all final designs have to meet NASA's goals for less noise, cleaner exhaust and lower fuel consumption. Each aircraft has to be able to do all of those things at the same time, which requires a complex dance of tradeoffs between all of the new advanced technologies that will be on these vehicles.

The proposed aircraft will also have to operate safely in a more modernized air traffic management system.

And each design has to fly up to 85 percent of the speed of sound; cover a range of approximately 7,000 miles; and carry between 50,000 and 100,000 pounds of payload, either passengers or cargo.

For the rest of this year, each team will be exploring, testing, simulating, keeping and discarding innovations and technologies to make their design a winner.

How different will the final designs look from these initial glimpses?

Check back and see.

›  Read About Aircraft Designs for 2035
 

Tuesday, January 4, 2011

Impregnating plastics with carbon dioxide

Everyone has heard that carbon dioxide is responsible for global warming. But the gas also has some positive characteristics. Researchers are now impregnating plastics with compressed CO2 in a process that could lead to new applications ranging from colored contact lenses to bacteria-resistant door handles.
CO2 is more than just a waste product. In fact, it has a variety of uses: the chemical industry makes use of this colorless gas to produce urea, methanol and salicylic acid. Urea is a fertilizer, methanol is a fuel additive, and salicylic acid is an ingredient in aspirin.
Researchers at the Fraunhofer Institute for Environmental, Safety and Energy Technology UMSICHT in Oberhausen are pursuing a new idea by testing how carbon dioxide can be used to impregnate plastics. At a temperature of 30.1 degrees Celsius and a pressure of 73.8 bar, CO2 goes into a supercritical state that gives the gas solvent-like properties. In this state, it can be introduced into polymers, or act as a “carrier” in which dyes, additives, medical compounds and other substances can be dissolved. “We pump liquid carbon dioxide into a high-pressure container with the plastic components that are to be impregnated, then steadily increase the temperature and the pressure until the gas reaches the supercritical state. When that state is reached, we increase the pressure further. At 170 bar, pigment in powder form dissolves completely in the CO2 and then diffuses with the gas into the plastic. The whole process only takes a few minutes. When the container is opened, the gas escapes through the surface of the polymer but the pigment stays behind and cannot subsequently be wiped off,” explains Dipl.-Ing. Manfred Renner, a scientist at Fraunhofer UMSICHT.
In tests, the researchers have even managed to impregnate polycarbonate with nanoparticles that give it antibacterial properties. E-coli bacteria, placed on the plastic’s surface in the institute’s own high-pressure laboratory, were killed off completely – a useful function that could be applied to door handles impregnated with the same nanoparticles. Tests conducted with silica and with the anti-inflammatory active pharmaceutical ingredient flurbiprofen were also successful. “Our process is suitable for impregnating partially crystalline and amorphous polymers such as nylon, TPE, TPU, PP and polycarbonate,” states Renner, “but it cannot be applied to crystalline polymers.”
The process holds enormous potential, as carbon dioxide is non-flammable, non-toxic and inexpensive. Whilst it shows solvent-like properties, it does not have the same harmful effects on health and on the environment as the solvents that are used in paints, for example. Painted surfaces are also easily damaged and are not scratch-resistant. Conventional processes for impregnating plastics and giving them new functions have numerous drawbacks. Injection molding, for instance, does not permit the introduction of heat-sensitive substances such as fire retardants or UV stabilizers. Many dyes change color; purple turns black. “Our method allows us to customize high-value plastic components and lifestyle products such as mobile phone shells. The best about it is that the color, additive or active ingredient is introduced into layers near the surface at temperatures far below the material’s melting point, in an environ mentally friendly manner that does away with the need for aggressive solvents ,” says Renner. The process could, for example, be used to dye contact lenses – and lenses could even be enriched with pharmaceutical compounds that would then be slowly released to the eye throughout the day, representing an alternative to repeated applications of eye drops for the treatment of glaucoma. According to the scientist, this new impregnation method is suitable for a broad range of new applications.