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    Powerelectronics 542 072511energy 0
    1. Archive

    EE&T News: July 25, 2010

    July 27, 2011
    Beating the summer heat
    Wireless Version Web Version Dont miss an issue: ADD TO YOUR SAFE SENDER LIST
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    July 25, 2011 Issue:

    • Beating the summer heat
    • Solid tires: Next energy efficiency measure?
    • Smart phone apps for energy
    • EV race car sets a record
    • How to measure LED lamp life
    • Energy shorts
    • Featured video: Energy Star for lighting
    • Bulk power dc/dc supply
    • General-purpose ac motors
    • Shaft-locking devices
    • Wind-energy sensors

    Beating the summer heat

    It is a lot easier to stay cool in the summer heat when your front door has E-stop glass and is as thick as that of a bank vault. That's one of tricks in a Smart Home we toured recently. We shot a video of our tour which will be up soon. Meanwhile you can see our write up here: eetweb.com/applications/SmartHome/index.html
    As always, send your energy efficiency news to us at [email protected]

    FEATURED CONTENT

    Solid tires: Next energy efficiency measure?

    The next generation of super efficient vehicle tires could be made from polyurethane. At least that is the claim of inventor Richard Steinke, CEO of Amerityre Corp. in Boulder City, Nev. He says he's devised a manufacturing process for building passenger and light truck tires made from solid elastomer. The resulting tires will far outlast conventional designs, run flat at high speeds for hundreds of miles, and have a low rolling resistance to boot. READ MORE

    ADVERTISEMENT
    Energy Efficiency Expo September 20-21 in Nashville
    Eetweb Com Images 072511 Energy
    Energy Efficiency Expo 2011 is a trade fair showcasing products and services to help organizations reduce their energy consumption and become more energy-efficient. The event is designed to address the needs of managers and engineers who are responsible for facilities, manufacturing and industrial operations, equipment and machinery, as well as product and system designers. Numerous educational sessions will run concurrently with the exhibition, allowing attendees to obtain more in-depth information on specific areas of energy efficiency. www.energyefficiencyexpo2011.com

    Smart phone apps for energy

    Among the latest smart phone apps in the energy field are a CFL Light Bulb Savings Calculator, a primer on the physics of energy, and a free tool that calculates the performance of a carbon-neutral office building design. READ MORE

    ADVERTISEMENT
    Eetweb Com Images 072511 Ebm

    EV race car sets a record

    Enews Penton Com Enews Energy Energyefficiency 2011 07 25 72511 Eet News Ev Race Car Sets Record Graphic
    It took only 1:38.858 for an electric race car called the EV-X11 to traverse one 2.3-mile lap at the Mazda Leguna Seca racetrack in Monterey, Calif. This is a new lap record at the track for electrics. The milestone took place at the 3rd annual REFUEL - Clean Power Motorsports Event recently. READ MORE

    How to measure LED lamp life

    Enews Penton Com Enews Energy Energyefficiency 2011 07 25 72511 Eet News How Measure Led Lamp Life Graphic
    There has been a lot of discussion about the issue of measuring the lifetime of solid-state lighting. Standards in this area are probably still in the future. A recent report produced by a working group under the auspices of DoE and the Next Generation Lighting Industry Alliance (NGLIA) reflects the most current thinking on LED lamp lifetime. READ MORE
    ADVERTISEMENT
    Miniature Inertial Sensor Combines AHRS with Onboard GPS
    Eetweb Com Images 062711 Microstrain
    MicroStrain's 3DM-GX3® -35 is a miniature, lightweight sensor (23 grams) featuring a high quality attitude heading reference system (AHRS) with an onboard GPS receiver, providing a cost effective, high precision solution for navigation applications. Click here for more details

    Energy shorts

    Here comes a new energy act
    Energy education via online video
    New Energy Star specs for dishwashers, furnaces
    Modern metering, old grid
    Legally-enforced performance standards for buildings?
    Energy myths: Renewables and CAFE
    Energy figures: Ice makers, LED lighting, wind turbines

    Featured video: Energy Star for lighting

    Enews Penton Com Enews Energy Energyefficiency 2011 07 25 72511 Eet News Featured Video Energy Star Graphic
    At EE&T's Illumination Summit, EPA's Energy Star marketing manager Taylor Jantz-Sell broke down the basic program requirements for existing Energy Star CFL, Integral LED Lamp, and Solid-State Lighting Luminaires programs in the wake of third-party testing requirements. You can watch her presentation here.

