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Tweaking Flight Paths and Landings Can Cut Airline Fuel Use by 15 Percent

Southwest Airlines has rolled out a new set of guidelines for flight paths and landings for its aircraft at 11 airports that has resulted in fuel savings of five to 15 percent per flight.  The new guidelines called Required Navigation Performance (RNP) could be introduced to all airports and airlines in the coming years.

The RNP procedures change flight patterns in two major ways:  they allow aircraft to track much tighter flight paths than current traffic control systems require and they also call for a continuous glide down to landing opposed to the punctuated, step-down approach mainly used.  These seemingly small tweaks have added up to major fuel savings -- already saving Southwest $11 million in fuel costs a year just at the initial 11 airports and could save up to $60 million a year when extended to price of cialis all of its airports.

In an industry that accounts for two percent of global greenhouse gas emissions, those fuel savings will also amount to a nice reduction in emissions.

GE Aviation has been testing RNP technology for airplanes and Boeing has outfitted 345 of its 737-700s with the brand name cialis overnight technology supporting those flight patterns.  The Federal Aviation Administration is hoping to get RNP procedures, as well as other efficiency measures, into all of the country's airports soon, although the upgrade and requisite training will likely cost $6 billion - $7 billion.

via Earth2Tech


US Army Adopts Green Building Standard


The various branches of the US military are adopting green practices and are helping advance sustainable technologies. The latest development comes with the announcement that the United States Army has incorporated green building standards into its day-to-day practices.

The ASHRAE 189.1 standard is a green building standard written in the form and genuine viagra online manner of current building codes, rather than as a separate rating system, such as LEED. Standard 189.1 was developed with the cooperation of ASHRAE, the professional organization of lowest price cheap discount cialis professional mechanical engineers, US Green Building Council, and IESNA, the professional organization of lighting engineers, as well as the International Code Council.

Buildings built to meet Standard 189.1 have a weighted average site energy savings of 27 percent as compared to the standards of the current (2007) building energy code. Standard 189.1 also "requires that each building project be designed to be ready for renewable energy in the future." While it doesn't make buildings carbon neutral, it does set the stage for them to be converted and to cialas become net-zero energy in the future.

link: ASHRAE Standard 189.1

via: Buildings Magazine


Minnesota City Installs First Visible Light Communication System in U.S.

The municipal offices of St. Cloud, Minnesota are the first in the country to install a visible light communication system in place of Wi-Fi.  The system, which uses LED fixtures to connect office computers to the internet, is saving lots of energy, and the where to buy levitra cheap city of St. Cloud lots of money on energy bills.

The system was installed by LVX System, a Minnesota-based start-up and consists of LED lights that flicker thousands of we choice purchase cialis online times per second at speeds undetectable by the human eye.  The flickering of light communicates binary code to special modems attached to computers below (off is zero, on is one) that then transmit data back to the fixtures where a sensor receives the data and transmits it over the internet.

According to best way to take cialis LVX, the systems save 30 to 80 percent on lighting costs, usually enough to match or mostly pay for the internet service.  One of the LED fixtures uses about 36 watts of power compared to 100 watts used by a similar fluorescent office lighting fixture.

LVX sees the technology as not only an energy-effiicient and cost-effective alternative to Wi-Fi, but a solution to overcrowded Wi-Fi networks and the slower connections they create.

Right now, the LVX system can transmit about 3 Mbps, roughly the speed of a residential DSL line. So, it's not exactly ready to be swapped in for Wi-Fi in most businesses, but LVX expects to increase that speed. The company is also working on making smart lights that brighten and dim depending on available natural light and buying cialis online canada turn off automatically when a room empties.

via AP


New Molecule Could Create 30% More Efficient Rocket Fuel

A newly discovered molecule called trinitramid could be the buy levitra low price key to a future rocket fuel that is 30 percent more efficient than current rocket fuel.

Scientists at Royal Institute of Technology in Sweden discovered this new molecule in the nitrogen oxide group -- only eight such compounds are known to levitra canadian pharmacy include only nitrogen and oxygen -- while doing research on viagra mail order new rocket fuels.

The scientists realized that the new compound could be stable in solid form and, if so, could lead to rocket fuel that is 20 - 30 percent more efficient, could dramatically cut the greenhouse gas emissions from a shuttle launch and support a rocket with a much larger payload.  A typical rocket launch entails emissions equivalent to 550 tons of concentrated hydrochloric acid.

The research team has been able to produce enough of mexico viagra no prescription the compound in a test tube for it to be detectable, but more will have to be produced and more tests will have to be conducted before its deemed stable enough.

via Physorg


DOE Promotes Updating Building Codes


The US Department of Energy (DOE) is working with 24 states across the country to support the adoption of updated building codes which incorporate increased energy-efficiency requirements. $7 million is being apportioned in grants of $150,000 to $350,000 to assist the states, who have agreed to work with DOE, to "advance adoption, training, and compliance for the updated building codes."

"As part of the Administration’s broad efforts to tramadol mail help families and businesses save money by saving energy, these awards will help states and local communities significantly cut the energy intensity of the nation’s buildings sector, which accounts for more than 40 percent of the energy consumed in the U.S." according to the agency's press release.

Energy efficiency in building codes varies from state to state. Although consensus organizations such as the International Code Council develop new standards on an ongoing schedule, it takes time for individual states to adopt the new codes and put them into law, so most building codes lag behind the most recent standards. Once new codes are adopted, consumers and when will levitra be available as a generic builders need to be aware of the new requirements, as well as the benefits from following the discount generic levitra code. In addition to the support for adoption of the newer codes, the DOE program is also targeting a 90% compliance rate in applying the new codes to new buildings.

The Building Energy Code program has resulted in an estimated $16 billion in savings since the program’s start 20 years ago. It is helping to save money for U.S. consumers, dramatically reduce energy use and carbon pollution, and create jobs as part of America’s clean energy economy.

Investing in energy-efficient buildings will pay back in savings for decades to come. Of course, these energy codes are just the minimum standards, and better buildings should be built with more than the bare requirements of online pharmacies that sell tramadol even the most current energy code.

via: EERE News

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