Thursday, September 27, 2012

Offshore Wind Turbines Could Meet Power Demands of Entire East Coast

A quantitative analysis of offshore wind energy on the U.S. East Coast finds that, in theory anyway, the strong winds there could potentially meet one third of the entire country's electrical demands.

The study, "East coast U.S. offshore and near shore wind energy potential" concluded that the offshore wind energy available in the Atlantic Ocean off of the east coast is sufficient for powering much of that region:

    "A major finding is that the strong winds off the USEC alone can theoretically power all of the annual coastal electricity demand from Florida to Maine (FL-to-ME) or about one-third of US electric power demand. With the exception of summer, all peak-time electricity demand could be satisfied in the states of Virginia through Maine (VA-to-ME) with OWE in those states’ waters."

The team used weather modeling to generate five years worth of hourly wind speed data for locations at 90 meters above the surface (the height that an offshore turbine would reach) and then added turbines into the model. The 140,000 5 MW wind turbines were "installed" at varying distances and depths, covering the area from Maine to Florida.

For their analysis, the team found that after figuring in the standard losses in turbine inefficiencies and transmission, offshore winds on the east coast could produce up to 1,372 TWh of electricity annually, and that even more importantly, it could produce it at the best time - during peak demand.

While we're a long time away from installing 140,000 offshore wind turbines, the data shows the potential is there, and could be used to help guide wind farm placement by locating areas with high wind energy potential near high population areas.

Tuesday, September 25, 2012

The Pros And Cons Of Using An Electric Vehicle

A lot of people are very interested in living a more green life, but are unaware of how to begin. While there are alternative energy sources, like solar and wind, there are also green habits that can be started today. This article will show you how to incorporate green energy into your life.

You can buy rechargeable batteries for simple household items, this can help you save money and uses less resources in the end. Traditional batteries get thrown into the trash, and that is very bad for the environment. By utilizing rechargeable batteries, you can help keep the environment safe, while saving some extra cash. Recharging and reusing your batteries can end up saving you hundreds in the long run.

It’s a great idea to seal the freezer and fridge so you don’t waste energy. Broken seals let the cold or hot air escape from your oven and fridge, wasting that energy and costing you money. Test how well your seal works by placing a piece of paper in the door, shutting it, and seeing if the paper slides out easily.

Install solar panels and reap the benefits easily. There are a few things to consider before installing them. How much sun is your house getting on average? If you home is shaded, the amount of energy collected from solar panels will be greatly reduced.

Use lids on pans and pots to save energy if you cook a lot. This helps keep the heat inside the pots, instead of escaping into your kitchen, which allows you to use lower heat settings on the stove.

Find a professional who is qualified to do the work. Gain as much knowledge about these systems before you decide to buy them. Avoid shady salesmen who will use unscrupulous tactics to sell systems they can’t prove are efficient.

If you are unable to completely power your home using solar power, consider installing solar panels to power at least the lighting in your home. A good place to start would be by replacing your hot water heater. Replacing this one appliance can save you a lot of money.

Use automatic motion detection sensors for lighting in your rooms. If nobody is using the room, the sensors will turn the lights off; this saves energy and money. Also remember to do this outside for your garage’s lighting, too.

Thursday, September 20, 2012

Alternative sources of energy to preserve the environment

Alternative sources of energy to preserve the environment is something new, but very important. The world is moving in the direction of clean and renewable sources of energy and the wind comes as a great option.

Wind power has been increasing its participation in global energy context. Studies of the World Wind Energy Association shows that 86 countries already use this renewable source to produce electricity.

The energy generated by wind has conquered countries to be absolutely clean, safe, renewable and doesn’t cause environmental problems. It interferes very little in agricultural production, allowing the towers to be installed inside private properties, causing no damage to the activities. The construction of a wind farm is much faster, taking about a year and a half to be complete.

The largest producers of wind power are China, United States, Germany, Spain, India, France, Italy, UK, Canada and Portugal.

Today, alternative sources are complementary to the existing systems, but it’s important to find the best ways to use them, because soon these will be the major  type of energy sources.

This way our society can evolve, working in harmony with the environment and enjoying what it has to offer. In this case, the wind!

Monday, September 17, 2012

Strengthen the life of the crushing plate to improve jaw crusher production efficiency

The jaw crusher is mainly used for preliminary crushing the ore material, it works relatively harsh environment, optimize and strengthen their constituent bodies need to master the necessary maintenance of the stability of the knowledge in order to improve efficiency in the production of equipment sex.

Jaw the broken broken plate life proceed from the design selection, assembly, use process improvement to strengthen strengthen cracker broken plate life, thereby enhancing the a jaw broken stone machine production efficiency, reduce production costs.

1, jaw crusher normal operation only after the feed production.