    NEW PRODUCTS

    Bulk power dc/dc supply

    Enews Penton Com Enews Energy Energyefficiency 2011 07 25 72511 Eet News Bulk Power Dcdc Supply Graphic
    Designed to deliver bulk power to 54-Vdc distributed-power applications, the D1U4CS front-end 2,100-W dc/dc power supply is 93% efficient at half load power. With a floating output, users can wire the power supply in a 54-V configuration for data centers or –54-V configuration for telco central-office environments. A 5-Vdc, 0.75-A standby output is also provided. Capable of operating from –40 to –72 Vdc, the 1U unit has a power density of 24.3 W/cu in. Two internal fans provide forced air cooling. The D1U4CS is N+1 redundant, hot-swappable, and capable of droop current sharing and has a comprehensive set of power control, logic signaling, and operational status functions. The supply automatically recovers from overcurrent and overtemperature faults.Murata Power Solutions Inc.

    General-purpose ac motors

    Enews Penton Com Enews Energy Energyefficiency 2011 07 25 72511 Eet News Generalpurpose Ac Motors Graphic
    Cast-iron three-phase premium-efficiency motors are available in horsepower ranges from 1 to 200 hp, with speeds of 1,200, 1,800, and 3,600 rpm. The motors are electrically reversible. The industrial-duty T-frame and TC-frame TEFC motors feature ribbed cast-iron frames for maximum cooling, full-frame-length cast-iron mounting feet, junction boxes with rubber gasket, and a rubber dust cover. Motor sizes 10 hp and lower come with maintenance-free bearings. Larger motors feature ball or roller bearings.AutomationDirect

    Shaft-locking devices

    Enews Penton Com Enews Energy Energyefficiency 2011 07 25 72511 Eet News Shaftlocking Devices Graphic
    Ameriloc wind-turbine shaft-locking devices provide secure shaft/hub connections. The MLD (mechanical-locking devices) and HLD (hydraulic-locking devices) are custom engineered and manufactured for years of trouble-free service. The HLD offers faster installation. With larger diameters, such as 20.8 in., the HLD can be tensioned within minutes, compared to the several hours needed for a mechanical-locking device. A hydraulic pump, required for assembly, can be a stationary unit, but a hydraulic hand pump can also be used for tensioning at difficult-to-reach places, such as the wind-turbine turret. The MLD eliminates the need for keyways or splines, provides unlimited shaft positioning, and features zero backlash, reduced shaft stress, and high contact pressure for greater torque. It can fit into smaller installations and only requires standard tools to assemble. Features include torque up to 4,425,372 lb-ft, outer diameters up to 57.1 in, and shaft diameters up to 29.5 in.Ameridrives Couplings

    Wind-energy sensors

    Enews Penton Com Enews Energy Energyefficiency 2011 07 25 72511 Eet News Windenergy Sensors Graphic
    Sensors Technology for Wind Energy Applications provides an overview of sensing technologies for wind-energy applications. The brochure contains illustrations of the technologies used in windmill applications, including pitch control; yaw positioning; generator rpm monitoring; brake-pad position and wear monitoring; rotor/hub angular position detection; cable-twist sensing; service hoist control; main shaft-deflection monitoring; level monitoring for gearbox lubrication and coolants; and lift-cab position detection.Pepperl+Fuchs
    Today's Energy Efficiency News update brought to you by:
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