Reply With Quote
LOL...
I wonder how much harm we can do to weather patterns.
Wouldn't it be ironic if the entire corn industry failed?
Still, nearly is not always. Are you in favor of expensive subsidized power with brownouts, or would you like a gas fired clean burning plant. We still have plenty of natural gas for power.
LOL...
I wonder how much harm we can do to weather patterns.
Wouldn't it be ironic if the entire corn industry failed?
It isn't quite an educational game.
You are actually doing work for the researchers, in the manner that the SETI@home thing does for SETI, but using your own brain as the processor.
Heard a story on it on NPR...
Scientists: Computer Game Could Help Cure Diseases
In a new game called Foldit, players move computerized versions of proteins to give researchers new combinations to try as they seek to cure diseases like Alzheimer's and Parkinson's. David Greene talks to one of the creators of the game, Zoran Popovic, a professor at the University of Washington.
DAVID GREENE, host:
If you've ever played "Pac-Man" back in the day or you're hooked on "Madden Football" - like I am - well, you know, videogames can be fun, addictive, guilt-inducing. Imagine all the more productive things you could and should be doing. Well, guilt no more.
Scientists believe they have found a game that can actually help cure diseases, like Alzheimer's and Parkinson's. It's called Foldit, and the game is not unlike Tetris, when you move different shaped blocks into place so they fit neatly. But what players here are actually moving are computerized versions of proteins, giving researchers new combinations to try in real life as they seek to cure illness.
Been wanting to try it, but had forgotten about it until your post. THANKS.
I just read an interesting study that says that there are temperature immediately downwind of the prevailing winds from a wind farm but it generally shows no change in the daily average temperature but a smaller diurnal range due to better atmospheric mixing.
The turbines kinda act like atmospheric blenders over a short area making the air temp range over a day to become smaller but the average temp stays about the same.
WC makes another claim he can't back up. Pretty standard.
(Nods)
He isn't playing devil's advocate just for the sake of argument, he is acting pretty much as you say, an attempt to completely invalidate anything he doesn't agree with.
Frankly his posts tend to be almost universal examples of some type of cognitive bias , confirmation bias, just plain logical fallacies.
I like to play a fun game where I try to find which one of the cognitive biases he is displaying when making arguments. For example his post regarding wind stoppage is essentially a Neglect of Probability cognitive bias, rather remarkably similar to the example given in the wiki entry.
It's kinda fun in a wierd "look at this interesting bug that crawled from under the house" sort of way.
Someone who is obviously fairly bright when it comes to learning technical data fails so spectacularly when it comes to logically considering larger things beyond that. Odd dichotomy.
My God you assume allot.
Do clean burning plants provide 100% uptime with no brownouts?
Do clean burning plants have no subsidies?
Will clean burning plants ever run out of natural gas?
I didn't say it was ONLY an educational game.
He assumed you were bright. I for one would never ave gone that far.
So it can be safely concluded that we should not build a wind turbine farm on Wild Cobra.
You were saying?
Oh and homes do not use 120V and 240V. Try again.
I have no doubt that with the industrial equipment that you work with all the time you can troubleshoot without the manufacturer list. I also have no doubt that you have very little knowledge of the why of things. You may know however many farad capacitor you need or when a contacter needs to be changed but thats about it.
I doubt you could explain the electron flow in said capacitor. You obviously have no concept of the Maxwell equations etc. You may no longer need to read the manufacturers lists because you have been working those machines for so long but that is where your knowledge ends. You are a parts changer.
Your anecdote about the Cascade mountains is ing stupid. You do not build wind farms in mountains and foothills. So basically all you have shown is that maybe it might be a bad idea to build a wind farm where you live. Brav ing o.
95% efficiency. NINETY-FIVE PERCENT OF THE TIME WIND TURBINES ARE ON LINE.
Your 95% figure is likely not right btw. In the spirit of smashing the parts changer I support you, but its likely 95% due to maintenance but there is still time lost due to insufficient wind. Operational time is likely closer to 65%.
His anecdote on the cascade mountains is wrong anyway. Mountain areas actually experienced higher levels of wind due to their overall higher elevation either way.
there you go.New gas plants are capable of achieving low forced outage rates—high levels of reliability. Because gas plants have often been the generator technology of choice in recent years, it can be tempting to use this gas plant characteristic in an attempt to estimate the capacity value of an intermittent generator such as wind. To carry out this approach, one collects wind generation over the relevant high-load period (for example, the top 10% of load hours). The next step is to calculate the 95th percentile of wind
generation—the level of wind generation that is achieved 95% of the time during these load hours. A variation of this approach, one that we have encountered, is to then feed this 95th percentile generation into a reliability model to calculate the ELCC of the wind plant. In both of these variations, the method only values capacity levels that are exceeded 95% of the time. All other capacity levels are assigned a value of zero. The use of a percentile arbitrarily discounts reliability contributions that are achieved at levels below the percentile value. These approaches are based on fallacious use of probability theory, and they ignore the statistical independence of outages and the fact that system reliability can be achieved at a very high level (such as 1 day in 10 years LOLE) even though every unit in the system is somewhat unreliable.