2, to be broken materials should be evenly added crusher cavity should be avoided the lateral feeding or filled feeding, in order to avoid unilateral overload or withstand overload.

Normal working hours, the bearing temperature rise should not exceed 30 ℃, the maximum temperature should not exceed 70 ° C. Jaw crusher over the temperature, should be immediately stopped, and to identify the reasons and to be eliminated.

4, parking, first stop feeding be broken cavity material completely discharged only after the power is turned off.

5, when broken, as a result of the crushing cavity material obstruction caused by parking, should immediately turn off the power to stop the run, jaw crusher crushing cavity materials to clean up before re starting.

SBM jaw crusher design in order to strengthen and extend the life of the jaw crusher jaw jaw designed to be the symmetric two paragraphs on the line, the moment worn can turn around and use the; large jaw crusher jaw a few pieces designed to be symmetrical with each other in order to wear the jaw transpose.

The materials and the direct effect of the jaw, crushing force crushing hard materials, leading to the installation jaw bolts vibrating loose nut, the increased wear and tear of the jaw and generate a great deal of noise, severe jaw off or broken equipment downtime, affecting the normal production. Can use the process to find ways for specific situations to solve specific problems, prevent wear increased jaw loose, broken, thus extending the life of the jaw, lower costs, and improve work efficiency.

The jaw crusher is characterized by the principle is simple, convenient and outstanding value for money, in practice, the mineral processing equipment in rough break model of choice. The jaw crusher uses a unique jaw head structure, sealing guarantee, effectively extending bearing life. The whole cast and the bearing housing, with a new assembly process, so in conjunction with the rack to perfect, and strive forward automation of mining machinery, equipment performance more prominent.

Thursday, September 13, 2012

Tig Welding Certification - Tips For Passing Aerospace Welding Tests

Some of you reading this are about to take your first TIG welding certification test in the aerospace industry. Maybe you are transitioning from another industry like pipe welding where you welded stainless and carbon steel pipe, or food service where you welded stainless steel sheet metal. Either way, let me tell you a few tips that might help you get ready:

Everything is thinner and smaller. The tig torch, electrode, filler wire, and possibly even the tig welding machine will be smaller than you are accustomed to. In pipe welding for example, a 1/8 inch rod is considered the big tig welding rod. In Aerospace tig welding, a 1/16 inch rod is big.

Everything needs to be cleaned better. All joints are normally x-rayed in an aerospace tig welding certification test. Metals like titanium, aluminum, and magnesium are prone to porosity. Remember the 3 C's ...clean, clean, clean. Especially important is filing the sheared edge of metal that will be welded. That sheared edge looks pretty clean but it is a trap for oil and corrosion products. File it and when you think you have filed it enough, file some more. 

Everything makes a difference. Little things like the size of your tack welds, how you position the test plates in the fixture, how much flow rate is used on the purge gas, angle of torch, angle of filler metal rod, what kind of abrasive you use to clean the metal, how pure the argon or other shielding gas get the picture.  Like my old coach used to tell me...nothing is fair, but everything  matters. 

Everything needs to be shielded better. The hot tip of the filler rod will put oxides in your puddle. You can get away with a little of that in pipe welding stainless and mild steel, but it will kill you when welding something like .020" 15-7 precipitation hardening stainless or .032" inconel 718. To keep the end of the rod perfectly shielded , use a tig cup that is at least 3/4 inch id. With a diffuser that provides a nice soft blanket of argon shielding to the puddle. ..and you need to test it on a scrap piece of titanium to make sure it is working before lighting up on your tig welding certification plates. 

About 1 amp per 1 thousands of thickness welded will get you in the ball park. Set the tig welding machine amperage accordingly plus about 10 more amps just in case and use the foot pedal to adjust. This will keep you out of trouble by limiting your amperage. usually a bead width of 4 times the thickness welded will get the penetration needed for butt welds. Use the smallest electrode that will get the job done.  And sharpen it really good with scratches running lengthwise. long tapered works better for really thin (.020") and less of a taper is better for thicker welds Use the smallest filler wire that will work with having to feed too much. Too big a tig welding rod will draw too much heat out of the puddle and will cause you to use more amperage than is required . Too small a filler wire will cause you to feed too much and you cant keep up.

Monday, September 10, 2012

Polyurethane matrix resin for automotive composites

With lightweighting in mind, automotive manufacturers are using more and more parts made from carbon fiber or glass fiber composites. Henkel has developed a polyurethane-based composite matrix resin that cures faster than the traditional epoxy resins.

Composites based on carbon fiber or glass fiber are gaining momentum in various application areas due to the opportunity for enormous weight savings over traditional part construction, with no loss in mechanical performance. Starting in aerospace where pre-impregnated fibers (prepregs) are manually laid up and then baked into composites, many different applications are now penetrating into the automotive industry. New manufacturing methods like resin transfer molding enable economic processes that are suited for high volume automotive production.

