admin answers:

You can buy a mobile home approved, direct gravity vent wall heater. Like a Cozy, Williams, Empire.
They just mount on an outside wall and take combustion air from outside and exhaust to outside. Don’t mount near a door or window. They have standing pilots and don’t require any electricity. They have millivolt gas valves that work off pilot generators. For 800 sq. Ft. I think you need about 38,000 btu’s on the coldest day of the winter when the wind is blowing 40 mph. Good luck! Hope I helped.

admin answers:

A permanent magnet hobby motor from Radio Shack, some rubber tubing and hose clamps.

The motor will generate a voltage when its shaft is spun. You need to attach a small diameter pulley or wheel to the shaft of the motor. You may also try slipping a piece of small diameter rubber tubing over the motor shaft. Either way the bike wheel will rub against the pulley or tubing covered shaft to cause the motor shaft to rotate. You can attach the motor to a frame or bracket using hose clamps and wire ties..

You may find it easier to wind a coil of magnet wire and mount that coil to the bike frame near the rim. Then crazy glue pairs of magnets to the rim (alternating the pole orientation).

THis will generate AC power as the magnets travel past the coil. Use a pair of white LED’s connected in parallel but in opposite polarities to the coil. Each LED will light on part of the AC volatge.

admin answers:

…so, turbines generate electricity (3 phase electricity because its efficient)
-electrical engineering, bach.

And they got lots of moving parts
-industrial millright,

sorry, i don’t know anyone regarding wind farm techs but there is a school for them in Ontario, Canada

http://www.canwea.ca/images/uploads/File/List_of_Wind-related_Education_and_Training_Programs_-_March_2007_-2.pdf

admin answers:

Technical schools are great ways to focus on hands on learning.. And get into the work force quicker.. In my opinion they are worth it.. Hope this helps!

admin answers:

HI

Rooftop wind turbines offer a relatively inexpensive way to participate in the rush to renewable energy. The principle allure is low installation cost. Typically, tower installations for larger turbines add 50 80 to the cost of the system. With a rooftop turbine, an $800 tower is replaced by a $39 roof mounted tripod, or a length of pipe attached to the side of the house.

admin answers:

You can easily make one from an old stepper motor out of a printer, or a computer.
Just put a fan or a propeller on the shaft and that’s it. If you want to produce DC, then you will need a rectifier as well.
This will probably take the form of 6 diodes, in order to get the maximum output.
Have a go, it won’t cost anything.

admin answers:

I believe the whole motor is FP001. Don’t know about just the stator.

admin answers:

The best inverters use a pulse-width-modulated output and a low-pass power filter for the line frequency (60 Hz or 50Hz). The high voltage DC input is modulated at a rate in the 20-40 kHz range or even higher. The modulation is controlled directly by the line to which the power is fed into. Some of these inverters can run in the high 90% efficiency range.

For the PWM inverter to work, whatever the output of the generator, it must be converted (any phase, any frequency, or even DC) to high voltage DC. This can be done independantly of the line frequency or phase.

.

admin answers:

There are a number of things that can be done about gas prices. The problem is that there are political, environmental, and legal issues that would have to be overcome to make it happen.

First, we need to reduce dependence on imported oil. As a world wide commodity, changes in oil demand anywhere in the world will impact our prices here. We could reduce oil imports by increasing the use of ethanol. Currently something like 25% of the US corn crop goes to this. However, the downside is that this takes corn out of the stockpile for food (both human and animal feed), which is currently causing famine to break out around the world. We could expand domestic supply, but hat means drilling for oil off the Gulf coast and in a part of ANWAR, which has environmentalists up in arms.

Second, we could improve the distribution of fuel in the US. Currently, there are dozens of gas blends, all mandated by law. It is a tricky thing to supply just enough of each blend, as you cannot use a blend intended for, say, Colorado, in California. So if California goes in need, oil companies cannot shift inventory, they have to shut down refineries, make adjustments, and make more of the California blend. This is a wasteful and expensive process. Far better to have a single blend that all the states can agree on that would allow the fluidity needed in the market. But this is going to be difficult to impossible as the states want THEIR blend and will fight any kind of Federal mandate.

Third, I think we need to encourage those things which will get us away from oil consumption. Not much oil is used for electricity generation, but it can and should be replaced by more efficient, cleaner sources. But nuclear, coal, solar, wind, and hydroelectric all have their own problems as well and each industry will fight hard for their slice of the pie. Most oil is used for vehicle fuel. We need to move to more efficient vehicles and alternative fuel / hybrids, but they are often more expensive than gasoline powered vehicles and some alternate power sources do not have the power necessary for today’s driving. Research needs to be done in fuel cell technology, advanced batteries, and efficient (and safe) hydrogen generation.

