Blade Design for Wind Turbines (Part 1)

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Presentation about the challenges of blade design for wind turbines given at Windpower 2009, Chicago,wind powervented by Siemens Wind Power, the IntegralBlade® technology manufactures wind turbine blades in one piece using a closed process. The glass fiber reinforcement is laid out to dry using a special molding arrangement with a closed outer mold and an expanding inner mold. After completion of the lamination of the glass fiber, the epoxy resin is injected under a vacuum. Following this injection, the blade is hardened at a high temperature while still enclosed in the mold. Once the blade is hardened, it is removed from the outer mold, and the inner mold is collapsed with a vacuum and pulled from the blade. The result is a complete, seamless blade finished in one process. More: www.powergeneration.siemens.com

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Energy Efficient House Design – How To Design Energy Efficient House

www.SolarEnergyGuide.net – Energy Efficient House Design – How To Design Energy Efficient House This house in North Carolina features a passive solar design. ….. Promotes the use of energy-efficient and passive solar building design and construction. …Energy Savers Designing and Remodeling a Home Feb 24, 2009 … If you’d like to design an energy-efficient home, no matter what type of design, you should use what’s called the whole-house systems …USGBC joins top business leaders at the White House in support of the recovery … The Leadership in Energy and Environmental Design (LEED) Green Building …EERE Consumer’s Guide: Landscaping A Consumer’s Guide to Energy Efficiency and Renewable Energy … you can learn more about the following elements of an energy-efficient landscape design: ..Rocky Mountain Institute : Abundance By Design · Nature In the words of RMI’s chairman and chief scientist, Amory Lovins, In order to make cities cleaner and more energy efficient, there is a real need for a ..National Semiconductor · Electronic Parts National Semiconductor Home – Energy-efficient PowerWise analog solutions: … START HERE for a new and improved version of the PowerWise Design University. …federal tax credits for energy efficiencyhome energy efficiencymake your house energy efficientmake my house energy efficient making old house energy efficientenergy efficiency partnership homes Energy Efficient House Design – How To Design Energy Efficient Houseadvantages

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Overall Sustainable Design: Best Practice Award Winners

Presentations from winners of the Higher Education Energy Efficiency Partnership Program Best Practices Competition in the category of New Construction Best Overall Sustainable Design. Cal Poly San Luis Obispo presents on its Center for Sciences building design and UC Davis presents on the Veterinary Medicine 3B project. Series: Sustainability Conference: Working Our Way to Zero [9/2010] [Public Affairs] [Science] [Show ID: 18181]

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How To Build A Wind Generator With A Wind Turbine Design

A properly laid out wind turbine design is mandatory to build a wind generator, especially without any specific technical knowledge or DIY experience. There is no reason to pay over the odds for ready made windmills when a weekend is all is needed for a DIY construction.

To build a wind generator it is necessary to follow few steps:
1) Find the right place for maximum exposure to the wind. A wind resource assessment is ideal, where applicable, in order to know the feasibility of wind power over that of solar power.
2) Consider building several units over one single big unit for extra safety back up and to keep the costs down. A big mast supporting a big nacelle/generator is much more expensive than several light and small ones.
3) Get your hand over a wind turbine design. Not all plans are the same. Most come as an after thought after solar power unit designs in many popular websites. Sometimes such plans can be incomplete because they do not take into account ancillary technicalities such as the battery bank and how to analyze the efficiency of the DC motor.
4) Lay out the foundations in the chosen position.
5) Build the blades (usually 3 for optimal efficiency) from scratch in as little as 3 hours (a plan should tell you how).
6) Install the previously purchased generator into the nacelle.
7) Fit the tail for yawing and a spring loaded system for furling.
8) Rig the set up with the help of a friend.
9) Find old unused forklift batteries to pulse back into life and build the battery bank for the generator.
10) Check out DC motor efficiency with the help of an analyzer.
11) Rinse and repeat: you can build as many units from 1000 to 3000 watt as you like to cover up to 100% household energy expenditure.

It is not difficult at all to build a wind generator, providing all aspects of energy conversion efficiency are covered. Many times there is no mention on how and where to set up the battery bank or how to analyze to motor. This is why it is important to get information specifically for homemade wind generators, not as an additional back up to solar power designs. The reward for your efforts can be $thousands saved and an efficient renewable energy source.

