EE&T News: August 24, 2010

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August 24, 2010 Issue:

• Crank up the compressorless A/C

• Will your next car have an A/C compressor?

• What most people think they know about energy efficiency is probably wrong

• Appliances more efficient in some countries than in others

• Innovative LED panels in the limelight

• Energy shorts

• Energy-saving seal

Crank up the compressorless A/C

With the worst of the summer heat apparently behind us, one lingering reminder of the experience is the continuing work on more efficient air conditioning schemes. And with back-to-school time comes our September-October print issue. You can find a digital version here:
viewer.zmags.com/publication/3bbdb9ac
As always, send your energy efficiency news to us at [email protected] -- Leland Teschler, Editor Read More

Will your next car have an A/C compressor?

Well, maybe not. At least not if Sorption in the UK has anything to do with it. Researchers there claim they've come up with an adsorption-based air conditioning scheme that could eliminate the need for compressors in air conditioners and thus drastically boost fuel mileage. Moreover, their idea is more than just a lab model. READ MORE Read More

What most people think they know about energy efficiency is probably wrong

What takes more energy, making a can out of recycled aluminum or making a bottle out of recycled glass? If you think bottle recycling is the more energy efficient choice, you have a lot of company. You are among the majority of people who have misconceptions about what practices are the most energy efficient. So say researchers who hail from the Earth Institute and Center for Research on Environmental Decisions, Columbia University, Ohio State University, and Carnegie Mellon University. READ MORE Read More

Wireless Sensor Networks – An Introduction to Technologies and Architectures
This overview webcast from National Instruments provides an introduction to wireless sensor networks, including application areas and typical system components. The webcast then explores technology considerations for wireless sensor networks, including network topologies, communication standards, and power consumption. View webcast now.

Appliances more efficient in some countries than in others

The International Energy Agency recently completed collecting data on TVs and on fridges and freezers to compare the performance of products across national boundaries and identify potential key factors that may cause these differences. The commission found relatively little difference in energy consumption among cold appliances in various countries. They did, however, find wide disparities in rates of improvement in efficiencies among countries. READ MORE Read More

Boker's Free 2010 Washer Catalog

Boker's complimentary 2010 Washer Catalog features more than 24,000 non-standard flat washer sizes available with no tooling charges. Outside diameters of 0.080" to 5.140", a broad range of IDs and thicknesses, as well as 2,000 material options provide endless possibilities. Materials include low-carbon sheet steel, various spring steels, stainless steel, aluminum, brass, copper, nickel silver and non-metallics. ISO 9001:2008 Registeredwww.bokers.com/eete

Innovative LED panels in the limelight

The typical way of creating a light panel with LEDs is to just put some kind of diffusing material in front of the light source. This eliminates the point light source but has the drawback of blocking a lot of the LED light, up to 40%. A start-up manufacturer in Israel called Oree Inc. has devised an LED light panel that gets away from the blocking problems of diffusion material. The details of its technique are a bit sketchy, but basically it embeds LED chips in a super-thin plastic that functions as a light guide. READ MORE Read More

Energy shorts

That candle is really a CFL

Consumers don't believe corporations' assertions about "going green"

Now lighting has a sustainability certification

The energy-efficient mainframe

EnergyStar ratings for homes?

Solar and wind-gnerated power balance out, at least in some places Read More

NEW PRODUCTS

Energy-saving seal

MileMaker seals offer friction-reducing and fuel-saving benefits for OE and aftermarket heavy-duty truck and trailer wheel and axle applications. The seals operate with over 50% less torque than comparable seals, resulting in over $1,000 in diesel-fuel savings over the life of the seal. The seal, developed using an elastomer material that withstands temperatures to 350°F, is compatible with mineral and synthetic oils and grease. An integrated lathed, ground and polished wear-sleeve running surface reduces friction, lowers torque, and promotes cooler running for the main seal lip. The seal’s special dirt-exclusion fins assist with keeping contamination away from the seal. The lubed rubber OD and ID design eases installation force, resulting in less heat generation, increased seal life, and sealing of minor hub or spindle imperfections. The design’s low internal torque, aided by an internal lubricant, results in lower internal heat generation, excellent wear resistance, and improved fuel economy.Simrit Div., Freudenberg-NOK Read More


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