I think too many people focus on one thing (conservation, more oil drilling, whatever) and think that alone will solve our problem. They are wrong. It will take a comprehensive approach were everyone will have to give a little for the greater good. Rep. Kennedy is going to have to sacrifice some of his coastal view in MA for wind turbines. Oil companies are going to be allowed to develop domestic sources. States are going to have to grant the feds the power to set uniform fuel standards. This is a lot to ask for, but this and more is what it will take. Anything less then an across the board rethinking of our energy policy will be like slapping a band-aid on a cut artery; just too little to be effective. And if it is ineffective, then expect the President of Iran to be correct when he says that oil is a strategic resource that needs to find its true (and in his mind MUCH higher) price. This is the guy that thinks $200 a barrel for oil is not unreasonable.

admin answers:

Basically there are only two types, horizontal and vertical axis wind turbines. Here are some links for some more information……

Http://www.eia.doe.gov/kids/energyfacts/sources/renewable/wind.html

http://www.esru.strath.ac.uk/EandE/Web_sites/02-03/zero_emission_bldgs/descripwindturbines.htm

http://www.windmission.dk/workshop/BonusTurbine.pdf

http://www.awea.org/faq/basiccf.html

http://lsa.colorado.edu/essence/texts/wind.htm

admin answers:

The mass and velocity of the air give it KE
The wind turbine blades convert the KE to ME (mechanical energy; the one you left out of your list of ‘all’ the forms of energy…!)
The generator converts the ME to electrical energy, the most useful grade of energy.

At each conversion point, some of the input energy is not used, causing the output energy to be less than the input. For ex: The wind downstream of the blades is slowed, but not stopped. Ergo, it still has some of its KE and the blades have picked up the rest as ME. As I recall, the maximum efficiency of any blade system is about 36%. The ME to EE step is about 90% efficient. Of course, all the efficiencies multiply, so you come out with less than 36%, but considering that the original wind energy is created directly from solar heating of land masses (ie, free), things don’t look so gloomy…….

admin answers:

You know, with all of the conditions you’ve placed in this question, you could have asked, “If a generator spins at 700 RPM, how much electricity will it produce?”

A particular generator spinning at a constant 700 RPM will generate a certain amount of power, but a different generator spinning at the same speed would generate a different amount. Add back in all of the wind turbine stuff, and you get the same answer – “it depends.”

admin answers:

1) You have to figure it out. If it’s in Hawaii, you probably don’t need heat, and can get by without A/C, too. In other places, more would be typical.

2) Your choice!

3) Since utilities are allowed, just to be minimized, I’d go with grid-tied solar electricity. The panels can generate 100% of average usage over time (unless this is Alaska or something). The grid is assumed to be reliable, but if there are doubts, I would go with a gas-powered generator for emergencies before I went with batteries to store electricity. The cost and upkeep of batteries would not be worth it unless they were going to be used all the time – typically, and off-grid arrangement.

Our house is 1900 square feet, single story. You can look at my profile and find out web page, with details on how much our system cost, which provides essentially 100% of our electrical needs. The link is called “Our Solar Panel Project” on that page. But we have gas heat. And prices have come down since we had ours installed, so you need to research current pricing.

admin answers:

I helped my Bro-Inlaw build a VERY nice 8 x 8 8-10 years go.

It had a window, TV, full-size hollow-core door. 2 fold down beds that folded down from the wall, 6 holes and we could barely move it! (lol) We named it the “Fish Tank” because it weighed 2 tons, (we actually BROKE a 2 ton jack trying to get it on a trailer!).

Since that experience I’ve had a variety of ideas:

#1. Do you know what a “quonset hut” is? My Dad used to build them in Alaska when he was stationed there in the ’50’s.

I had this idea that I would use hollow-core aluminum piping as the frame- bolted together. The floor would be 3/4′ pressure treated with skids, (typical to most shanty’s).

Here’s the “tricked-out” part- use thick canvas as the walls. And then FIBERGLASS the canvas using resin- thus the walls would be rigid. To make the walls more “rigid” you would use wire to secure the frame.