As an additional bonus, the knowledge of battery recycling for the battery bank could also be converted into a lucrative business. Collecting old forklift trucks batteries and pulsing them back to life could also turn out a welcome additional income on top of the electricity bills saved with your homemade windmill.

Find out how to how to build a wind generator. Check out these wind turbine designs specific for wind power units only. Discover how to build wind generator.

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Basics of Energy Efficient Home Design

Good house design takes its form in part from the forces that act on it.  Climate and weather are two of the strongest form-makers (there are no igloos in the tropics) since houses must be designed and built to repel the damaging effects of the world we live in.  Mother Nature is always trying to tear our buildings down.

Climate and weather also affect the comfort of our homes, and cause us to seek out ways to maintain the temperature and humidity of our homes within tolerable levels.  A great deal of design effort is devoted to keeping the heat in or keeping the heat out, depending on the climate and season.

This Old House

At times throughout American history, the forms of our homes have reflected – to greater or lesser extents – our ingenuity in making our homes’ internal climates more comfortable.

Settlers in the Deep South built deep porches around their low-slung homes to shade them from the harsh sun and to create a reservoir of cooler air that could be drawn into the house.

New Englanders built compact homes with small windows to shield them from winter winds and to hold in as much heat as possible.  And prairie homes, often built of stacked sod, were half-buried in the earth to even out the temperature swings and to protect them from the frequent violent storms that sweep the plains each summer.

Simple and effective strategies like these were necessary because fuel for heating homes was limited.  We created houses that conserved resources; we didn’t know how not to.

That changed with the era of cheap and plentiful electricity and natural gas for home heating, and with the introduction of the first air conditioners for private homes in 1928.  Suddenly, houses didn’t need to respond to their environment; any home could easily be kept as warm or as cool as desired using mechanical means regardless of the weather outside.  Little thought was given to energy conservation strategies until the early 1970s, when the cheap energy we’d taken for granted became suddenly very expensive, and the climate-ignorant houses we’d built for decades became expensive to heat and cool.

That 70’s Show

But then a very cool thing happened.  Architects and builders across the country began to revive the “lost art” of designing homes that responded to climate and weather.  Ancient ideas like earth-sheltering and thermal massing were used again.  New passive-cooling strategies and unique ideas like the Trombe wall were invented.

And most interestingly, the houses using low-energy techniques took on new, exciting forms.  Suddenly there was something else out there beside Old World inspired design.  It was a fun time full of invention and experimentation.

But that era was short-lived.  By the mid-1980s fuel was cheap again and energy-efficient unique home design was all but forgotten.

Back To The Future

So it’s no surprise that we now find ourselves having come full circle, with rising energy prices and a revised interest in home energy efficiency.  It’s a critical concern in a time when some studies show residential buildings consuming up to 21% of the nation’s energy.

Today’s home energy efficient strategies are different than they were 30 years ago, however.  Today the focus is on technology rather than on design.  New materials are techniques have been developed that make otherwise climate-insensitive home designs (and there are plenty) better stewards of the energy they need to maintain human comfort.

Technical solutions can be expensive, however, since they demand that common building materials perform at a higher level.  Windows have “high-tech” glass with low-emissivity coatings, Argon gas-filled spaces, and up to three sheets of glazing.  Heating systems are running at higher efficiencies, and may come equipped with programmable thermostats and insulated ductwork.  Solutions like these do conserve energy and are important components in any home but the technology crutch shouldn’t be leaned on too heavily.  We also need better design.

Designer’s Challenge

What if, instead of spending hundreds of additional dollars on high-tech glazing to keep the sun’s heat out, we more carefully located our windows to avoid direct sunlight in the first place?  What if we used elements of the house itself to shade those windows from heat radiation and UV rays?

Suppose we took better advantage of the ground’s relatively stable temperature to stabilize the temperatures in our houses, rather than exposing every square foot of a home’s exterior surface to the elements?  Instead of constant mechanical air conditioning to remove heat and humidity, why not try opening windows onto shady porches and let the breeze cool the house?

