2007年12月30日星期日

wind generator Model:H6.4-5000W

The Model: H6.4-5000W use Streamlined three-bladed glass fiber reinforced blades which have the advantages of great intensity, fatigue resistance and high efficiency. The Hummer-patented generator characterizes its high efficiency and good low-speed-performance. The speed regulating system adjusts automatically to wind speed. Controlling, inverting and discharging are integrated. It incorporates a new electronics based technology that results in increased performance, improved battery charging capability, greater reliability and the reduction of buzzing noise from the machine. Unlike many of our competitors, the controller includes a diversion load to ensure quiet safe operation of your wind turbine when the batteries are charged. It’s designed to provide quiet, clean electricity in very low winds. This makes Model:H6.4-5000W ideal for residential homes and small businesses.

Maintenance-free, easy installation, and high output make Model: H6.4-5000W ideal for virtually any remote battery charging application. Installations range from China to Europe.

The Model: H6.4-5000W is designed for even the novice. The Model: H6.4-5000W can be installed in just a few hours with no welding, no concrete or cranes. Our engineers designed the work out of installing wind turbines. Now wind is as easy to use.

Combining wind and solar in hybrid systems are quickly becoming the standard in renewable energy field. This is due to seasonal fluctuations of both wind and solar energy resources that make it an ideal combination.

Our generator has the features of extreme small structure, low wind start, low rated wind speed, quick output in low wind, wide wind speed ranges, reliable speed restriction, and stable quiet running, Etc.

Light:
Hummer windpower Model H6.4-5000W Genertor weighs only 100kg (including blades, hub and nose cone).

Small:
small in size.,low energy consumption, low noisy, low rated wind speed(10m/s,22.4mph for 5000W)

Swift:
Swift Start-up: Hummer Small-sized ,With wind speed at 3.0m/s, 6.7mph
Swift rotating, 1.5 to 3 times faster than other types of generators
Swift Charging


Stable:
Strong in structure,blades adopt end joint and can fly stably.
Safe protection for overcharging, overdischarging, short circuit, overloading, over heating, etc.

WHERE AND HOW H6.4-5000W USED

The H6.4-5000W is an ideal product for the person that needs power for basic appliances such as TV, radio and lights.

Common applications for the H6.4-5000W

Remote Homes and Huts

Utility Connected Homes

Telecommunications

The Developing World

Monitoring Stations

Water Pumping

To order this product, please see our dealer locator.


Main technical date :
1.Rotor blade diameter : 6.4m
2.Numbers of blade : 3
3.Start up wind speed : 3.0m/s, 6.7mph
4.Rated wind speed : 10.0m/s,22.4mph
5.Rated output power : 5000W
6.Maxim output 7500W
7.Output Voltage : AC 220V DC 240V-280V
8.Pole height : 12m
9.Generator Weight:100kg
10.Pole diameter:273mm
11.Temperature of working surrounding : 45

From :wind generator

2007年12月24日星期一

Taking the wind out of beans - new fermentation method could reduce flatulence

The flatulent side-effects of eating beans could soon be reduced by naturally fermenting the beans, according to results to be published in the July issue of the SCI¡¯s Journal of the Science of Food & Agriculture, now available online.

Flatulence is known to be caused when bacteria in the gut break down alpha galactosides and soluble dietary fibre, producing gases as a by-product. Untreated beans contain high levels of these compounds.

Many people are put off eating beans because they worry that it will give them wind, but now researchers from the Food Analysis Laboratory, Caracas, Venezuela have found a natural method that they say "will reduce the concentration of the compounds in beans that cause flatulence."

The team of scientists lead by M Granito found that when beans are naturally fermented for 48 hours all the soluble fibre is removed. The concentration of alpha galactosides was reduced by 72% after 48 hours and 95% after 96 hours, virtually eliminating all the flatulence causing compounds.

According to M Granito, "natural fermentation also has positive effects on protein digestibility, texture and aroma, making it a very favourable method to use。wind generators,wind turbines

2007年12月19日星期三

Parts and Accessories

Hummer wind generator includes the body, tower plus accessories, and controlling units.
Body concludes: rotor blades, generator, yaw shaft, nose cone, tail pole, tail wing, etc.
Tower and accessory: pole, nut, pedestal, guy, anchor, and wire, etc.
Controlling Unit: charger, unloader and inverter.


The generator, blades, nose cone, shaft, tale pole, tale wing, tower, anchor, etc are all surface coated.

1)Generator



The generator you purchased is the most advanced in the world.

It is extreme light and small, high in efficiency--more than 0.78 of utilization ratio.

With four patents here, two of them are international.

The generator is made of special magnetic material, cuprum alloy, intensified stainless steel, and aluminum alloy.

Small and light structure: the 350W only weighs 40kg entirely, 18 percent of the traditional; and 20 percent of the traditional for the 1000W.