This would be an extremely light weight rig that could (theoretically) be moved by a single person on the ice! You would then have a permanent shanty that could easily be transported/moved around like a portable! You could also have your permanent house on the ice before anyone else! (I ran this idea by my Dad, who is an engineer, and he thought it would work well.)

Why go super-light?

After lugging the “Fish Tank” around a couple seasons it ended up sitting and starting to rot. Neither I nor my Bro-Inlaw wanted to hassle with getting it on and off the ice. It was a MAJOR pain in the @ss- and dangerous!

I EVEN thought about using heavy-duty PVC for the frame- (we used 2 x 2’s and 2 x 4’s at the 4 ends on the FT and it was HEAVY). But, here in MN where the possibility of -25 for weeks at a time made me rethink- (You don’t want the frame to “crack”!)

If I ever build another one It’s going to be a super-light.

I like your idea.

I suggest you build 2 benches on either ends. FULLY enclosed benches with hatches- so you can store expensive equipment in them when your not at the shanty- (like your buddy heater, rods and reels, ETC)- locked and secured.

Have one bench that is fully enclosed, (with lid and latches) and the other have a feature where the bench folds out DOUBLE to make a small bed. Build a small table that folds out from the wall so you have something to eat and play cards on- then it can be folded back into the wall if you have guests over and need space- (or the fishing gets good!).

Get rattle reels and think about adding a wind generator OR solar generator to keep your batterys trickle charging when your away. They are really inexpensive now- (like $150)- and it’s nice to not have to lug a 60 LB battery and hook it up every time.

Hope this helps ?

admin answers:

A wind turbine maintenance technician is a good job. It pays well and only requires a two year degree.

admin answers:

Found your question twice so I’ll paste my response here too. I am in the air-streams wind technician program right now and I regret it. I don’t think that I am getting what I paid for and it seems that most of this course is about Safety BullS*!T and not about how to do the job. The instructors are experienced but not good at teaching and if I could get a refund I would do that because its NOT worth $5,000…maybe half that. If I had known this before I came to this program I would have chose a different program or just done the safety certifications and applied/volunteered around until someone hired me. In my opinion save your money, Airstreams Renewables Inc 🙁

admin answers:

It is the velocity of the wind, rather than barometric pressure which drives the turbine. Design of the turbine set (generator and turbine) which determine the wind speed necessary for operation.

Google WIND TURBINE DESIGN for a lot of information. On different types of wind turbines.

admin answers:

My guess would be no. Aside from having to be in phase you would also have to have some type of service disconnect between the wind turbine generator and the outlet. If you didn’t there would be nothing to protect anything else on that line from an overload.

admin answers:

Your hybrid system would have to depend on the location where you are building your cabin. If sun is abundant all year around, solar powered system is advisable. Solar cells are not so expensive now as before. If the wind in the area is normal, there are inexpensive designs for a wind powered system. Both system has to store the power in battery banks.

Both system may easily be used in tandem storing energy to a single battery bank provided that your storage (battery banks) has enough capacity. Too much capacity would also mean higher cost. So the battery bank should just be enough to last until the next charging time (or cycle) normally every day.

Check your planned power requirement and match it with the system you might need.

For emergency cases, you must have a small engine driven generator set for lights and whatever emergency equipment you might have, just in case your batteries run out of power.

For suppliers of these system(s), you should check first for any local distributors and manufacturers closest to your cabin. It would make a difference at maintenance ( or other after sales services).

admin answers:

None of the above.

Obama released his stimulus plan, and they mostly are tax credits for buying things that will stimulate the economy. That means you will pay the government less in income taxes if you purchase certain items. For example, if you are buying your first house, you will pay $8,000 less in income tax for 2009. If you install a solar system or wind generator on your house, you will pay $3,500 dollar less in taxes, depending on how much your wind / solar system cost you. Buy a brand new car off of the show room floor, and you will pay less income tax equal to the amount of state sales tax you paid on the new car.

So on almost all of the tax breaks, you must first purchase something to stimulate the economy. If you don’t purchase anything, you don’t get the tax break. So Obama’s plan basically benefits only those wealthy enough to purchase expensive things.

The amount of with holding ( taxes taken out of your pay check ) was reduced. But the tax schedules were not lowered, so you will have to pay taxes on the money not with held from your pay check at the end of the tax year. That gives you a few dollars more to spend, but you should be saving those few dollars to pay back at the end of the tax year.

Most people don’t realize that with less money being with held out of their pay check, at the end of the year, the may have to pay money to the government to meet the taxes owed. They won’t get a refund because less money was taken out of their pay checks.