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    EE&T News: June 16, 2010

    June 16, 2010
    Energy from the waves
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    June 16, 2010 Issue:
    • Got ideas about oil spills?
    • Energy from the waves
    • Another try at a legislative spiff for efficient motors
    • An efficiency standard for thermostats
    • No shortage of opinions about energy
    • Energy shorts
    • Hot but efficient
    • Got lighting ideas? Tell the DoE
    • EE&T Magazine is using Twitter and LinkedIn

    Got ideas about oil spills?

    The BP oil spill in the gulf has a lot of engineers, and a lot of other people as well, musing about stemming the flow of oil -- so much so that BP has some 35 engineers devoted full-time just to managing the ideas coming in from the public. According to published reports, the vast majority of ideas are either hairbrained or have already been tried. On another note, you can access the digital edition of our distinctly non-hairbrained May-June issue here:
    viewer.zmags.com/publication/7d4a13a7
    -- Leland Teschler, Editor Read More

    FEATURED CONTENT

    Energy from the waves

    The world will know a lot more about how practical wavepower is as an energy source this year if a second-generation wave power device called Oyster 2 comes online as scheduled. The Oyster design is basically a buoyant hinged flap tethered to the ocean floor. It uses the force of the ocean’s waves to push the flap's two hydraulic pistons backwards and forwards, driving fresh water via an underground pipe to an onshore hydroelectric turbine. READ MORE Read More
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    Another try at a legislative spiff for efficient motors

    It looks like a piece of legislation long sought by motor makers may be beginning its trek through the law-making process. The new legislation would create a $700 million motor-rebate program for energy-efficient motors. This "crush for credit" legislative proposal has been introduced in the Senate as S. 3436. The proposal creates a federal rebate program that will provide a $25 per horsepower rebate for the purchase of NEMA Premium energy-efficient motors. READ MORE Read More

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    Electro-Sensor’s TT420 Temperature Transmitters and ST420 Shaft Tachometers are pre-calibrated, proven solutions that install fast and perform anywhere, providing rugged and reliable monitoring solutions for your toughest machine environments. The TT420 combines a temperature sensor, signal conditioning, and 2-wire loop-powered 4-20mA transmitter into one compact package. The ST420 detects magnetic pulses from a rotating shaft-mounted magnetic pulser target (disc or wrap) and outputs a smooth, continuous 4-20mA analog signal in direct proportion to the pulse frequency (rotating shaft speed).www.electro-sensors.com

    An efficiency standard for thermostats

    There's a new certification and labeling program called Energy Aware that targets high-performance programmable thermostats found in homes. Devised by the National Electrical Manufacturers Association, the program aims to provide assistance in choosing programmable thermostats that can best help reduce energy usage while maintaining comfortable indoor temperatures. READ MORE Read More

    No shortage of opinions about energy

    EE&T's newly opened blog area contains this recent entry about incandescent bulbs: "Though incandescent bulbs are on their way to being outlawed, it appears that at least one kind of filament bulb will escape the ban because its energy use is relatively small. The filament bulbs you often see in trendy restaurants are specialty items that are still going to be with us for awhile." READ MORE Read More

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    Energy shorts

    Yes, it can happen. A wind-powered car can go faster than the wind pushing it

    The reality of daylight harvesting: It saves energy, sometimes

    Distribution transformers are getting upgraded efficiency standards

    Looks like a kite, generates power from the wind

    Digital power factor correction (PFC) controller ICs are said to surpass analog PFCs on several fronts

    Vote of confidence for Smart Grid-capable thermostats

    A synchronous MOSFET half bridge boasts greater than 90% efficiency at 25 A
    Read More

    LED LIGHTING

    Hot but efficient

    LEDs are typically tested for efficiency at 25%deg;C. But the resulting data isn't of much use for designing applications like down lights and retrofit lamps, because most LEDs have significant light output and efficacy losses at the 80 to 100deg;C internal temperatures characterizing these uses. That's not so for new Luxeon Rebel emitters, says their manufacturer Philips Lumileds. The new LEDs maintain more than 90% of their light and more than 95% of their datasheet efficacy even at junction temperatures of 85deg;C. READ MORE Read More
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    Got lighting ideas? Tell the DoE

    The Dept. of Energy will select projects to receive up to $25 million to advance research, development, and market adoption of solid-state lighting technology. The funding is directed toward two existing DOE SSL research and development program areas for Core Technology Research and Product Development. READ MORE Read More

    NEWS FROM EE&T

    EE&T Magazine is using Twitter and LinkedIn

    Twitter is a free service that lets you keep in touch with people through the exchange of quick, frequent answers to one simple question: What are you doing? Join today to start receiving EE&TMagazine's tweets. LinkedIn is a place for millions of professionals to exchange information, ideas and opportunities.Register to be a member of the Energy Efficiency & Technology group! Read More

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    Today's Energy Efficiency News update brought to you by:
    International Rectifier

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