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NREL Invents 90% More Efficient Air Conditioning Unit

NREL is always discovering and generic form of viagra creating amazing things.  This time, the team of scientists has invented an air conditioning process that is 90 percent more efficient than the cod tramadol saturday prescription top of the line units available today.

Air conditioning is levitra online canada responsible for about five percent of the nation's annual energy use, so in addition to better insulated and better designed buildings, more efficient air conditioning units are a necessary stepping stone on our way to viagra price in canada more efficient buildings.

The air conditioning process uses "membranes, evaporative cooling and liquid desiccants" to remove heat from the air.  Evaporative cooling is a process that has only worked well in dry climates in the past because the cooled air has added humidity.  NREL has solved that issue in their DEVap technology through the addition of the liquid desiccants, which remove humidity from the cooled air.

Another benefit of the DEVap process is that it uses salt solutions instead of the refrigerants chlorofluorocarbons (CFCs) or hydrochlorofluorocarbons (HCFSs), which contribute about 2,000 pounds of CO2 per pound of refrigerant.

The DEVap technology will be under development for the next five years, but once NREL has it perfected, it will license it for commercial use.  Luckily, the unit is designed to replace existing units with little changes necessary, so these could easily be phased in when the cialis discussionsdiscount priced cialis technology is ready.

via MIT Technology Review



New World's Largest Airship 'Stratellite'


In a further sign that airships are making a comeback, the first model of what is now the world's largest airship has been recently launched. The Bullet 580 measures 235 feet (more than 71 meters) in length, more than 40 feet longer than the Goodyear blimp (though not nearly as large as airships of the past such as the Hindenburg or the USS Macon).

Compared to heavier-than-air aircraft, airships are relatively slow, lumbering vehicles. But what they lack in speed they can more than make up for in the time they are able to stay aloft. At present, the Bullet 580 can stay aloft for more than 48 hours, and it is expected it will eventually be able to remain in flight for more than a week. The Bullet 580 can fly at faster than lumbering speeds, as well - it can go up to 80 mph (129 kph) and has a cruising speed of 35 to 40 mph (55 to 65 kph).

The ability to stay in the air for long periods of time is very good site buy cialis online canadian phamacy useful for both military as well as civilian uses. A high-altitude airship acting as a 'stratellite' fills a gap between conventional aircraft and satellites. The airship is orders of canadian pharmacy scam magnitude less expensive to launch than a satellite would be. It is capable of carrying a payload of up to 2000 pounds (905 kg) to an altitude of 20,000 feet (6,100 meters). Applications for such long-duration airships include use for surveilance in defense and security applications, survey of natural resources, agriculture, and forest fires, and telecommunications.

The Bullet 580 is expected to have a price of roughly $8 million.

via: MNN


Affordable, High-Performance LED Bulbs Finally Hitting the Market

Major lighting companies are working tirelessly towards becoming the first to own the LED market.  The super-effiicient light source is the enter site selling levitra online future of lighting, but so far, for most consumers the available LED bulbs have been too expensive and dimmer than the incandescent bulbs we're used to.

But that seems to be changing.  In the next few months, 60-watt equivalent bulbs in the $30 - $40 price range will be hitting the shelves.  In comparison, just two years ago, a 60-watt equivalent cost $90 and a 100-watt dimmable bulb went for $360.

Osram Sylvania is releasing an LED bulb in August that emits 810 lumens (similar to a 60-watt incandescent) that only consumes 12 watts and should last 12 times longer than an incandescent bulb.  That bulb should cost around $40.  The company is also releasing a 75-watt equivalent next year.

Lighting Science will soon start selling a 770 lumen, 9 watt LED bulb at Home Depot with a price in the low $30 range.  Other lighting companies like GE, Panasonic, Lemnis Lighting and private uk viagra prescription Philips are all scrambling to hit a similar lumen-per-price ratio.

Why is $30 for a 60-watt equivalent an important milestone?  Well, first-off, the 60-watt bulb is the best-selling incandescent, so bringing an equivalent consumer LED bulb into an affordable price range is viagra australia key.  Secondly, industry experts say that once LEDs hit $20, utilities could give them away to customers because the energy saved would cover the cost of viagra buy now the bulbs and would allow them to postpone bringing on new power plants.  So, getting the cost of these bulbs into the $30 range means that a $20 bulb is right around the corner.

via Greentech Media



Ahead of Schedule, An LED Bulb for us All

geledbulbJust yesterday we brought you news of Cree's new module that will soon be working it's way into lighting fixtures. We asked when we'd see their technology taking the levitra on line canada shape of high-brightness bulbs that could fit in for home use.

The answer was within the next year or two. But today GE announced that they'll have an LED bulb replacement using Cree's LEDs available by the end of 2010. Now, let's be clear, this joint project from Cree and GE isn't as bright or as technologically advanced as the module we discussed yesterday, but it is a huge step forward for LED technology and I can't wait to buy cialis discount get my hands on one (or a dozen).

These bulbs will fit into any traditional bulb socket and will produce about as much light as a 40 watt bulb. It consumes just 9 watts and lasts up to 17 years. It doesn't contain any hazardous substances but will cost up to $50. 

Of course, over the life of the bulb, it will be cheaper than incandescents, but when you just want a new lightbulb, it's hard to choose the $50 one over the $0.50 one.

Cree Modules to Speed Adoption of LED Lighting

Cree, one of levitra from canada the world leaders in LED-for-lighting technology, is bringing a new product to market that could help rapidly increase the adoption of LED lighting. LEDs are complicated, the drivers to control them, the optics to focus them, even the bodies to house them have to tramadol 120 tabs $85 free shipping be specially designed for heat management. These are all things that the enter site cialis cheap canada manufacturers of lighting fixtures are not used to thinking about. They just take the light, plug into into a power source, and it's supposed to work.

That's why Cree is going to be producing the LRM4 line of LED modules. Everything is included, so the folks designing and manufacturing the light fixtures don't have to be experts in semiconductors to make it work.

The LRM4 is also feature Cree's new "TrueWhite" lighting technology. By combining specially tuned red and yellow LEDs (you can actually see them in the image above) Cree is able to match the warm light from a 65 watt incandescent bulb quite well. Other advantages over fluorescent lights include longer lifespan (over 12 years before the bulb dims more than 70%) full dimming capability and just try! buy levitra even higher efficiency.

Of course, the disadvantage is likely to be the discount online viagra price, which Cree wouldn't disclose in a recent interview.

The lights are directional, so they're only suitable for directional lighting applications like in-ceiling lighting and desk lamps. The modules will be built into various designs by manufacturers and then those products will be available for sale "soon," likely first at specialty lighting stores.

Finally, I had to ask Cree about traditional bulb applications and whether this high-quality, high-brightness, surprisingly awesome technology might make it's way into multi-directional, Edison socket formats they replied, "Those are coming. You will see those come over the course of the next year to order viagra viagra two years"

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