Small in power wastage:
The structure and friction ratio are small, low in power wastage with 20% saved than the traditional one.

Small in sound:
Due to the light and small structure, and the rotating speed can never be over 2 times than the rated rotating speed, with the result of soundless, safe and reliable.

Low in rated wind speed:
When wind speed is 6.0m/s, the module 350W can output more than 350W. This wind speed is low than the traditional 8.0m/s rated wind speed.

Simple and compact structure, with only three moving parts, with convenient fool-proof installation process.
Swift in start up: low in start up wind speed, low in rotating wind speed, as 2.0m/s for full start up.

Swift in heat dispersion: the generator is within the nose cone, which is favorable for heat dispersion.

Efficient in charging: when the wind is 2.0m/s the output can be 50W.
Swift in charging: when wind speed is 8.0m/s, the 2pcs 100Ah batteries can be charged full in 6 hours.

Swift in rotating: Hummer generators are different from the traditional outer stator, inner rotor structure. It is designed with patented inner stator, outer rotor structure and with permanent magnet material and circuit, with many accessories saved, so the wind utilization ration is as much as 85%.

2) Rotor blade



Pictures show the new generator wind blade and the wind blade's detail structure.
The impeller wing section design done carefully by the aerodynamics expert, according to the airscrew structure, takes shape by the intensity glass fiber reinforced plastic, the end joint tech has the extremely low starting and cut-in point, ensures the low wind start and stable quiet running.
Used has cut the wind structure, the wind power utilization ratio enhance up to 0.26 from the traditional 0.5, the extremely high wind power utilization ratio.
Our Hummer Dynamo limited company contrasts the domestic and foreign several small wind-driven generator match blade manufacturer's blade, through many tests in the foundation, the independent development has designed one kind of new wind blade:
In view of the traditional glass fiber reinforced plastic wind blade cannot bear the gale, the low temperature easy break, the gale area service life not to surpass for 5 years and other flaws. Our hummer company developed high strength wind-driven generator wind blade which has controlled the type straight. This wind blade structure is firm, can bear 8 levels of gales.
Our hummer mini wind-driven generator adopts outside rotor unique design, reached "own energy consumption low, the wind power utilization ratio to be high" the high request. The new wind blade used cut -wind structure, the generator movement does not have the axial force, but can protect outside rotor maximum. Enabled the wind power utilization ratio enhance from traditional 0.26 to 0.43, has achieved the breeze start truly.
The hummer wind blade's successful application causes the problem that gale area such as Inner Mongolian prairie and coast where the wind-driven generator's wind blade damage rate highly, is readily solved. Simultaneously made the entire wind turbine's service life prolong three to five years. Because hummer mini wind-driven generator wind blade use "the end joint tech", stable quiet running, also reduced the noise and has brought enormous convenient for user's use and replacement.
The wind blade according to the airscrew structure and technics to manufacture, the wind blade has passed through the transient equilibrium test, firm and durable, design life for 8-10 years.


3) Nose cone



It is in front of blade to reduce the wind resistance. It is made of reinforced aluminum alloy, and streamline design according to theory of the diving boat's sealed design.The generator is within the nose cone, which is favorable for heat dispersion.

4)Protection cover



It is located beween blades and nose cone, being made of reinforced aluminum alloy to further reduce the wind resistance and protect the generator.


5)Yaw shaft



It is made of die-casting alloy, with high intensity and lightweight to connect the blades, the generator, tale pole, tale wing and tower to a whole unit. Inside of the shaft there are slip rings to prevent the wires go winding. The 2kw weight is only 10 percent of the traditional, and 20 percent of the traditional dimension.

6)Tail pole



They are made of manganese steel, with high intensity and lightweight, length only as two thirds of the traditional pole.

7)Tail wing



It is made of stainless steel, inflexible, auto side furling in high wind condition, reliable and delicacy in speed limitation, with weight 500g, is 20 percent of the traditional.


8)Tower



It is made by carbon steel, with outer diameter65,76,90,120, height 5m,6m,8m, etc with 2 or 3 sections per unit. They are anticorrosion, as well as UV-proof. Because the head and tower need not adopt the eccentricity structure, the mount structure is simpler, and more reliable.

9)Guyed wires and anchors





Tightwire adopts live button structure, and arrow like anchor, so it is much easier for installation

10)Surface coating and protection

All the parts are galvanized and then static molded, so are anticorrosion, UV-proof, crashworthy, fastness and will be fresh all year round.

All the parts are made of high quality aluminum alloy and die-casting spare parts, can be used in the temperature ranging from -30 to 60, in the surroundings of high wet, and sand salt or frost area.

2007年12月13日星期四

Hummer laboratories

Hummer Institute consists of the following four laboratories:

Beijing Beiyuan Generator Lab, Shenzhen Beidi Generator Lab, Anhui Lujiang Amorphous Magnet Lab, and Anhui Lujiang Permanent Magnet Lab.