And what if we opened our minds a bit – stopped thinking so much about fashion and resale value – and allowed the forms of our houses to be shaped more by how they respond to the climate and the environment we live in? 

The surprising result might be interesting and beautiful homes that cost very little to heat and cool – just like the old days.

I have over 20 years? experience in the field of architecture and have designed homes and buildings across the country.


I see my work as much more than just designing homes – I see residential architecture as an expression of a social art; an art with a strong responsibility to culture and environment, expressed in its enrichment of family life and by its contribution to community.


I truly love my work, and look forward to sharing the excitement of the custom design process with you.


Richard Taylor, AIA

President

Richard Taylor Architects, LLC
Residential Architects

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Energy Efficiency in Uninterruptible Power Supply Design

Uninterruptible Power Supply users – and data centres in particular – have never been under greater pressure to manage and reduce energy consumption. On one hand there are ever-stricter environmental requirements and the need to be seen as a good corporate citizen; on the other, the commercial imperative that balances increasing data centre performance with the balance-sheet-led requirement to cut operational costs.

Increasingly green UPS technology

Throw in a few misconceptions about Uninterruptible Power Supplies and the scene is set for an epic debate – with the integrity and performance of the datacentre (and its green credentials) on the line if the wrong approach to energy efficiency and UPS design is taken. In one corner: a small but vocal minority advocating fresh air cooling, UPS-free data centres and higher ambient temperatures (thereby reducing air-conditioning requirements); in the other, the supporters of increasingly green UPS technology as they embrace the latest energy efficient hardware and celebrate a tradition of close co-operation with a trusted UPS manufacturer.

Four main energy efficiency issues affect UPS selection: the energy needed to power them; the way they draw energy; and their effect on upstream supplies and the management of consumables such battery sets and switchgear. The best of modern UPS design offers tangible improvements in all three areas, along with an ever-improving carbon footprint. It’s just as well, because if data centre operators agree on one thing it is the importance of reducing power consumption.

The downside of non-UPS data centre operations

Those who argue against proven UPS technology claim that repeated AC to DC switching raises power consumption. Another minority advocate only fresh air-cooling (no power-hungry, server-room air-con) and even the conversion of data centres to DC-only in the interests of energy efficiency.

Unfortunately, this view overlooks possible damage, and almost invariably accelerated wear-and-tear, to sensitive datacentre hardware, fans, consumables and battery sets. That’s the likely consequence when equipment is forced to work harder in raised temperature and humidity – or run on a non UPS-unconditioned power supply. How much costly downtime can any business carry? And that’s after the potentially massive costs of installing the unfeasibly large quantities of copper wire a DC-only call centre would require.

Rather than taking these radical steps, the intelligent route forward appears to be that which the majority of enlightened data centre operators already follow. A proven route, whereby hugely experienced UPS manufacturers develop increasingly energy efficient devices such as the latest Riello UPS Multi Plus the specification, design and installation phases to tailor correctly-sized UPS solutions without expensive (and power–greedy) over-specification.

Handling the latest high-density servers

It’s a fact. As well as reducing electricity consumption, thoughtful UPS design (eliminating, for example, the need for over-specification of power-hungry air-conditioning) supports end users’ redefined energy efficiency and environmental objectives. What’s more, the latest energy efficient UPS have improved ability to handle the latest high-density servers required by those ever-more-demanding data centre customers

With the latest zero-impact designs, UPS such as Multi Plus, demonstrate low input current distortion, reducing the need for dramatically oversized supply, such as generators and upstream switching. What’s more, the latest systems give a near Unity power factor sine wave, again leading to less wasted energy. It all adds up to lower carbon and physical footprints (.26sqm at 20kVA for Multi Plus) – the latter allowing more revenue-earning high-density servers to be fitted into floor space that would previously have been required by older UPS.

Utilising a UPS supplier’s energy efficiency consultancy capability

There’s one final aspect of UPS energy efficiency that’s easily overlooked, but that a suitably experienced manufacturer can offer great help with. While it may be tempting to explore esoteric datacentre solutions for tomorrow’s energy efficiency improvements, a more immediate benefit would come from utilising a UPS supplier’s energy efficiency consultancy to improve understanding of current and future requirements. Only then is it truly possible to realize the low carbon footprint, high-density data centre of the future.