What is "capacity factor"?
Capacity factor is one element in measuring the productivity of a wind turbine or any other power production facility. It compares the plant's actual production over a given period of time with the amount of power the plant would have produced if it had run at full capacity for the same amount of time.
Actual amount of power produced over time
Capacity Factor =
Power that would have been produced if turbine
operated at maximum output 100% of the time
A conventional utility power plant uses fuel, so it will normally run much of the time unless it is idled by equipment problems or for maintenance. A capacity factor of 40% to 80% is typical for conventional plants.
A wind plant is "fueled" by the wind, which blows steadily at times and not at all at other times. Although modern utility-scale wind turbines typically operate 65% to 90% of the time, they often run at less than full capacity. Therefore, a capacity factor of 25% to 40% is common, although they may achieve higher capacity factors during windy weeks or months.
It is important to note that while capacity factor is almost entirely a matter of reliability for a fueled power plant, it is not for a wind plant—for a wind plant, it is a matter of economical turbine design. With a very large rotor and a very small generator, a wind turbine would run at full capacity whenever the wind blew and would have a 60-80% capacity factor—but it would produce very little electricity. The most electricity per dollar of investment is gained by using a larger generator and accepting the fact that the capacity factor will be lower as a result. Wind turbines are fundamentally different from fueled power plants in this respect.
If a wind turbine's capacity factor is 33%, doesn't that mean it is only running one-third of the time?
No. A wind turbine at a typical location in the Midwestern U.S. should run about 65-90% of the time. However, much of the time it will be generating at less than full capacity (see previous answer), making its capacity factor lower.
What is "availability" or "availability factor"?
Availability factor (or just "availability") is a measurement of the reliability of a wind turbine or other power plant. It refers to the percentage of time that a plant is ready to generate (that is, not out of service for maintenance or repairs). Modern wind turbines have an availability of more than 98%--higher than most other types of power plant. After more than two decades of constant engineering refinement, today's wind machines are highly reliable.
http://www.awea.org/faq/wwt_basics.html#What is availability or availability factor
You're going to have to break your paragraph down for me. I read it several times but my hamster refuses to turn the wheel.
LOL I just reread it and it does not say what I thought it said. Its basically an indictment of the 0% model that parts changer was trumpeting in the beginning. It basically says that those studies only consider stats >95% which is bull cherry picking. I just looked up the stats and you are right.
Yeah thats what I thought and I was like wtf am I missing something.
oops, #16
For Those Near, the Miserable Hum of Clean Energy
http://www.nytimes.com/2010/10/06/bu...gewanted=print
I was saying wind mills did not store rotational power like a Rotary UPS does. You misunderstood.
As for the rest of your dribble...
Show me a capacitor rated in farads. They are generally rated in micro-farads and below.
You show yourself unknowledgeable again. You make too many foolish assumptions.
As for voltage, 120/240 is nominal. It varies somewhat. How many times you going to expose your ass?
Yes, the wind blows really good more often than most places, but it can suddenly die. Think of the mountains as a dam, and when the water finished running over the top, it stops. Believe it or not, the atmosphere can do the same thing, like with a temperature inversion, and you have denser air that finally equalizes. In fact, if you ever studied fluidics or pneumatics, you will notice they are all the same formulas.
You are wrong. Bet you cannot support your lies anymore than I can support my first hand knowledge.
Tell me master-baiter...
What do they use then?
You know, I often ignore such silly extreme "take it to the extreme" remarks. You know I am not making such statements like 100% uptime. Then you know that I use the actual definition of subsidy than the modern liberal revised definition also. Will we ever run out of natural gas? We probably will run out of enough of a flow rate to maintain power, but we will never run out. It will just get more expensive, and stop being used as our upcoming technology becomes relatively cheaper.
This is not true. Do you know what a SVC is? This is a problem that has been dealt with a long, long time ago. Before SVC you had STATCOM and before those, you had STATCON. You can also have overload capacity, which SVCs also deal with. Most SVC use thyristors for switching (which can switch on/off in about 15-20 usec).
Power sources are added and removed from the grid all the time. Look at solar production for an example.
Except mountains don't damn air in the atmosphere since the atmosphere goes much higher than the mountain and air always flows above and around it.
This is exactly what I mean about how you use jargon. Explain to me exactly how a temperature inversion would cause a wind that is blowing to suddenly stop. If you understand the mechanics then please break them down for the rest of us. Or tell us how dense air that is moving in such a large and complex system suddenly finds equilibrium.
I'm not debating that the wind can and does die down. There are calm winds in places and the air can be very very still. I'm saying your claim that this happens suddenly is bull .
But please, explain the fluid dynamics of how this happens or would happen. I'm especially interested in your temperature inversion explanation.
There are currently 1 users browsing this thread. (0 members and 1 guests)
Posting Permissions
