Posts Tagged ‘power’

CR especial V2.1 update

Tuesday, May 5th, 2009

Version 2.1 of the CR especial turbine has been completed and attached the base mounting structure.  .

Here is a nice shot of the turbine down in Waco, TX.

cr_especial_v21.jpeg

And a video.

[youtube]http://www.youtube.com/watch?v=5BZBJ2lzE5U[/youtube]

Dimensions:

  • 24" diameter X 60" blade height
  • 4" wide blades constructed from 4" drainage PVC cut into thirds.

Other stats:

  • All PVC for the blades, shaft and connections.
  •  Current mounting height.. about 10'
  • Total cost excluding generating engine - ~$50

A nice feature that Bryan added was putting a coupling in the middle of the shaft so that the blades could be phased into the wind spreading the torque of the blades throughout the rotation.

Performance and future work:

  • Wind down in Waco isn't especially strong and consistent... but even so at 10' and with really small blades, the windmill does turn.  Next steps:  Elevate to 30', build replica in CO and take to top of Front range for testing.
  •  The blades used are 4" wide, and have little aerodynamic lift.  The windmill often gets stuck facing into the wind in slow wind speeds. Next steps: Craft light wings which create lift and are closer to12" long.
  • The diameter of the turbine is 24", this provides the ability for higher RPM's but lowers the turning torque.  Next steps: widen out to 48" diameter and retest.
  • The height of the turbine is an overall 60", not bad, but the 4" PVC for the shaft can go to at least 2 times longer without causing flexing issues.  Next steps: increase height to 96"-120"

We don't have any readings on the wind speed and power efficiency... mostly because we don't have the equipment.

But... if you're reading this, like the project, and have 300 dollars to donate to a tax deductible ministry please shoot me an email at munkey906 at gmail.com... we'll get some good data recorded and analyzed asap!

Building solar projects on the cheap

Thursday, February 19th, 2009

For the last week or so I've been semi-obsessed with building and testing out my latest solar project: a solar powered space heater for my office.  You can check out my work which I documented here .

I've also recently built and tested (with success) a Tesla Turbine ... I'll probably make a page dedicated to it as well .

Finally, I'm working on YASP (yet another solar project).  This time I'm making use of my math and artificial intelligence skills.  I'm writing a piece of software which simulates a reflecting dish that (ideally) focuses sunlight on a central point.  Parabolas do this just fine, but the problem is that when the sun moves the parabola has to as well.  I'd like to find a dish shape that requires no moving through the day and still reflects a large portion of the solar rays (even as the sun travels across the sky) onto a central area.

So yep... things are humming along over here!

Kill-a-watt

Wednesday, February 4th, 2009

Greenies are known for being penny pinchers and energy misers.  But how to go about it in a scientific way?  And can you even really save that much money/energy consumption?

Recently I purchased a Kill-a-watt (~$20 on Amazon.com).  The kill-a-watt is a simple device that plugs into the wall.  To measure your energy usage, you simply plug in the appliance or a power strip with several appliances.  It has an LCD and several functions to help you monitor your device(s) energy usage... both when they are on and when they are off.

But when my coffee maker is off, it's off right?

No!

Surprisingly (to me at least) most modern appliances still consume a fair bit of electricity when turned off!  Commonly this phenomenon is known as "Vampire" electronics.

So how much money will I be saving by utilizing my kill-a-watt and a trusty ol' on/off power strip?

My work desk includes the following items:

  • speakers - 25 watts on
  • laptop - 20 watts on, 1 watt off
  • cable modem and wireless router - 25 watts on
  • Xbox - 90 watts on , 1 watts off
  • Monitor - 30 watts on, 1 watts off
  • Desk aggregate consumption during work hours (while not playing video games) - 100 watts
  • Desk aggregate (laptop, Xbox and monitor off) - 50 watts !

Summing up, I can see that for the 16 hours a day that I don't use my desk, it's still drawing 50 watts.  Over 1 year's time this consumes $33.28 of electricity.  Call me a penny pincher but by using a power strip for the whole system, and spending the 2 seconds per day to turn the strip on and off I can squeeze out just a little bit of savings (making the equivalent of $230/hour... just to flip a switch on and off).

I can't wait to find more ways to kill my watts!

Federal Reserve and govt hard at work concentrating power into the Hands of the wealthy...part 2

Friday, September 26th, 2008

Awhile back I wrote about how the Federal Reserve is busy concentrating power in the hands of the wealthy.  Then WildDerrick wrote about how the govt. was taking over Fannie Mae and Freddie Mac.  I responded with a post on how powerful the Federal Reserve really was.

bankers.jpg

Now if you're a quasi political participant like myself you may or may not have noticed that President Bush recently proposed a bill giving the government the authority to purchase 700 billion USD in subprime mortgage loans from the largest banks which are likely to collapse otherwise.  As I understand it, there will not even be any stipulations on that money.  It is more or less a blank check to the faultering banking industry.

Aside from the fact that such a bailout is plainly and obviously wrong, unfair and unjust it is further evidence that if we don't watch out the federal government and the federal reserve [which is not part of the government, but is in fact a privately chartered bank) will even further concentrate the wealth of this country into the hands of the ultra-wealthy.

In the most likely scenario a 700 Billion USD buy out of rotten subprime mortgages will play out as follows:

  1. Bad mortgage securities bought by some extension of the govt. in the amount of 700 Billion USD.  The banking industry doesn't learn from their mistakes, and is allowed to continue on without cleaning out the dirty corners of their business[1].  They understand now that risk is spread out amongst the citizens of the US[2] while the financial gains are simply theirs to keep.
  2. A few years later, those securities will be auctioned off on the market.   Managing thousands of homes is not in the interest of the govt, it would simply be too expensive.
  3. The glut of houses for sale will only be able to be purchased in cash as houses at auctions almost always are.
  4. The only ones with large amounts of cash[3] are the ultra-wealthy who will pick up the mortgages and the houses for pennies on the dollar, perhaps as little as 30-50% of what they are really worth.
  5. A few years later those same houses will likely be flipped back around for their true value, albeit less than 2007's inflated prices.
  6. The wealthiest folks, like Warren Buffet, will have now aggregated even more wealth under their belts.

What can we do about it?  Write to your congressman (yes it's still possible) and tell him to vote no on this bill.  If he/she votes yes, simply refuse to vote for him in the future.

It's time we hard working citizens and taxpayers refused to be the risk reducers for the ultra-wealthy.

Links (Thanks Nathan):

Dave Ramsey's synopsis http://www.daveramsey.com/etc/fed_bailout/economic_cleanup_10887.htmlc

How you can write your senator:  http://www.senate.gov/general/contact_information/senators_cfm.cfm

update:  At today's T-bill rate of 4.4% (20 years) the total cost of a 700 billion dollar bailout would be about 1.67 trillion USD.  This averages out to be about $16k per household in the US.

  1. as Nathan says, they won't even have to miss any of their yacht payments []
  2. 700 billion USD = 2k USD per man woman and child in the US, or more about $300,000 per tax payer according to Dave Ramsey []
  3. like Warren Buffet who is one of the few wealthy enough to insure insurance companies against catastrophic loss []