Alison Campbell-Boreham is the editor of The Power Protection Guide and provides PR services to Riello UPS Ltd, the UK subsidiary of Riello UPS (RPS S.p.A). For more information visit the Riello UPS – uninterruptible power supplies website.

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Home-built Wind Generator (6 blade design)

homemade wind generator3;My homemade wind generator with a 6 blade configuration. Check out how to built it at www.thekevdog.com

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3d animation | Wind Power | Anifex computer animation | Industrial Design | Product Design

www.anifex.com 3d animation industrial design – product design of a 3d animated wind power generator that demonstrates wind power technology for an online 3d animation presentation, trade show exhibit and 3d computer animation video DVD. Anifex 3d creates high quality 3d animation for the industrialwind powerroduct design and wind power industries. Anifex 3d animations are created with the most powerful 3d software packages available 3d Studio Max and Maya. Anifex computer animation also uses Adobe products including After Effects and Sound Booth to complete the video editing and compositing of our 3d animation videos. The Evolution of Fire wind power 3d animation was created to demonstrate Anifex’s 3d ability to market industrial design and product design. The entire 3d model was created in Maya so that the parts, gears, belts, wind blade, etc. actually move in sync with each other. This allowed the 3d animation to achieve the photo realistic 3d quality by all the parts performing their function correctly. Anifex felt that it was important to draw the viewer in and make the connection between the hypothetical caveman’s first discovery of fire, which may have resulted from lightning hitting a tree and creating a spark. This connection was originally going to be created as a one cell cartoon that Anifex was going to place on the product design. As an afterthought, it was decided that it would have much more impact if a 3d animated character was used instead. The 3d

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Pollution Control is Easy Using the Right Wind Power Design

With a basic wind power design, you should be able to produce sufficient power for running all of your domestic electrical components. When you use your personal wind power, you will be able to start saving your earnings as well as the environment side by side. Nowadays you can find websites that provide plans to design and construct a wind mill that is simple with basic supplies from most hardware stores. Some supplies may have to be purchased from an electric supply shop, but these things are typically found without much difficulty.

Generating Your Own Wind Power Can Help You Benefit By Saving Quite A Bit Of Money

Keeping in mind that most people pay nothing less than $150 monthly on electrical power, this totals up to a little short of 50,000 dollars in about twenty five years. When you capitalize on wind power, you will offset the cost of the construction of the wind mill. Take into consideration the lessening of carbon levels if every single person exploited wind power for homes as well as for their offices. Even if only twenty three people built and used a wind turbine, the combined savings could potentially reach way more than one million dollars in 25 years.

Opting For A Wind Generator at Home Provides You With Free Power

Once you pay for your wind power construction details and all the other necessities, you are finished with paying for power every month. There are no mandatory fees, no grid to hook up too and the most exciting news is that there is no power company that is waiting to collect any kind of fees. Just about the only charges that you will need to bear would be towards occasional repairs and regular maintenance as your turbine ages.

Which Wind Power Design Is The Best?

The vast range of wind power designs that are available can be intimidating for most individuals. However, you are sure to soon see basically there are just 2 types wind mills or wind turbines, as they are widely known as. What you will get are large turbines that produce an average of 2000 watts or smaller sized ones that generate 700-1000 watts on average. The size of the turbine’s rotor and average wind speed will have an effect on how much power you would be able to produce.

What are the Alternatives that those Skilled Experts Suggest?

Most wind turbine pros will suggest that take it easy when starting out and then take off from there as you get more familiar with it. There is lots of manual work that is expected assembling a wind turbine at home. You can start small and use your first project to provide power to another building such as a garden shed. If your pilot project thrives, you could then consider building a turbine that is more complex that can power up a larger space.

You Certainly Do Not Have to Be a Specialist

Wind turbine construction will involve the use of a few basic tools, including a metal cutter. In addition you should have a little familiarity with electrical wiring and components. Most plans related to wind power will come with explicit instructions and diagrams. When in doubt, go ahead and get the opinion of a specialist when you get to the intricate parts of the project.

Wind power is among the most environmentally friendly ways of generating power. Look for a simple wind power design over the internet today and you can start conserving energy in no time.

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