The institute has a lot of achievements in the fields of amorphous soft magnetic materials, permanent magnetic materials, high and low speed generators; and obtains many patents in aspects of generator magnet circuit and generator structure, etc. The institute has an original deep research on the technology of cutting magnetic line.

Hummer has seven patents. Based on its leading technology, our Hummer generator is made in very small size. For example, our350W generator weighs only 5kg, which is about the weight of a flange used in traditional wind generator for fitting blade rotors. The forever magnetism centrifugal clutch developed by Hummer Research Institute really makes the small wind generator to start with gentle wind. The institute does a careful research on mechanical structure and controller to perfect the whole wind generator system.

Hummer Institute is vigorously researching better wind generators for better making use of wind power more efficiently. Die Casting ,Water filter , Ball Valves,网站建设

2007年12月8日星期六

Wind Genrator H6.5-5000W

Features:
Streamlined three-bladed glass fiber reinforced blades have the advantages of great intensity, fatigue resistance and high efficiency. The Hummer-patented generator characterizes its high efficiency and good low-speed-performance.
The speed regulating system adjusts automatically to wind speed. The whole system is easy to install and convenient to maintain. Controlling, inverting and discharging are integrated.
Main technical datas:
1.Rotor blade diameter:6.5
2.Numbers of blade:3
3.Start up wind speed:4m/s
4.Rated wind speed:10m/s
5.Rated output power:5000W
6.Output Voltage:AC 220V ?230V?340V ,DC 24V,36V,48V,etc
7.Height:10m
8.Generator Weight:70kg
Temperature of working surrounding::±45°Ccasting,wind generators,bending machines,hisuppliers

2007年12月3日星期一

Mountain winds may create atmospheric hotspots

WASHINGTON-Rapidly fluctuating wind gusts blowing over mountains and hills can create "hotspots" high in the atmosphere and significantly affect regional air temperatures. A research paper to be published this month in the Journal of Geophysical Research-Space Physics reports that the actions of such winds can create high-frequency acoustic waves and could stimulate a 1000-Kelvin [1,000-degree Celsius; 2,000-degree Fahrenheit]spike in a short period of time in the thermosphere, at an altitude of 200-300 kilometers [100-200 miles]. Such exceptional temperature increases would require continuous waves, and the heating rate would likely be diminished with intermittent winds.

Richard Walterscheid and Michael Hickey used a theoretical model of the interaction between rough terrain and wind eddies to suggest that high winds may represent a previously unknown source of acoustic waves in the environment. Ocean waves and earthquakes are known to produce similar waves, which strengthen as they propagate higher in the atmosphere. The authors speculate that the waves can heat the atmosphere at prodigious rates and could account for a large part of the unusual and unexplained high-altitude background heating seen above the mountainous landscape in parts of South America.

"We show that that the acoustic waves generated by gusty flow over rough terrain might be a significant source of heating in the upper atmosphere," Hickey says. "These mysterious so-called 'hotspots' observed above the Andes Mountains could be explained by such acoustic wave heating."

Previous observations near the Andes Mountains in Peru had found that the atmosphere directly above some peaks was approximately 100 Kelvin [100 degrees Celsius; 200 degrees Fahrenheit] hotter than in nearby regions and that the difference occasionally reached as much as 400 Kelvin [400 degrees Celsius; 700 degrees Fahrenheit]. Other research had recorded similar effects near the Rocky Mountains in Colorado. After comparing simulations of atmospheric gravity waves and acoustic waves, the researchers found that the acoustic waves reached higher altitudes than the gravity waves, leading them to speculate that the acoustic waves constituted a far more plausible source of the observed hot spots. They then identified wind fluctuations as the most likely source of the heating, noting that the upwind waves could only be generated by unsteady wind flow.

They cite further evidence indicating that the high- frequency acoustic waves in the thermosphere originated from the ground, including proof that nighttime atmospheric motion (convection) is not a plausible source of the persistent heating. In addition, they note that only high-frequency acoustic waves could cause the thermospheric heating, as the slower-speed gravity waves are not fast enough to reach the higher altitudes and therefore could not produce the substantial effects at that height in the atmosphere.

The paper indicates that moderately strong winds, reaching speeds of approximately 10 meters per second, can generate wave amplitudes of nearly four meters [10 feet] per second above rough terrain. In addition, the authors found that steeply sloping terrain further enhanced the waves, which are generated by rapid variations in the up-and-down turbulence in the air. Wider hills and those spaced further apart can also have a similar wave- generating effect, but the authors found that the wind effects typically do not propagate vertically near isolated hills as they do around rougher terrain.

The researchers note that there are very few detailed field studies of the wind field over hills at present. They report, however, that models and previous research indicates that even weak interactions from acoustic waves can produce significant effects in the thermosphere. wind generators,wind energy
From:http://www.allwindenergy.com/news/Mountain_winds_may_create_atmospheric_hotspots.htm