For the resin transfer molding process, Henkel has developed a new composite matrix resin based on polyurethane which enables improved economics and throughput in processing. Compared to standard epoxy matrix resins, the new Loctite MAX2 cures significantly faster. During injection, it also enables more efficient impregnation without stressing the fibers due to the lower viscosity of the resin.

The composite properties of Loctite MAX2 were specially developed to provide more flexibility as well as much higher impact resistance than traditional epoxy resins. Henkel is confident that this new generation of polyurethane matrix resins deliver significant benefits for fast and efficient manufacturing.

Friday, September 7, 2012

JinkoSolar to supply solar panels for PV system in South Africa

JinkoSolar will supply 4,Use of solar energy is one of the best alternative and people are looking for solar supplies at affordable prices. By looking out for the best Best Custom Solar Chargers, you will be able to provide your clients with quality products at very reasonable prices.The solar cells which are used to make the solar panels are of superior quality, and there would not be any chance of getting a complaint.You don't must mild up your property or organization just like an army installation in order to attain the very security China Power Bank Exporters look for. Motion sensor lighting that only light up the area through which movement is detected can show fundamental adequate defense in many circumstances without inviting the neighbors to complain about the never-ending daylight you manage to create.170 solar photovoltaic (PV) panels to power an off-grid 1MW utility scale photovoltaic system at a chrome mine located in South Africa's Limpopo province.Solea Renewables will be design, engineer and construct the PV project which will produce around 1.8 gigawatt hours of electricity annually.The electricity generated from the plant is expected to decrease the mine dependence on diesel during the day time for the next 20 to 30 years.Solea Renewables director VusiMhlanzi said the electricity generated from the PV plants, developed by the company will not only help the end-users and but will also reduce the growing demand the public utility Eskom faces.
"Wechose JinkoSolar panelsfor its superior performance and reliability, as seen in utility-scale installations across Asia, Europe, and Americas," Mhlanzi said."As the plant is expected to be completed by late October, 2012, the electricity generated by JinkoSolar quality solar panels will definitely reduce the mine's daytime diesel consumption while securing our client's with a natural long-term hedge against all rising costs of power."JinkoSolar chief executive officer Kangping Chen said, "We have great expectations for South Africa.Motion sensor lights on the outside of your home offer many benefits. Best Custom Solar bag enjoy the additional security these items provide both by lighting a path and by discouraging intruders from coming into a home. They also save electricity when compared to standard outdoor light which are left on all night or for long periods of time. The region's booming population, strong economic growth and abundant sunlight represent an exciting opportunity for solar and for JinkoSolar we look forward to working with Solea Renewables, an experienced EPC partner on this momentous project."
The initial 30megawatt solar energy generation signed between Kaduna State and a German company can be built and increased to 120mw over a period of time depending on the success of the first phase, the commissioner for rural and community development, Architect Isah Idris Umaru has said.Speaking in an interview with Sunday Trust, he said, "The initial megawatts we expect is 30 but that can be built and increased to 120mw over a period of time depending on the success of the first phase. So we want large site that accommodates the expansion needed to continue to increase the power.""The situation also brings to light the power that the city Metro network will consume once more networks become operational by 2015-16. The question that needs to be asked is whether the power utilities are in a position to supply the required power for smoothing running of services," a source said.

Tuesday, September 4, 2012

Carbon cilia is actual accomplished strands

Carbon cilia is actual accomplished strands of Carbon that can be askance calm and again woven. alike admitting anniversary cilia of Carbon laid cilia is thinner than a animal hair, it is acutely strong. It is bristles times as Able as animate but alone about one-third as heavy. It additionally has accomplished compactness strength. This agency that Carbon cilia can 'give' or amplitude absolutely a bit afore it comes apart. All of these appearance announce that cilia helmets are bigger Able to blot added of the force of an appulse than best added helmet materials. It is additionally far beneath acceptable that aciculate altar can access a Carbon cilia helmet shell.

Carbon cilia helmets are usually fabricated by agreement layers of cilia in a helmet carapace cast and again blanket the fibers with an Acrylic adhesive or some added blazon of plastic. In some cases, this action is done beneath aerial burden to accomplish an alike stronger laminate. The consistent articles are helmets that are lightweight, acutely Able barriers amid active and adamantine surfaces.

States with helmet laws on the books crave motorcyclists to abrasion helmets that accommodated assurance standards accustomed by the U.S. Department of Transportation (DOT). These standards accommodate things like minimum visibility, appulse force absorption, and bulk of face/head covered. afore the appearance of Carbon cilia helmets, helmets that met all the accustomed DOT belief could be absolutely beefy and heavy. The use of Carbon cilia has accustomed added breadth amid helmet designers to actualize some smaller, added automated styles that are adequate for the addition but still accommodate the assurance the DOT requires.